Video card. Video card operating temperature ASUS RADEON R9 270

Review Radeon R9 270 | Power consumption tests and temperature

Our German colleagues received a video card from ASUS with factory overclocking, so our results with low-frequency card may differ from the results of editors from Germany.

We see good energy efficiency indicators in a simple when working with one monitor. However, AMD cards are noticeably losing NVIDIA when connecting multiple displays.

GEFORCE graphic adapters win when playing Blu-ray, but AMD cards return their positions in gaming and computing tasks.

Especially impressive New RADEON R9 270. Since it has a factory overclocking.

This schedule does not talk about a reference cooler RADEON R9 270. However, ASUS Direct CU II copes well with the heat generation of the chip, and provides a low temperature in long gaming tasks. Under load temperature graphic processor does not exceed 70 degrees Celsius.

Review Radeon R9 270 | Decent Replacement Radeon HD 7870

how RADEON R9 270. It looks in comparison with the Radeon HD 7800 series cards of the previous generation? What is its position regarding Radeon R7 260x. , RADEON R9 270X. and GEFORCE solutions?

Performance RADEON R9 270. no different Radeon HD 7870. Even the most experienced gamer is unlikely to distinguish two cards during the game. What then makes sense to create a new model?

The main difference RADEON R9 270. from Radeon HD 7870. It is the presence of only one six-contact connector of auxiliary nutrition. That is, this is the fastest reference video card with one six-pin connector of all that we have tested. To earn this title, she overtakes a little GeForce GTX 660. . Although in another set of test tests, they could change - so these cards are close by results.

With similar productivity Price RADEON R9 270. ($ 180) for $ 10 lower than that GeForce GTX 660. . AMD card It is worth buying in the case of an upgrade in order to increase productivity. Radeon HD 7870. Recently fell markedly, so the difference between them became even less noticeable. However, the old models fell to free the warehouses for new renamed cards, and the HD 7800 models will soon disappear from the sale.

RADEON R9 270. - This is a fair replacement Radeon HD 7870. . However, we are worried about the soon termination of deliveries Radeon HD 7850. . Although Radeon R7 260x. Shows good indicators when modest characteristics, from GeForce GTX 650 Ti Boost It cannot compete (especially if you consider the price of $ 140). At the same time, the new AMD name scheme simply does not leave the place between

• Motherboard: ASUS Maximus. VII HERO (BIOS V 0904);
• CPU: Intel Core i7-4770k 3800 MHz (100x38, 1.132 V) or 800 MHz during the measurement of the cooling system noise;
• CPU cooling system: THERMALRIGHT ARCHON (Thermalright TY-140, 140 mm fan, 500 rpm);
• RAM: Kingston PC3-17000 (DDR3-2133, 9-10-10-27, 2x4 GB, two-channel mode);
• Hard Drive: Ocz Vertex 4, 128 GB;
• Power supply: ETG Premium 1200 watts;
• Case: Cooler Master HAF 922.

Software

• Operating system: Windows 7 x64 Ultimate;
• Video card driver: AMD Catalyst 14.4;
• Auxiliary utilities:
• GPU-Z v. 0.7.9;
• HEAVEN BENCHMARK 4.0;
• MSI Afterburner. V4.0.0 Final;
• GPU TWEAK V2.6.9.4;
• MSI KOMBUSTOR 2.5.

advertising

Toolkit and testing technique

For overclocking video cards, as well as monitoring temperature and fan speeds used mSI utility Afterburner V4.0.0 Final.

Checking the stability of accelerators in the process of overclocking was made by the MSI Kombustor 2.5 utility (GPU BURN-IN, 1920 x 1080). The resulting frequencies were additionally checked by HEAVEN BENCHMARK V 4.0 test runs with an extreme level of tessellation and graphic tests from 3DMark 2013 packages, 3DMark 11 and 3DMark vantage.

To check the temperature mode of video cards under conditions close to everyday, Heaven Benchmark V was used. 4.0 (Quality: Ultra, Tessellation: Extreme, AA8X, 1920 x 1080).

The noise level was measured using a TM-102 digital noiseomer with a measurement error of no more than 0.5 dB. Measurements were carried out from a distance of 0.5 m. The level of background noise indoors is not more than 28 dB. The air temperature indoors was 26 degrees Celsius.

advertising

Standard frequencies and acceleration

Test ASUS RADEON R9 270 DirectCu II OC

The video card was not in vain received the suffix "OS", because her clock frequencies Increased by the developers from 925 MHz along the kernel to 975 MHz at a voltage of 1.215 V. Video memory operates at a regular 1400 MHz.

In idle mode, the ASUS model reces the frequencies to the reference 300/150 MHz, and the graphics processor temperature is set at 32 ° C. There is nothing to say about the level of noise: it is minimal.

In the load frequency load mode and memory increases to the required 975 MHz and 1400 MHz, respectively. The fans spinled to 55% of their maximum power, not giving rise to the graphics processor temperature above 69-70 ° C with comfortable, despite 2300 rpm, noise level.

Since the MSI AfterBurner V4.0.0 Final utility does not know how to raise frequencies above 1050/1500 MHz, acceleration was carried out using the GPU TWEAK program v2.6.9.4. Nevertheless, despite the support of its own product, the frequency formula has changed little - 1100/6000 MHz. Their ASUS RADEON R9 270 DirectCu II OC has conquered without any problems.

After a series of tests, the temperature was set at 72 ° C, and the noise level erected slightly increased.

For a more complete picture, we give a graph of temperature and noise of noise from the revolutions of the fans, which will clearly show the efficiency of the cooling system of DirectCu II.

Test GIGABYTE RADEON R9 270 WINDFORCE 2X

Although this model It cost without overstocker consoles, it comes with the factory dispersal of the nucleus to 975 MHz. Video memory The manufacturer decided not to touch.

advertising

After a small test, the temperature of the graphics processor is simply installed at 30-31 ° C, and the frequencies are reduced to 300/150 MHz at a voltage of 0.875 V.

As it should be, in the mode of loading the video card works with the stated characteristics, but it can boast a more efficient cooling system. With its 1800 rpm, the temperature keeps 61 ° C. The noise-published level of noise can be described as below average and comfortable for long work.

But this time failed not only the utility MSI Afterburner V4.0.0 Final, but also gigabyte program OC GURU, as they both turned out to be incapable of setting frequencies above the mark of 1050/1500 MHz. We are content with what is.

advertising

After a couple of hours of testing, it turned out that the cooling system does not adhere to the cooling system and in this case.

At the end, it is worth leading a graph of temperature and noise from the revolutions of the Gigabyte Radeon R9 270 WindForce 2X fans.

Test XFX RADEON R9 270 Double Dissipation Edition

advertising

Go to the latest viewer, which works on reference frequencies - 925 MHz on the kernel and 1400 MHz by memory.

In idle mode, the temperature decreases to 31 ° C, and the fans operate at the lowest possible 1350 rpm. Even in this mode, they are barely audible.

Created by the test Heaven Benchmark V 4.0 with an extreme level of tessellation the load revealed that when it reaches 63 ° C, the video card resets the frequency up to 900 MHz along the kernel and reduces the voltage one step. There is nothing terrible in this, so it tries not to go beyond the specified power consumption.

advertising

After setting in Catalyst overdrive, Power Limit settings to the "+20" position we have reached the goal and returned the new job principle. Of course, this affected the increased heat dissipation, but it allowed to check the efficiency of the cooling system at a more severe load. The pairs of the runs were enough for the temperature to be fixed.

The maximum value reached 66 ° C, which is a good result. The current noise level at 2100 rpm was comfortable and did not stand out against the background of the work of the remaining components.

Acceleration was limited, the video card with ease took 1050 MHz along the kernel and 1500 MHz by memory. Noise level has not changed.

advertising

We now see a graph of temperature and noise from the revolutions of the fans.

Conclusion

To begin, let's say that no matter how much the original cooling systems have been tested, they are arranged in their own way, and if externally recognized, internally different.

The ASUS Radeon R9 270 DirectCu II OC model pleased with us, if not your appearance, then effective, and most importantly, with a smooth adjustment of fan speeds. In addition, it can boast elevated from the plant with frequencies and a high-quality elementary base, which played a role in its acceleration.

advertising

But in the case of Gigabyte Radeon R9 270 WINDFORCE 2X, we get the same and even better: a more efficient cooling system, low temperatures and a comfortable noise level. At first, you can note one excess connector additional nutrition, However, the manufacturer, having made this step, decided to be restred, and in the future, when the restriction on acceleration will be removed, such a solution will help to realize the potential of graphic aMD processor Curacao Pro.

Video Card XFX Radeon R9 270 Double Dissipation Edition is worth a mansion. If we have already seen everything in ASUS and GIGABYTE models, we all know, and nothing revolutionary is waiting for, then the XFX version can surprise. And the new design of the Double Dissipation line is just what many lacked: rigor and monolith. And remember, above mentioned an additional test with a removed plate? The results showed that the GPU temperature practically did not change and varied within 1-3 ° C from the reference depending on the test or game. Obviously, it makes no sense to remove the plate.

Well, the conclusion is simple - all three models of RADEON R9 270, which visited the laboratory, deserve attention from buyers. So the choice depends only on specific preferences.

Nefedov Peter aka. Go.d-bq.

advertising

Let's gratefully:

• Company RARD for testing aSUS video cards RADEON R9 270 DirectCu II OC, Gigabyte Radeon R9 270 WINDFORCE 2X and XFX RADEON R9 270 Double Dissipation Edition.

For example, the well-known multifunctional MSI AfterBurner utility supports voltage change by means this controllerthat probably will have to do extreme overclockers. Of the additional functionality We note the presence of a BIOS version selection switch, as well as three contact sites for measuring voltages by multimeter.

The crystal of the graphics processor of our instance of MSI RADEON R9 270X GAMING was released on the 28-nm technical process in Taiwan at the 30th week of 2013 (second half of July):

If the reference versions AMD Radeon. R9 270x. basic frequency The graphics processor in 3D mode is 1000 MHz and can increase to 1050 MHz, then on MSI RADEON R9 270X Gaming it is equal to 1030 MHz and may increase up to 1120 MHz. This is not recorded overclocking for factory R9 270X, but still 6.7% higher than the nominal. In 2D mode, the frequency is reduced to 300 MHz. The value of the Asic Quality that has fallen to us the crystal is 77.4%.

The video card has four gigabytes of video memory of the GDDR5 standard, located in eight FCFBGA packaging chips on the front side pCB. With the manufacturer of chips from the point of view of overclocking, we were not lucky - this is not an ELPIDA good overclocking potential (marking W4032BG-60-F):

The theoretical efficient frequency of operation of such chips is 6000 MHz, but in MSI did not retreat from the standard frequency of the RADEON R9 270x reference frequency, limiting the reference 5600 MHz. In 2D mode, the frequency of the video memory MSI Radeon R9 270x Gaming is reduced to 600 MHz.

MSI RADEON R9 270X Gaming Video Card Specifications are as follows.

Go to the cooling system, evaluating its efficiency and noise level.

⇡ Cooling system - efficiency and noise level

The video card has an improved version of the original Cooling system MSI Twin Frozr IV.

Its design is quite simple, but has several interesting features. The large nickel-plated aluminum radiator consists of thin and long loaves, penetrated by thermal tubes. Four tubes four, three of them have a diameter of 6 mm, and one - 8 mm:

Tubes made using Superpipe technology have twice as long as the heat exchange rate and transmit heat from the copper nickel-plated base to the radiator plates. All places of conjugation are neatly registered.

The whole design is cooled by two 100-mm fans with Propeller Blade technology, the essence of which is reduced to the presence of a special deflector at the end of each blade, due to which the air flow volume has been possible.

The speed of rotation of the fans is regulated by PWM-control and, according to monitoring data, can vary in the range from 1000 to 3030 rpm.

On the reverse side of the board, a protective plate is installed with an insulating gasket, and we have already been told on the metal plate-radiator on memory and power elements above.

To check the temperature mode of the video card MSI RADEON R9 270X GAMING as a load, we used five test cycles. Very highly resourcing game Aliens VS. Predator (2010) with the maximum quality of graphics in the resolution of 2560x1440 pixels with anisotropic filtering level 16x, but without MSAA smoothing. In this mode, the video card testing was heated stronger than when MSAA is turned on.

For temperature monitoring and all other parameters, the MSI Afterburner version 3.0.0 Beta 19 and the GPU-Z utility version 0.7.8 was used. All tests were carried out in a closed case. system BlockThe configuration of which you can see in the next section of the article, at a medium room temperature about 25 degrees Celsius.

As it turned out during the test, in automatic mode The fans of the cooling system MSI RADEON R9 270X Gaming The temperature of the graphics processor is installed at 74 degrees Celsius.

Auto mode

At the same time, the maximum fan speed increased to 1,700 rpm, or 36% of power. If it is raised to the maximum 3030 rpm, the peak temperature of the graphics processor will decrease by another 10 degrees Celsius - to the total 64 degrees.

Maximum speed

Of course, the visibility of the video card in this mode is quite strong, but it looks like on this parameter in comparison with competitors, we will now find out.

Our technique has not changed. Measuring the noise level of the cooling systems of video cards was carried out using the CENTER-321 electronic noiseomer after an hour in a fully closed room with an area of \u200b\u200babout 20 m 2 with double-glazed windows. The noise level was measured outside the housing of the system unit when the source of noise in the room was only the cooling system and its fans. The sound meter, fixed on the tripod, has always been located strictly at one point at a distance of exactly 150 mm from the fan rotor / cooler turbine. The motherboard in which the video card was inserted with the cooling system installed on it, was placed at the corner of the table on the polyurethane foam substrate. The lower limit of the noiseomer measurements is 29.8 dBa, and the subjectively comfortable (not to be confused with low) noise level during measurements from such a distance is near the 36 dBA mark. The speed of rotation of the fans changed throughout the range of their operation using a special accurate controller by changing the supply voltage in increments of 0.5 V.

For comparison of the noise level of the cooling system MSI Radeon R9 270X Gaming in the chart, we included the noise level measurement results of the reference AMD RADEON R9 270X, as well as the original Sapphire RaDeon R9 270x Toxic Tri-X and Gigabyte GeForce GTX 760 OC WINDFORCE 3X. The vertical dotted lines of the corresponding color marked the upper boundaries of the speed of cooling systems during their automatic PWM adjustment.

MSI TWIN FROZR IV is quite naturally noise less than the reference cooler AMD RADEON R9 270X, but two original video cards of other manufacturers has nevertheless lost: and Sapphire, and Gigabyte with automatic adjustment no less msi. Nevertheless, in general, on the backdrop of a quiet system unit, MSI Radeon R9 270x Gaming is not too highlighted during testing and is definitely not discomfort. And if you add high efficiency to this, you can recognize that the cooling system is quite successful.

⇡ Overclocking potential

Overclocking potential MSI Radeon R9 270x Gaming us, straight to say, was not impressed. The frequency of the graphics processor was possible to raise only 80 MHz, and the video memory is 680 effective megahertz.

With any further increase in frequencies, the image defects or the video card hung over. The final frequencies of the video card after overclocking amounted to 1200/6280 MHz.

With such a modest acceleration, the temperature mode of the video card has changed slightly. The maximum graphics processor temperature increased by 3 degrees Celsius - up to 77 degrees, and the velocity of the fans increased by only 60 ~ 70 rpm.

Let us turn to the estimation of the noise level, power consumption and temperature of the MSI Radeon R9 270 Gaming Oc Edition.

Power consumption of the entire system in idle mode, W.

MSI Radeon R9 270 Gaming OC Edition Video Card In idle mode shows a completely expected level of power consumption. It is 106.3 W, so we cannot say anything good or bad.

Power consumption of the entire system under load, W.

Under the load MSI Radeon R9 270 Gaming OC Edition shows itself at the expected level, considering technical specifications and thermal package (TDP). We get 322.8 W for the entire system, the video card for power consumption is between the RADEON R7 260x and R9 270x.

Temperature in idle mode, degrees Celsius

MSI cooler in inaction mode without any problems copes with the cooling of the video card, the GPU retains the temperature at 33 ° C. However, these results should still be taken into account with noise level.

Temperature under load, degrees Celsius

Under load temperature GPU video card MSI RADEON R9 270 Gaming OC Edition rises to 65 ° C. Temperature remains significantly lower than the High-End GPU level. For reference aMD video cards The temperature of 94 ° C has become an already familiar level, and it is fully conscious. NVIDIA temperature in mode Turbo Boost. Rise up to 83 ° C.

Noise level in inactivity, dB (a)

The noise level of 36.5 dB (a) can be called low, although for the video card with an alternative cooler I would like to get even less important. However, the user can make optimization independently using the appropriate utilities.

Noise under load, dB (a)

The same applies to the load regime - we obtained noise level 51.6 dB (A). Again, compared with various reference video cards, noise level seems too high. Considering the low temperature under load, the manufacturer could easily reduce the noise level. Let's hope that MSI will fix the fan profile in the future.

The older line of AMD accelerators includes models 270 / 270x, 280/240x and 290 / 290x. We have already met some representatives of the R9 270 and R9 270x on the example of Sapphire, Asus and Gigabyte. IN this review Speech will go AMD RADEON R9 270X in reference execution.

It should be noted that the Radeon R9 270X is a direct successor HD 7870 GHz Edition. Only the frequency of the graphics processor and memory, and the number of streaming processors / textural blocks and the size of the memory bus remained the same.

Specification

• Manufacturer: AMD;
• Model: Radeon R9270X;
• Gracil processor: Curacao XT;
• TechProcess: 28 nm;
• GPU frequency: 1050 MHz;
• Number of shader processors: 1280;
• Video memory: 2 GB;
• Type of video memory: GDDR5;
• Blossomy of the video memory tire: 256 bits;
• Video memory frequency: 1400 MHz (5.6 GHz QDR);
• CROSSFIRE support: yes;
• HDCP support: yes;
• Ports: DisplayPort, DVI-D, DVI-I, HDMI;
• Max. Number of plug-in monitors: 4;
• Additional power connector: 6 + 6 PIN;
• Length: 245 mm;
• Price: 8500 rub.

Exterior of the product

The video card came in an antistatic bag without configuration, so we will immediately go to appearance. The length is 245 mm, which will allow you to install the device even in a compact case.

All items are based on a black circuit board. You can also note the presence of crosses for fixing the cooling system.

It should also be mentioned that this map It is an engineering model, as indicated on the corresponding sticker.

Card together with the cooling system will take two slots.

To connect a variety of monitors, televisions or information panels, the following interfaces are provided: DisplayPort, HDMI, DVI-D, DVI-I.

To increase performance, a connector is provided for combining two video cards in CrossFire mode.

The device can consume up to 180 W. For stable work The power supply will be required with a power of at least 500 W and the presence of two 6-pin connectors. When organizing CrossFirex, the power supply is required with a power of 700 W.

Cooling system

The main difference between the reference system Cooling lies in the organization of air flow. Hot air is carried out beyond the system unit, which has a beneficial effect on the temperature of the remaining components of the system. On the other hand, the operating temperature of the device itself is significantly higher, compared with the samples of alternative cooling systems. An important factor is noise at work, in the case of references with it is clearly higher. The advantages of the reference can also be attributed a little smaller retail price And convenience when building Crossfirex.

The cooling system consists of plastic casing, radiator, fan and a solid aluminum plate. The main function of the casing is to derive hot air outwards.

The radiator consists of plates that pierce three thermal tubes. The illustration clearly shows that the central thermal tube is thicker than two others. Based on the radiator there is a copper plate. As a fastening, the cross-shaped frame is planted on 4-dimple-free screws.

All pairing points with a radiator are registered.

The aluminum plate cools all the power elements and memory chips, special thermal conducting gaskets are used in places of contact. The fan diameter OM 80 mm made of FIRSTD (FD9238U12D) is attached directly to the plate on the back side by three screws.

Printed circuit board

After a complete dismantling of the cooling system, the board is as follows:

The Curacao XT graphic chip is strictly located in the center, produced by 29 weeks 2013. Revision chip A1.

The total GDDR5 memory is dialed with HYNIX production chips with H5GQ2H24AFR-R0C marking. The effective frequency of memory is 6000 MHz, and the bike bit 256 bits.

In the photo, we see a lowering converter unit consisting of transistors K03M2C462CB and K03M2F16078, a ferrite choke of Rio by 1 μG, polymeric electrolytic capacitors ULR input and output filter.

The power controller was used by a specialized PWM controller with a designation on the AM113 case. GS7256 is a downstream transducer controller. Works at a fixed frequency of 600kHz, has a built-in function of a soft start, protection against short circuit, protection against increased and reduced input voltage, protection against overheating. It has a built-in diode for powering the control circuit of the upper transistor of the semide.

Transistors with Marking K03M52C462CB / K03M53G36OUX, Throttle 1R5 and three capacitors form a familiar lunch of a downstream converter.

The main power of the card is regulated by a five-phase PHM-controller CHL8225G. It controls DrMOS transistor assemblies from Renesas (R2J20658BNP marking), which, together with chokes, labeled Magik inscription, and multiple polymeric electrolytic capacitors, form a powerful converter to power GPU and memory.

Three-lab chip with 78m05g marking is linear stabilizer Voltage at + 5V.

On the back of the printed circuit board, some elements are also located:

PD1503YVS is a specialized assembly of field transistors with an integrated Schottky diode. Designed for use in direct downstream transducers.

GS7253 is a direct downstream converter. It has functions of a soft start, protection against short circuit, protection against reduced and high input voltage, protection against overheating. It has a built-in diode to power the top key.

GS7103 Linear voltage stabilizer. It has a small voltage drop due to the application as an adjusting element field Transistor. It has functions of a soft start, protection against short circuit and overheating. It can be remotely turned on and off. Differs in small self-consumption in the off state.

Test Stand Configuration

• Processor: Intel Core i7-3770K (3500 MHz);
• Motherboard: MSI Z77A-G45, BIOS 2.C version;
• Cooler: Corsair H-110;
• Thermal interface: Arctic Cooling MX-2;
• Memory: 2 x 4 GB DDR3 1866, CRUCIAL BLT2CP4G3D1869DT2TXOBCEU;
• Video card: RADEON R9270X (1050/5600 MHz (core / memory));
• SSD drive: PLEXTOR PX-128M5P 128 GB;
• Fans Rotation Regulator: Schyte Kaze Q-12;
• Power supply: Corsair AX860, 860 watts;
• Case: NZXT Switch 810;
• Monitor: ViewSonic VP2770-LED;
• Operating system: Windows 7 64-Bit Service Pack 1;
• Drivers: AMD Catalyst 14.3 Beta

As central processor Intel Core i7-3770k was used, while the processor frequency was nominal. Hyperthreading and TurboBoost during testing were included. As a platform used motherboard MSI Z77A-G45 (BIOS 2.C version). The factory thermal interface on the graphic chip was replaced by Arctic Cooling MX-2.

By default, the GPU frequency is 1050 MHz, and the memory frequency is 1400 MHz.

Synthetic tests

To estimate productivity in the synthetics, Valley Benchmark tests, Heaven Benchmark, 3DMark11 and 3DMark13 were used.

Gaming tests

For clarity, in consolidated tables Included Gigabyte GV-R927OC-2GD results from past review.

We turn to game applications and focus on the test method. FPS measurement was carried out using the FRAPS utility, the resolution in all games was installed at 2560x1440 points. Vertical synchronization was disabled, and all settings are set to maximum, including smoothing, subject to availability of this option in the game settings.

As a result, we can conclude that the performance of the R9270X is close to the level R9270. And even in the absence of factory overclocking at GV-R927OC-2GD, the results would be close, especially in demanding games. The resolution of 2560x1440 is still facing FPS on the example of Assassin "S Creed IV Black Flag, Crysis 3 and Metro Last Light. You can play the rest of the game without problems.

Temperature and acceleration

Without load, the temperature reaches 37 degrees, in operation the fan is practically not heard. Upon full load, the maximum temperature was 81 degrees, but the noise published with clearly heard and causes discomfort.

The fan rotation adjustment range is from 1000 to 6000 rpm. For all the time of use, the speed did not exceed 2163 rpm. But if the turbine turnover is hand-made by 100%, then the sounds of the published remotely resemble the bleaching aircraft.

During the selection of working frequencies, the following results were achieved during acceleration: for GPU, the frequency was raised by 100 MHz and amounted to 1150 MHz, and for memory, the frequency was increased by 250 MHz, which eventually amounted to 1650 MHz.

Conclusion

Considering the rebranding HD 7870 GHz Edition to wait for some revelations, in this case we are observing evolution, and not a revolution. In the face of Radeon R9270X, we get a slightly more productive option RADEON R9270. At the same time, I want to recommend to buy a version with an alternative cooling system and the maximum factory overclocking, then the speed gain will be noticeable and the purchase will be justified.

Pros:

• Quality of manufacture;
• Performance;
• Overclocking;
• Small power consumption.

Minuses:

• Noisy cooling system;
• Overcharge.

We express the gratitude to AMD for the testing sample RADEON R9 270X.