AMD Radeon HD 7970 Graphics Card

[Edmund]

AMD has announced its new high performance GPU the Radeon HD 7970. It is Engraved in 28nm. This gpu supports DirectX 11.1. It is being said that this gpu can give you double in performance in comparison to existing cards. Besides, it supports PCI Express 3.0, a new power management and of course AMD CrossFireX technology while keeping in mind the previous technologies such as management EyeFinity with resolution of up to 16k x 16k, DisplayPort 1.2 of the HDMI 1.4a and support for new monitors. Announced with the title of faster gpu in the world, this card is meant for high performance. The card should be available in the coming months for sale. It is packed with some of the most newest and next gen features which hardly any other carries. Releasing a new high performance card in Radeon HD 7000 series, AMD plans to make the coming year better for gamers. The GPU is built on Tahiti architecture which is also on Radeon HD 7950. Because of Tahiti based gpu it provides you awesome features related to Graphic Core Next architecture and uses 4.3billion transistors. AMD promises to significantly improve efficiency, which is also reflected in the gaming performance. In addition, there is a noticeable increase in performance tessellation, a revised anisotropic filtering, and new energy-saving mechanisms, one of three. Gigabyte of VRAM, PCIe 3.0, DirectX 11.1 and numerous other improvements. Built on AMD's the Graphics Core Next architecture which is the first time on the Tahiti-GPU makes Radeon HD 7970 a much powerful graphic processing unit.

It is based on lay 4312711873 transistors made from Tahiti XT chip with 2048 stream processors, 128 texture units (TMU) and 32 ROP units (ROP). The volume is present on board GDDR5 memory and 384-bit interface is 3 GB. The reference frequency, the formula is 925/5500 MHz (core / memory), but due to the presence of two BIOS chips to switch between them can be associated with increased frequency in one of them. In general, when it comes to overclocking Radeon HD 7970, then, according to the manufacturer to achieve a core clock of more than 1 GHz can be effortless. Special attention should be applied in a dual-slot graphics card active air cooling system, which in comparison with the cooler for the Radeon HD 6970 was subject to a major upgrade. In particular, the fan has become wider and started a new form of blades, which allowed them to increase the air flow produced no significant change in noise levels. In addition, the evaporation chamber at the base of the cooler was also improved. It is worth noting that the Radeon HD 7970 supports PCI Express 3.0 bus, and compatibility with DirectX 11.1, and set on the rear panel ports, one requires a DVI or HDMI, adjacent to two Mini DisplayPort.

Features :

• The world’s first 28nm GPU. The revolutionary new GCN Architecture. Ready for DirectX 11. PCI Express 3.0.1 The AMD Radeon HD 7970 is your personal checklist for ground-breaking technology.
• The next generation of AMD Eyefinity technology is here, featuring all-new support for stereo 3D, universal bezel compensation and brand new display configurations. Face it: the best just got better.2,3
• Armed with the new PCI Express 3.0 standard, multi-GPU configurations with AMD CrossFire technology are just another way to obliterate the competition with the revolutionary AMD Radeon HD 7970.4,5
• Leave no performance behind. Get higher clocks and faster gaming with AMD PowerTune technology on AMD Radeon HD 7970 Graphics.6
• Fold and mine faster than ever with AMD App Acceleration powered by the unprecedented 28nm GCN Architecture.7
• The market isn’t ready for 4k video, but Radeon is. With full support for 3GHz HDMI 1.4a and DisplayPort 1.2 HBR2, the AMD Radeon HD 7970 is set for quad HD.

Specification

• Up to 925MHz Engine Clock
• 3GB GDDR5 Memory
• 1375MHz Memory Clock (5.5Gbps GDDR5)
• 264GB/s memory bandwidth (maximum)
• 3.79 TFLOPs Single Precision compute power
• 947 GFLOPs Double Precision compute power
• GCN Architecture
• PCI Express 3.0 x16 bus interface
• DirectX 11-capable graphics
• OpenGL 4.2 support
• AMD Eyefinity multi-display technology1
• AMD App Acceleration2
• AMD HD3D technology4
• AMD CrossFire multi-GPU technology5
• Cutting-edge integrated display support
• Integrated HD audio controller
• AMD PowerPlay power management technology3
• AMD PowerTune technology3
• AMD ZeroCore Power3
• AMD Catalyst graphics and HD video configuration software

[Edmund]

Another additional feature in this applied technology is AMD Eyefinity 2.0 Technology, which enables the forces of a graphics card to play on the big picture, or five in a row lined with displays of landscape / portrait orientation of screens, or on six screens with landscape orientation of the screen, composed of three in two rows. You can also print a single three-dimensional image placed on three 3D-display with a DisplayPort interface, and a refresh rate of 120 Hz. By the way, for each monitor is now possible with a sound channel, which allows, for example, to arrange a video conference with several people simultaneously, or play on a team of monitors and view the film parallel to one another. In addition, the product used by such progressive innovations like improved integrated video Unified Video Decoder (UVD) to support H.264/AVCHD, VC-1/WMV profile D, MPEG-2, Multi-View Codec (MVC) and MPEG -4/DivX, proprietary engine Video Codec Engine (VCE) technology and AMD Steady Video 2.0.

Performance

Using a new instruction set, architecture Graphics Core Next comprises a new front-end, new processors control and management of caches full review and more. By looking more closely at the calculation units making up the chip, we see that their arrangement was completely revised. There is no question of sending a quantity of independent instructions to the chip and wait for their performance since AMD now offers at least a scalar function of a developer point of view. Each processing unit has its own scheduler for the division of labor, a division that takes place on four SIMD vector units that are attached. The said units each have 16 channels and the vector registers up to 64 KB per unit. In fact, a calculation unit CU (Compute Unit) can therefore perform 4 instructions of 16 items.

In terms of new, DirectX 11.1 offers several improvements starting with larger buffers, instructions or optional double precision support 16-bit color format. DirectX 11.1 should start a support for stereoscopic 3D for both games to videos and in order to standardize things a bit while improving performance. Of course, before taking advantage of new features of DirectX 11.1 will require Microsoft finalizes its library of programming and distributes.

Compatibility

With the Radeon HD 7970, AMD offers the first graphics chip compatible with the PCI-Express 3.0. At a time when this writing, only the latest generation of Intel platform, based on x79 chipset is compatible. The chip is compatible Tahiti PCI-Express 3.0. The advantage of this evolution of the standard is of course to provide additional flow: while the PCI-Express 2.0 provides a bidirectional bandwidth of 16 GB / s, PCI-Express 3.0 doubles the bet and offers 32 GB / s. One of the other changes in the PCI Express protocol for encoding which is much less demanding than before releasing because of the bandwidth.

The gpu is backward compatible with motherboards PCI-Express 2.0, while the performance gain in the usual applications of the standard will be more than 3.0 reduced. It should be noted that during our tests we encountered some problems with our accounting platform PCI-Express 3.0. Indeed, the main port PCI-Express, the Radeon HD 7970 has started once before and never wants to operate. It took the third position on the PCI-Express to the system boots again. Similarly, we met with some PCI-Express 3.0 compatibility issues with some games. This is true of Mafia II or the display of menus is torn by multiple vertical black bars. Back through the BIOS PCI-Express 2.0, the problem goes away for a quick one.

[Edmund]

Eyefinity

Eyefinity technology remains a niche solution for us. This does not prevent AMD to continue to evolve. Remember that with Eyefinity, it is possible to connect multiple monitors to a single graphics card for a game more immersive. Radeon HD 7970 allows the DDM (or Discrete Multi-Point Digital Audio) that can manage several different audio streams simultaneously. As part of a video conference with three different partners, each present on a screen, the graphics card can send to each of the three screens a different audio stream. In terms of 3D, Eyefinity is updated to handle three screens on a single graphics card DisplayPort displays each image in stereoscopic 3D.

And that's not all because in the management of video output, the chip is HDMI 1.4a Tahiti in Alternative 3 GHz, AMD called Fast HDMI. So it speaks to no one on the paper like that except it does two things: send a signal to 1080p with a 3D flow of 60 Hz for each eye or manage screens 4K resolutions.
In addition to decoding UVD engine capacity now well known, the Radeon HD 7970 gets a brand new unit called VCE or Video Codec Engine. This is a multi-stream hardware encoder H.264 course taking care of HD. With two modes of operation, using only one unit, the other using the computational units of the chip, the encoder will have to be managed by the encoding software.

Conclusion

AMD has proved to be one of the prominent and tough competitor in the market by introduction of this entirely new gpu with high end architecture. Considering this are the faster single gpu for pc, gamers can now get what they are really looking for. Due to drastic improvement the gpu generates more challenges. What matter here mostly is the backward compatibility and working stable on CrossFire. This are the things which are yet to be finalized. Serious PC gamers can have this card so confidently when they search for the currently most powerful graphics card. It is the fastest to date, single-GPU graphics card, an example of energy efficient and equipped with high-quality image filters. More strong performance is expected now.