AMD has officially unveiled a new series of graphics cards based on the 28nm GCN microarchitecture - AMD Radeon HD 7800. At the moment, it includes two models: and. The novelties are based on AMD "Pitcairn Pro" and AMD "Pitcairn XT" GPUs, which operate at a clock speed of 860 MHz and 1000 MHz, respectively. Thus, the video card will become the second in the company's lineup (after AMD Radeon HD 7770) with the name "Ghz Edition".

The solution is equipped with 16 compute units, 1024 stream processors, 64 texture units and 32 ROP units. The video subsystem of the novelty is made up of 256-bit GDDR5 chips with a total capacity of 2 GB. Their nominal clock frequency is at the level of 1200 MHz, and the effective one is 4800 MHz.

The external interfaces of the model include four ports: DVI, HDMI and two miniDisplayPort.

The graphics adapter has a better structure, which includes: 20 compute units, 1280 stream processors, 80 texture units and 32 ROP units. The video subsystem of this novelty, as well as the set of its external interfaces, is identical to the .

Mass sale of solutions and starts from March 19th. The recommended retail price of these new products will be $249 and $349, respectively. Comparative table of technical specifications of new video cards of the series AMD Radeon HD 7800 has the following form:

Production process standards, nm
microarchitecture
GPU		AMD "Pitcairn Pro"	AMD "Pitcairn XT"
	Clock frequency, MHz
Number of computing units
Number of stream processors
Number of texture blocks
Number of ROP blocks
video memory
	Volume, GB
	Rated clock frequency, MHz
	Effective clock frequency, MHz
	Bus width, bit
Internal interface		PCI Express 3.0 x16
External interfaces		1 x DVI 1 x HDMI 2x miniDisplayPort
Estimated price, $
Supported instructions and technologies		DirectX 11.1, DirectCompute 11, OpenGL 4.2, OpenCL 1.2, AMD Eyefinity, AMD CrossFireX, AMD HD3D, AMD PowerPlay, AMD PowerTune, AMD Eyespeed, AMD ZeroCore

AMD Radeon HD 7850M- graphics card with DirectX 11 support, based on the GCN architecture. The card is designed for medium and large laptops. It is one of the most productive video cards of 2012. In its manufacture, a 28 nm process technology is used.

Radeon 7800M series adapters are built on the Cape Verde chip, as well as Radeon HD 7770 for desktop computers, with 640 1D shader cores and 40 texture units. But in terms of clock speed, the HD 7850M is inferior to the HD 7870M (675 MHz to 800 MHz, respectively). Overall, the 7850M is about on par with HD 7750 for desktops.

As expected, the Radeon HD 7850M has become a competitor to NVIDIA's GeForce GTX 560M, since, in addition to higher performance, it also shows lower power consumption (like the GeForce GTX 660M). Thus, modern demanding games run freely on medium and high settings.

The 7850M features a new UVD3 video decoder for decoding MPEG-4 AVC/H.264, VC-1, MPEG-2, Flash, Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD video formats .

The 7800M series cards also support automatic switching between integrated and discrete graphics. This feature is called Enduro and is similar to NVIDIA's Optimus technology. In addition, the HD 7850M can support up to 6 monitors simultaneously using Eyefinity technology when Enduro is disabled.

The next feature HD 7850M is a ZeroCore feature that automatically reduces power consumption when in "sleep" mode with the display off. PowerTune technology allows the graphics card to overclock as long as the power consumption is within acceptable limits. For example, the frequency may decrease when running FurMark and OCCT, and increase in some games (Planet, Crysis or Resident Evil 5).

The built-in HD audio processor is capable of delivering high quality audio (TrueHD or DTS Master Audio formats) via HDMI and DisplayPort (such as Blu-ray video). In addition, with the help of DDMA technology, it is possible to output sound from several devices simultaneously.

Energy level 7850M much lower than the 7870M due to the lower core clock.

Manufacturer:	AMD
Series:	Radeon HD 7800M
The code:	Heathrow Pro
Architecture:	GCN
Threads:	640-unified
Clock frequency:	675*MHz
Shader frequency:	675*MHz
Memory frequency:	1000*MHz
Memory bus width:	128 Bit
Memory type:	GDDR5
Common memory:	No
DirectX:	DirectX 11.1, Shader 5.1
Energy consumption:	32 W
Technology:	28 nm
Notebook size:	big
Release date:	24.04.2012

* Specified clock speeds are subject to change by the manufacturer

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AMD Radeon HD 7870 video card review. Inexpensive alternative to flagships

Most recently, we told you about the top video cards of the new seven thousandth line of video cards from AMD - Radeon HD 7970 and Radeon HD 7950. But, as you know, you won't succeed with tops alone. Therefore, it's time to talk about the AMD Radeon 7800 Series - a less expensive, but still productive line.

Introduction. Estimated cost

The AMD Radeon HD 7870 video card should be sold in stores at a price starting from 350 US dollars (in our case, it must be converted into rubles at the Central Bank rate). The recommended price for the "younger brother", AMD Radeon HD 7850, is $250. It must be understood that in Russia the price will always be slightly higher (according to price.ru, about Quote Request: AMD Radeon HD 7870 0903 3 for 7870 and around Quote Request: AMD Radeon HD 7850 0903 3 for 7850). So, assuming I buy one of these graphics cards, I would expect to spend about $50-$80 more each time. But even if we do not take into account the markups of the Russian market, the cost of each of the video cards is very high, and for that kind of money, buyers will expect very high performance. Let's find out what we get by buying one of these cards.

Architecture 7800 Series

The 7800 subline is based on a new GPU codenamed Pitcairn.

This GPU is very attractive price / performance ratio. For most buyers of a 7900 video card, its performance will be excessive, and not everyone is willing to overpay more money if they do not see a difference. In turn, HD 7700 video cards may be too weak for a comfortable game at maximum settings in the popular 1920x1080 resolution.

This is a bit like the history of the AMD Radeon HD 5850 graphics card.

Remember this one? Despite the fact that it could not be turned into a HD 5870 by simply flashing the BIOS, it won the love of buyers due to its optimal parameters, which allowed it to run modern games at maximum settings while maintaining an adequate price. The current generation of HD 7800 video cards may well fill this niche.

The new GPU carries 20 GCN (Graphic Core Next) Compute Units. Recall that in the Tahiti GPU, which is equipped with the top-end Radeon HD 7970 video card, there were 32 of them. Each computing unit carries four vector units, and each vector unit, in turn, has 16 scalar.

Thus, the total number of computing modules in the new GPU is 1280 pieces. The number of rasterization units (ROPs) has not changed and remains equal to 32. The GPU clock frequency is 1000 MHz. The amount of video memory is 2048 MB GDDR5. Clock frequency 1200 (4800 effective) MHz. Memory bus 256 bits. All these characteristics are valid for the older video card of the subseries - HD 7870.

The younger brother of the Radeon HD 7850 is equipped with the same GPU, only slightly trimmed. The computing units were cut, their number was reduced to 16. Thus, the junior video card carries only 1024 computing modules on board, i.e. exactly half of their number in the Tahiti GPU. Accordingly, there are also fewer texture processing units, there are 64 of them left. The clock frequency of the GPU is 860 MHz. Other characteristics remained unchanged (relative to the Radeon HD 7870).

So, as mentioned above, the Pitcairn GPU is based on the Graphics Core Next (GCN) architecture. This means that he inherited all solutions from Tahiti (7900 Series). The new GPU is built on a 28nm process. The video card is equipped with PCI-E 3.0 (Gen3). The energy-saving technologies AMD PowerTune and AMD ZeroCore Power have not gone away either. AMD Eyefinity 2.0 technology will allow us to connect multiple displays with a maximum overall resolution of 16384x16384. 3D support is present and implemented by AMD HD3D Technology. AMD also continues to develop technologies for increasing the performance of the entire system using GPUs. In this case, we are offered to use the Video Codec Engine (VCE) technology, which accelerates video encoding by the hardware of the video card, thereby greatly helping the central processor and reducing the amount of time required for data processing.

The slide above confirms that the Pitcairn GPU has completely inherited all the goodies from its older brothers. Moreover, the 7700 line is also not deprived of functions, but more on that in the next article.

Judging by AMD's slides, the new video cards have modest appetites. The older HD 7870 consumes no more than 175 watts in load. The TDP of the younger HD 7850 card is 130 watts. When the display is turned off in idle mode, graphics cards consume less than three watts.

The graphs on the slide look convincing. AMD promises almost a twofold increase in performance. However, this is not very surprising: the CrossFireX mode has always scaled well. Drivers play a huge role here. I'm glad that at least here everything is in order. On this we turn to the study of the structure of video cards.

AMD Radeon HD 7870

As usual, let's start by examining the exterior, then move on to dismantling the cooling system and examining the printed circuit board and the elements on it.

The appearance of the video card is absolutely traditional and recognizable. As you may have guessed, we received a reference engineering sample in the laboratory. The length of the board is 245 mm. So far, only one thing can be said about the cooling system: hot air is blown out of the case using a turbine. You can also see that the switch between BIOS chips has disappeared. In fact, looking ahead, I will say that the second BIOS chip also disappeared. From now on, when flashing a video card, there will be a certain risk of not starting it again. Most will think that this is a minus. However, how often do you flash video cards? Especially if the cores are not unlocked at the same time? Well, I don't think it's very often. And for most users, this is a plus, since the absence of such a function leads to a decrease in the cost of the product.

You can also see only one CrossFireX connector. This means that we can combine only two video cards in tandem. The situation is similar to the one we discussed above with the chip and BIOS switch. How many users bundle three or more video cards? I think that such people are an absolute minority, especially among those who use not the most top-end video adapters. At the same time, its absence again reduces the final cost of the product.

There is nothing remarkable on the reverse side, and we move on.

Under the grille for blowing hot air out of the case, in the usual place, there are four video outputs - one DVI, one HDMI and two miniDP.

The video card is equipped with two additional power connectors. This can help with overclocking by increasing the voltage applied to the GPU. At such times, energy consumption increases dramatically.

For better heat transfer, the place of contact between the heatsink and the GPU and the adjacent area are made of copper. Three copper heat pipes aid in heat dissipation.

If someone remembers what the board of the reference HD 6870 looks like, then they will understand me in the feeling that I have already seen it somewhere. Indeed, a board with a very similar arrangement of elements was used in the reference HD 6970.

In the center of the PCB is the Pitcairn XT GPU itself, rotated 45 degrees relative to the substrate.

Around the GPU are eight Hynix video memory chips marked T2C, which means that these chips can operate at frequencies up to 5000 MHz.

The heart of the power subsystem is the CHIL CHL 8225G chip. The GPU power subsystem is five-phase. Pay attention to the location of the power phases. There is one phase per video memory power subsystem. The printed circuit board looks thoughtfully and neatly, there is no feeling that they did it at the last moment “on the knee”.

This is where we finish our acquaintance with the Radeon HD 7870 board and move on to the study of the Radeon HD 7850.

Radeon HD 7850

Let me remind you that this is the younger brother of the Radeon HD 7850 video card.

Externally, the video card is no different from its older brother.

And there are no differences here, except for the only additional power connector. Since the HD 7850 consumes only 130 watts, versus 175 watts for the HD 7870, a single six-pin connector will suffice. The main thing is that this does not leave an imprint on the overclocking potential of the card.

There are also no differences from the HD 7850. We have one DVI, one HDMI and two miniDP at our disposal.

The cooling system does not differ from that of the Radeon HD 7870. We are offered a copper base at the point of contact between the GPU and the cooling system, and three copper heat pipes for efficient heat dissipation.

As expected, the printed circuit boards of the two video cards are also completely identical. No differences in soldered elements are observed. The only difference is the "cut" phase from the GPU power subsystem. For stable operation at nominal value, this is definitely enough, but how the GPU will show itself in overclocking and how stable it will be is another question.

And here is the very heart of the HD 7850 - AMDPitcairnPRO GPU. It is made in China and carries 1024 computing modules. Recall: the video card Radeon HD 6850 carried 960 computing modules, i.е. the gap is not so great, if you do not take into account the new architecture and look only at the numbers.

On the printed circuit board of this card, 8 video memory chips with a total capacity of 2 GB are soldered. The density of one chip, respectively, is 256 MB. The marking has not changed and reads "T2C", which corresponds to the nominal frequency of 5000 MHz. I would very much like this bar to be overcome in overclocking.

Alternative versions of Radeon HD 7800 Series

As always, most manufacturers will want to move away from reference cooling systems and offer something of their own. Let's see what exactly.

ASUS HD 7870 and HD 7850

Video cards manufactured by ASUS with the well-known DirectCU II cooling system differ very little in appearance, but this is not the main thing. The main thing is that the manufacturer promises up to 20% increased performance compared to the reference version.

Club3D HD 7870 and HD 7850

Club3D decided not to go far from stock. The Radeon HD 7870 looks no different from the reference. The younger brother, apparently, got a heatsink personally for the GPU with one heat pipe and a fan. If at the same time the cooling of the remaining elements did not suffer, then everything is fine.

Gigabyte HD 7870 and HD 7850

Gigabyte decided to equip the 7800 series with its proprietary cooling systems, as well as increase the clock speeds. The HD 7850 video card is content with a cooling system with two fans, while the Radeon HD 7870 got a cooling system with three fans. Outwardly, there is nothing to complain about, except for the well-known problem with the removal of hot air outside the case.

HIS HD 7870 and HD 7850

HIS has equipped the new products with its proprietary IceQ X cooling systems. These COs have always been famous for their good efficiency. The younger video card got only two heat pipes, while the older video card received all four.

MSI HD 7870 and HD 7850

The TwinFrozr III cooling system is considered highly efficient, but it always raises the price tag. It often happens that it is easier to take the graphics card with the next highest performance. But no one canceled the advantages in the form of high efficiency and low noise level.

PowerColor HD 7870 and HD 7850

PowerColor introduced two versions of the Radeon HD 7870 and one Radeon HD 7850. The youngest HD 7850 will be content with a standard cooling system, as far as it looks. This is not scary, since the HD 7850 has a very low power consumption, and, accordingly, heat dissipation. For the HD 7870, two versions are prepared: one reference, and one with a PCS + cooling system.

Sapphire HD 7870 and HD 7850

Video cards manufactured by Sapphire will be equipped with cooling systems very similar to the proprietary FleX. There is no reason to doubt the effectiveness of these COs, since we have already tested similar video cards, and, even with much hotter tempers, the temperatures remained within reasonable limits.

XFXHD 7870

XFX has presented only the older video card Radeon HD 7870 at the moment. It will be equipped with two fans. We have already seen a similar design in the 7900 series video cards from this manufacturer.

Specifications table

Process technology, nm
Stream processors, pcs
Rasterization units (ROPs), pcs
GPU frequency, MHz
Video memory frequency, MHz
Video memory size, MB
Video memory bus, bit
Supported version of DirectX
Cost, rub*	Request a Quote: HD 7870 0903 3	Quote request: 7850 0903 3	Quote request: 6970 0903 3	Quote request: 7950 0903 3

*For prices www.price.ru for Moscow

Overclocking and temperatures

Let's start with the youngest video card, the Radeon HD 7850

The nominal clock speeds are 860 MHz for the GPU and 1200 (4800 effective) MHz for the video memory. The cooling systems in the references inspire confidence, so you can safely count on successful overclocking.

Without increasing the voltage, the video card was overclocked to 1025 MHz for the GPU and 1375 (5500) MHz for the video memory. These are good results. The fan speed was 40%. Higher values ​​made work next to the stand impossible. Still, a series of seven thousand video cards cannot be compared even with vacuum cleaners, they are quieter. Of course, at face value everything is fine, video cards are not audible in idle. But if you disperse it and unscrew the speed manually, then that's it, put out the light.

The nominal frequencies for the older HD 7870 video card are 1000 MHz for the video processor and 1200 (4800) MHz for the video memory.

As in the case with the younger video card, we turned the cooler speed up to 40%, which helped to lower the temperature. The video processor was able to function stably at a frequency of 1120 MHz. But the video memory is very upset. Unfortunately, she could not work stably at higher frequencies at all. Most likely, this is a special case and we were just unlucky. Probably one of the video memory chips was not in the best shape.

The operating temperatures of the two new products practically do not differ from each other in nominal terms. The older video card HD 7870, as expected, loses a few degrees under load, this is normal. During overclocking, temperatures are lower due to increased cooler speeds up to 40%. At the same time, the HD 7950 turns out to be a much hotter video card. But no one can compete with the HD 6970 in terms of heat dissipation. As befits the previous generation of video cards, it is the hottest video adapter among all test participants.

Competitors

To compare performance, we took two video cards: AMD Radeon HD 7950 and AMD Radeon HD 6970.

AMD Radeon HD 7950

The second most powerful video card from AMD today is against single-chip ones. We have already told you about this video card. I wonder how new items will behave against its background. On the side of the HD 7950 video card, the amount of memory is three gigabytes and the number of stream processors is equal to 1792 pcs.

AMD Radeon HD 6970

This video card is the TOP of the previous generation. It has high performance sufficient for modern games. Of course, at a resolution of 2560 x 1600 it has nothing special to catch, but in such modes more powerful video cards are also bent. The amount of video memory is 2048 MB. The number of stream processors is 1536 pieces, they operate at a frequency of 880 MHz.

test bench

• Processor - Intel Core i7 3960X
• Motherboard - ASUS P9X79 Deluxe
• RAM – Corsair XMS3 1600MHz 9CL 4x4GB
• Hard drive - Intel SSD 160 GB
• Power supply - Corsair HX850W

Test results AMD Radeon HD 78xx test results in Dirt 3

The new line shows good performance. In most cases, the overclocked Radeon HD 7850 is very close to the stock Radeon HD 7870. The latter, in overclocking, in most cases successfully competes with the nominal Radeon HD 7950. Everything is natural. The performance of the HD 6970 jumps a lot from application to application. In some places it outperforms the HD 7870, and in some places it loses to the HD 7850. In general, the performance of the new line is very pleasing.

Conclusion

The AMD Radeon HD 7800 series turned out to be very successful. At a lower cost, the Radeon HD 7870 in overclocking often catches up with a video card from the older top line - HD 7950. This will save money for those who want to get more performance for less money.

I really liked the temperature regimes of the new video cards. They are really cold. Under load at stock frequencies, the HD 7870 heated up to 68 degrees, and the HD 7850 - up to 66 degrees. This is a very good result for such performance. It becomes very noticeable if you start comparing all the results with the HD 6970 video card.

I really didn't like the noise of the video cards, if you set at least 50% of the cooler RPM. I can’t even imagine who will be able to work near the computer if you set the rotation speed to more than 50%.

As soon as prices are finally established, new items will be an excellent investment. This process usually takes a month or two. Most importantly, the price / performance parameter has not shifted towards higher prices.

7800 Series with different specifications. The chip, built on the Graphic Core Next microarchitecture, occupies a space equal to 2.8 billion transistors. Like most cards from Radeon, there is Eyefinity technology here, which allows you to connect up to six monitors at the same time. They can work independently of each other, or they can form one large monitor. It all depends on what settings will be exposed.

Radeon 7850

This AMD 7800 Series graphics card has 800 megahertz of processor frequency. High performance and bandwidth (153 gigabits per second) provides a bus size of 256 bits. The computing system processes data equal to 1.76 teraflops. Computing units are present in the amount of 16 pieces, and texture units - in the amount of 64 pieces. There are two cores for computing processes.

The memory format corresponds to the GDDR5 marking, and support for DirectX version 11 will help speed up interaction with operating system applications. To better optimize the performance of the card, you need to follow the driver updates, as only they are able to fully unlock all the capabilities of the GPU and provide access to the necessary settings. The base drivers, which designate the video card in the system, are included with the card, and the updated version can be viewed on the AMD website.

This AMD Radeon HD 7800 Series graphics processor is equipped with the latest in-built technologies that allow you to enjoy high-quality and smooth images at 60 frames, while the resolution can reach up to 4096 x 2160 pixels. The same applies to the audio stream, which meets all modern requirements, giving out high-quality sound.

Radeon 7870

This AMD Radeon HD 7800 Series graphics card is a powerful successor of the previous card in terms of characteristics. She has a whole gigahertz to work with the graphics processor. Performance for computing operations is much higher than in the previous version - 2.56 teraflops. There are 20 compute units and 80 texture units.

Since this is the flagship of the 7800 series, it surpasses its brother in many respects. Support for tessellation technology has been introduced into the video cards of this manufacturer for a long time, but in this version it is brought to the limit. Now you can enjoy a three-dimensional image, striking in its realism and detail. And improved anti-aliasing will help to achieve a smooth and pleasant picture.

In other parameters, this representative of the AMD Radeon HD 7800 Series is completely identical in terms of characteristics to the previous video card. Both cards are capable of supporting 3D technology in both video and games. It is also possible to connect several cards in order to increase the performance, but this parameter may also depend on the capabilities of the motherboard.

10 Mar. 2016

On this page below there are links to download the latest free AMD graphics card drivers from the Radeon HD 7800 Series, which is part of the Radeon HD Series family. The installation files are taken from the official site and are suitable for: Windows 7, 10, 8, 8.1, XP, Vista 32/64-bit (x86/x64).

For the convenience of choosing the right files, the version of your Windows and its bit depth (“bit depth”) are listed below.

Your computer runs on:

1. Download (153.5 MB / version 16.8.2 (Crimson Edition 16.8.2 Hotfix) / release date 08/12/2016)

   For Windows 7 32-bit

2. Download (239.8 MB / version 16.8.2 (Crimson Edition 16.8.2 Hotfix) / release date 08/12/2016)

   For Windows 7 64-bit

3. Download (134.8 MB / version 16.8.2 (Crimson Edition 16.8.2 Hotfix) / release date 08/12/2016)

   For Windows 10 32-bit

4. Download (208.24 MB / version 16.8.2 (Crimson Edition 16.8.2 Hotfix) / release date 08/12/2016)

   For Windows 10 64-bit

5. Download (205 MB / version 14.4 (Catalyst Software Suite) / release date 04/25/2014)

   For Windows 8 32-bit

6. Download (260 MB / version 14.4 (Catalyst Software Suite) / release date 04/25/2014)

   For Windows 8 64-bit

7. Download (154.21 MB / version 16.8.2 (Crimson Edition 16.8.2 Hotfix) / release date 08/12/2016)

   For Windows 8.1 32-bit

8. Download (239.88 MB / version 16.8.2 (Crimson Edition 16.8.2 Hotfix) / release date 08/12/2016)

   For Windows 8.1 64-bit

9. Download (179 MB / version 14.4 (Catalyst Software Suite) / release date 04/25/2014)

   For Windows XP 32 and 64-bit

10. Download (151 MB / version 13.12 (Catalyst Software Suite) / release date 12/18/2013)

    For Windows Vista 32-bit

11. Download (209 MB / version 13.12 (Catalyst Software Suite) / release date 12/18/2013)

    For Windows Vista 64-bit

Fallback - Obtain Drivers Using AMD Driver Autodetect

This option is convenient because the program AMD Driver Autodetect will automatically select and download the latest working drivers, which are suitable for your AMD graphics card and for your version of Windows. The program does not need to be installed, it was created by AMD and the files are downloaded from their official servers.

Instruction:

1. Launch AMD Driver Autodetect and it will immediately automatically select the necessary files for installing drivers.
2. To download files, click on the "Download Now" button.
3. Wait for the files to download and start the installation.