AMD Radeon™ HD 7990 Graphics

AMD has finally released its new HD 7990, it uses two HD 7970 GPUs mounted on a single board. The current generation AMD GPU series collectively known as "Southern Islands" were released over a year ago, with the beginning of its rollout in January 2012.

         The Radeon HD 7790 released last month it’s a product most gamers have the potential to enjoy considering its $150 price tag. The HD 7790 took the chip count for the series to 10 distinct 28nm GPUs. Still AMD feels they need to offer an ultra-expensive graphics card as well and therefore today they are releasing the Radeon HD 7990. Although it's been over a year since they launched the Radeon HD 7970, we are just getting an official dual-GPU version, in truth they have been around for some time.
   In the case of the Radeon HD 7990 it takes a pair of 7970 GPUs with overclocked cores (from 925MHz to 1000MHz), while boosting the GDDR5 memory from 1375MHz to 1500MHz. These clock speeds happen to match the 7970 GHz Edition, though the 7990 doesn’t feature a Boost clock, so we feel the GPUs are better compared to the standard 7970.
Radeon HD 7990 in Detail
      Here are some figures that AMD is throwing around to describe the Radeon HD 7990: 8.6 billion transistors, 4096 stream processors, 8.2 TFLOPS computer power, 6GB GDDR5 and 576GB/s memory bandwidth. The Radeon HD 7990 is a monstrous graphics card measuring 30cm long (12 in), making it 3cm longer than the 7970 GHz Edition.

        Cooling the "Malta" GPU are two massive aluminium vapour chamber heat sinks, each with 62 fins and four heat pipes. The vapour chamber design was first implemented by the Radeon HD 5970 and has since been adopted by numerous high-end AMD and Nvidia graphics cards. Heat is dispersed by a trio of 75x20mm axial fans that pull air in from inside the case and push it out the back. The HD 7990’s fan operates quietly for the most part, but despite the card's impressive idle consumption of just 15 watts, it still chugs up to 375 watts under load, so the fan does kick up a little during heavy gaming sessions.
 

Model	AMD Radeon HD 7990
Year	April 2013
Fab Process	28 nm
Codename	Malta
Architecture	GCN     64 Compute Units (4096 Stream Processors)     256 Texture Units     256 Z/Stencil ROP Units     64 Colour ROP Units     Quad geometry units     Quad Asynchronous Compute Engines (ACE)
Cores	2
Core Speed	950MHz Up to 1.0GHz with Boost
Bus	PCIe 3.0 x16
Memory	6G DDR5 Memory
Bus Width	384-bit (x2)
Memory (Base) Speed	1500MHz Memory Clock (6.0 Gbps GDDR5)
Bandwidth	288000 MB/sec (x2)
Shader Model	5.0
Unified Shaders	2048 (x2)
Shader Speed	N/A MHz (x2)
Texture Mapping Units	128 (x2)
DirectX®	11.1   9th generation programmable hardware  tessellation units   Shader Model 5.0   DirectCompute 11   Accelerated multi-threading   HDR texture compression   Order-independent transparency
OpenGL Version	4.3
Texel Rate	121600 Mtexels/sec (x2)
Pixel Rate	30400 Mpixels/sec (x2)
Power (Max TDP)	375 Watts

               

               

               

v  AMD Eyefinity multi-display technology2

Up to 6 displays supported with DisplayPort 1.2 Multi-Stream Transport

     Independent resolutions, refresh rates, color controls, and video overlays

                          Display grouping

                                       Combine multiple displays to behave like a single large display

v  AMD App Acceleration3

                          OpenCL 1.2 Support

                        Microsoft C++ AMP

                        DirectCompute 11

                        Double Precision Floating Point

                        AMD HD Media Accelerator

                                        Unified Video Decoder (UVD)

                                                               H.264

                                                               VC-1

                                                               MPEG-2 (SD & HD)

                                                               MVC (Blu-ray 3D)

                                                               MPEG-4 Part 2 (DivX/Xvid)

                                                                Adobe Flash

                                                                 DXVA 1.0 & 2.0 support

                                                Video Codec Engine (VCE)

                                                                Requires AMD Catalyst 12.7 Beta (Or higher)

                                                               Multi-stream hardware H.264 encoder

                                                                Full-fixed mode: 1080p @ 60 FPS encoding

                                                               Hybrid mode: Stream Processor-assisted encoding

                                                   Enhanced Video Quality features

                                                             Advanced post-processing and scaling  

    

Posted in: AMD, GRAPHICS