Review of the amd radeon hd 7700 series card.

The company quickly brought to market two budget solutions that were based on the GCN architecture. The right AMD Radeon HD 7700 Series cards, whose features and price met the needs of mid- to low-end buyers, immediately became popular for their near-perfect price-performance ratio. Let's see what the peculiarity of these chips is.

The appearance of the ruler

AMD pays special attention to budget solutions. Most often, the TOP video cards cannot compete with the flagships from Nvidia, however, the younger chips confidently keep the popularity bar. Considering the fact that graphics solutions costing less than $ 200 are sold very often (this segment accounts for most of the sales), AMD's strategy to develop this niche is quite justified. As a result, we see many different graphics platforms from AMD based on Barts and Juniper processors.

But the popular HD 5770 solutions are becoming obsolete, and they have been replaced by the AMD Radeon HD 7700 Series, the technical characteristics of which will be indicated below. But there should not be an equivalent replacement, it must become better in its parameters. The 7700 line, which was new at that time, is exactly that thanks to its GCN architecture.

AMD Radeon HD 7700 Series Specifications

In addition to the new GCN architecture, the cards use the Cape Verde GPU. Of course, it is inferior to TOP solutions, since it contains 10 Compute Units. Each of them contains 64 stream processors. In total, this gives 640 processors, which is very small. Even in the relatively old 800 stream processors.

Also, these video cards have two memory controllers that provide a 128-bit bus. The Cape Verde processor also has a 0.5 GB cache. The new architecture is flexible and makes better use of the available resources of the computational units. There is also a tessellation unit, but the most important change is the transition to a 28nm process technology, which made it possible to raise the core frequency to 1 GHz. Note that the HD 7770 is the first video card to be mass-produced with such a core frequency.

Differences Between 7700 Series Models

The second video card based on the Cape Verde processor is the HD 7750 in the AMD Radeon HD 7700 Series. Its characteristics are cut, and this is logical, considering that we are talking about a junior chip. It is equipped with a processor with stripped-down computing units. There were 10 of them, in the HD 7750 there are only 8. Therefore, the number of stream processors dropped to 512, and there are only 32 working texture units. The frequency was also reduced to 800 MHz, but the memory frequency did not change (4500 MHz).

The power consumption characteristics of the AMD Radeon HD 7700 Series are not impressive. The older graphics consume 80 watts, the younger is limited to 55 watts. The latter does not require a power connector (power through the PCI slot is sufficient). All these differences boil down to one of the most important differences in the characteristics of the AMD Radeon HD 7700 Series: the bandwidth of the HD 7750 is 12.8 GB / s; the bandwidth of the HD 7770 is much higher at 16 Gb / s.

New HD 7790 chip

When everyone thought that the line would be limited to only these two video cards, AMD added new HD 7790 graphics to the series. This happened a year after the release of both cards in the series. The new model has become a very solid competitor for the GTX 650 Ti from Nvidia.

The new AMD Radeon HD 7700 Series graphics card has characteristics that differ sharply from the parameters of the series models. It uses the brand new Bonaire GPU on the improved architecture of GCN 1.1. The changes here mainly concerned the improvement of energy saving technology. Also, the new chip supports instructions of a heterogeneous architecture, which makes it possible to combine computing capabilities with a CPU.

The new chip has 14 GCN Compute Units, due to which the number of stream processors has increased to 896. This means that the new graphics card in the lineup is much closer to the HD 7800 series than to its own. However, the bus here remained 128-bit, but the memory frequency was increased to 6 GHz, and the GPU has the same frequency (1 GHz) as the younger model. All this made it possible to achieve an increase in throughput.

Asus Radeon HD7790

The best manufacturer that has managed to implement a cool cooling system is Asus. In addition, the manufacturer was able to overclock the chip by raising its frequency and improving its performance. A photo of the AMD Radeon HD 7700 Series, in particular, the Asus HD 7790, you see in the article.

Thanks to the cool cooling system, the card stays cool even under heavy loads. In Crysis: Warhead, within 12 minutes, the card heated up to only 60 degrees, and the fan speed did not exceed 1,480 rpm. This is an ideal result with no noise at all.

In this article we will talk about the Radeon HD 7700 Series. The characteristics of this device will be described below. Inexpensive solutions tend to be successful in the market.

Comparison

Let's start a detailed conversation about the AMD Radeon HD 7700 Series. The characteristics of this device are inferior to the flagship solutions belonging to the same series. However, the price of such equipment can be considered optimal, which makes it especially in demand.

The older series of video cards is the 7900. At the same time, its main features include the AMD Radeon HD 7700 Series we are interested in. Its characteristics support the DirectX and GDDR5 standards. The solution we are considering is based on a GPU called Cape Verde. This device belongs to Southern.

Specifications

Above, we have already briefly described the AMD Radeon HD 7700 Series video card. Its characteristics include 1.5 billion transistors. This chip was named Cape Verde. The production was carried out using 28 nm technology. A unified architecture has been created that includes an array of common processors that provide streaming processing of multiple types of data. Hardware support for DirectX solution has been implemented, which includes the Shader Model. The AMD Radeon HD 7700 Series graphics card is equipped with a 128-bit memory bus. It includes a pair of 64-bit controllers that support the GDDR5 standard. The frequency reaches 1000 MHz.

The video card we are interested in is equipped with ten GCN computing units. They include 40 SIMD cores. The latter consist of 640 ALUs. The composition includes 40 texture units. They support anisotropic and trilinear filtering for all formats. There are 16 ROPs on board. Antialiasing mode is supported. There is the possibility of programmable sampling over sixteen samples per pixel. Peak performance reaches 16 samples per clock cycle. Integrated support for monitors has been implemented. This solution includes HDMI, DisplayPort.

Specifications

The video card has a frequency of 1000 MHz. The number of processors reaches 640. The number of blocks is 40. The memory frequency reaches 4500 MHz. Type - GDDR5. The memory capacity is 1 GB. The memory bandwidth reaches 72 GB per second. The theoretical maximum fill rate is 16.0 gigapixels per second. The video card is equipped with one CrossFire connector. The creators have not forgotten about the PCI Express bus. The connectors are as follows: Mini-DisplayPort pair. Power consumption is in the range of 3-80 watts. There is a six-pin power connector. Implemented a two-slot design. The architecture in the device has brought improvements in universal computing capabilities. The basic building block of the architecture is GCN. It is from these elements that the graphics processors from the Southern series are assembled. The computing block is divided into 4 subsections. Everyone works on their own stream of commands. The individual GCN blocks received a dedicated data store. Also, these elements are equipped with a cache memory. The latter has the ability to write and read. In addition, the solution includes a full-fledged texture pipeline. It includes filtering and sampling blocks. Each GCN element is able to independently handle the distribution and scheduling of teams. One computing unit can execute 32 independent threads. The GDDR5 solution delivers 72GB / s of bandwidth. As for the cache memory of the second level, it received a volume of 512 kilobytes. Some improvements are seen in geometric performance. There is a ninth generation tessellator. It features caching and buffering optimizations. This has significantly improved the level of geometry processing performance compared to previous series of devices.

Speed

Now let's take a look at the Radeon HD 7700 Series. First, you need to take care of the software. We carry out all transformations on the Windows operating system. It is for this platform that the AMD Radeon HD 7700 Series is optimized. You must update the driver to a version not lower than Catalyst 12.6 beta. To work, we need the following programs: FurMark, GPU-z v, MSI Afterburner, HWMonitor. For overclocking, we use a stand-table with a built-in chiller. Installing the card on the stand. We are waiting for the coolant to cool in the chiller. We include. Launch Afterburner. We add Power Limit by twenty percent. We raise the tension to the maximum. As a result of such actions, the frequency of the video card will increase significantly, however, the system may not cope and the computer will freeze. These risks should be considered before starting the overclocking process. You can try to fix the situation. Reduce the voltage to 1.22 V. Set the cooler speed to the maximum value.

Gigabyte's 28nm GPU & Cooling System is the best choice for gamers!

Taipei, Taiwan, February 15, 2012- GIGABYTE Technology Ltd, a leading manufacturer of motherboards and graphics adapters, is pleased to present the AMD Radeon ™ HD 7700 series graphics cards: GV-R777OC-1GD, GV-R777D5-1GD, and GV-R775OC-1GI. Built with the latest 28nm graphics chip from AMD and GDDR5 memory, GIGABYTE is releasing these graphics cards with an increased core frequency. In particular, the model GV-R777OC-1GD operates at 1100 MHz! The graphics card is equipped with the latest cooling system developed by the company's engineers, it uses components regulated by GIGABYTE Ultra Durable 2 technology; GIGABYTE assures that the Radeon HD 7700 combines the best in heat dissipation and performance. The GIGABYTE Radeon HD 7700 also provides a number of innovative features such as the latest AMD APP, Microsoft DirectX® 11, AMD HD3D, Crossfire ™, and full PCI-Express 3.0 support. The GIGABYTE GV-R777OC-1GD, GV-R777D5-1GD and GV-R775OC-1GI Graphics Cards ensure gamers experience the ultimate gaming experience with realistic graphics while delivering fantastic performance!

For more information on the GIGABYTE GV-R777OC-1GD, GV-R777D5-1GD, and GV-R775OC-1GI, please visit

AMD officially unveils Radeon HD 7700 series

AMD has officially unveiled the new Radeon HD 7700 series, hoping to gain a foothold in the under $ 200 budget gaming segment. AMD says the Radeon HD 7700 series is designed to bring “the world's most advanced graphics to everyone.” The Radeon HD 7770 is based on a 28nm 1000MHz GPU with an all-new CoreNext architecture and 10 GCN compute units. , which is 640 stream processors, 40 texture units and 16 ROPs, the GDDR5 video memory interface is 128-bit with a frequency of 1125 MHz (4.50 GHz GDDR5 effective). The video card is powered by a 6-pin PCIe connector. The Radeon HD 7750 is based on GPU 28- nm with a clock frequency of 800 MHz, with a completely new architecture CoreNext and has 512 stream processors and 32 TMUs. The rest of the characteristics are the same as the HD 7770. The cost of the Radeon HD 7770 is $ 159, the Radeon HD 7750 is available for $ 109.

Following the official introduction of the Radeon HD 7700 series, many manufacturers have introduced their models:

Club3D HD introduced two models, the Radeon HD 7770 (CGAX-7772) and the Radeon HD 7750 (CGAX-7752). HD 7770, based on a reference board from AMD and uses a reference CO. The HD 7750 has a single slot cooling system.

ASUS has unveiled two Radeon HD 7700 models with its own design. The HD 777 0 model has an easy factory overclocking, as a bonus from the manufacturer - 1020 MHz for the core (versus 1000 MHz) and 1150 MHz / 4.60 GHz for the RAM (1125 / 4.50 GHz). The Radeon HD 7750, like the older model, has a small bonus from the manufacturer - 820 MHz for the core (versus 800 MHz), and 1150 MHz / 4.60 GHz for RAM (1125 / 4.50 GHz).

VTX3D presented its VTX3D HD7700 series models:

GIGABYTE introduced three models of the Radeon HD 7700 series - Radeon HD 7770 GV-R777D5-1GD (with reference frequencies), Radeon HD 7770 GV-R777OC-1GD (factory overclocked 1100 MHz for core, and 4.50 GHz for memory), Radeon HD 7750 GV-R775OC-1GI (factory overclocked to 880 MHz for core, and 4.50 GHz for memory). All three cards are based on Gigabyte's own design.

Hightech Information System (HIS) introduced the HIS 7770 1GB and the HIS iCooler 7750 1GB.

Sapphire has presented three models from the new series. All three are based on Sapphire's own designs. The Radeon HD 7770 is clocked at 1150 MHz for the core and 1250 MHz (5.00 GHz effective) for the memory. The second model HD 7770 AMD has recommended frequencies - 1000 MHz for the core and 1125 MHz (4.50 GHz effective) for the memory. The AMD HD 7750 also has recommended frequencies of 800 MHz for the core and 1125 MHz (4.50 GHz effective) for the memory.

XFX has launched as many as 9 models of the Radeon HD 7700 series. All models are divided by the difference in the cooling system - with one fan and two cooling fans. The presented models can also be divided into Core Edition (with reference frequencies) and Black Edition (with factory overclocking - 1095 MHz for the HD 7770 core, HD for the TBD 7750), and SuperOverclock Edition (1120 MHz for the HD 7770, TBD for the HD 7750) ...

MSI introduced two models - R7770-2PMD1GD5 / OC and R7750-PMD1GD5 / OC, equipped with an efficient proprietary cooling system