VR-Zone reports that upcoming dual-gpu Radeon HD 7990 graphics card might be released in two weeks.
According to VR-Zone, one of the most anticipated card by enthusiasts, which was supposedly shown at AMD Developer Summit 2012, should be available in very limited quantity in July. With a GPUs already sampled, production might start in the second half of July. What it means is that Radeon HD 7990 may arrive later this month. Although the price was not yet revealed, it’s still believed to become a better solution in comparison to NVIDIA’s GeForce GTX 690. That’s because HD 7990 has some advantages over NVIDIA’s product. Radeon HD 7990 will have more memory than its counterpart (6144 MB of GDDR5 memory). Since this is the New Zealand GPU where are taking about (aka dual Tahiti XT), it will be offering a higher floating point computing performance, not to mention, higher memory bandwidth (but that’s because Radeon HD 7900 uses wider 384-bit interface). It is also pretty obvious that HD 7990 will use updated Tahiti XT2 silicon.
The most interesting part is where the source mentions 12GB version. Although it’s highly doubtful, because AMD would have to either use memory chips with higher capacity or just place more of them on the PCB (dual-layer card? don’t think so). Moreover, 12GB of frame buffer is absolutely useless for any game. It could have some impact on Eyefinity 6 configuration though.
AMD Radeon HD 7990 vs NVIDIA GeForce GTX 690
|AMD Radeon HD 7990||NVIDIA GeForce GTX 690|
|GPU:||28nm New Zealand (2x Tahiti XT2)||28nm 2x Kepler GK104|
|Memory:||6144/12288 MB GDDR5||4096 MB GDDR5|
|Memory Interface:||768-bit (2x 384-bit)||512-bit (2x 256-bit)|
|Power Connectors:||2x 8-pin||2x 8-pin|
|Stream (CUDA) Processors:||4096||3072|
|Texture Mapping Units:||256||256|
|Raster Operating Units:||64||64|
|Cooling:||Triple-Fan, Dual-slot||Single-Fan, Dual-Slot|
- Source: VR-Zone.com