AMD finally unleashes new 7700 XT and 7800 XT mid-range GPUs
They've been an awfully long time coming. But AMD finally has some new GPUs to take on Nvidia in the meat of the mid-range gaming graphics card market. We give you the AMD Radeon RX 7700 XT and the AMD Radeon RX 7800 XT. Both GPUs will be available from September 6th for $449 and $499 respectively which is both better and worse than we were expecting.
Well, we say mid-range. These days «mid-range» means an awful lot of money. But hold that thought while we deal with the speeds and feeds of these important new GPUs.
Ultimately, the 7700 XT and 7800 XT are very much in line with the expectations generated by the incessant rumour mill. So, both are based on AMD's new Navi 32 GPU. Like the Navi 31 monster in the Radeon RX 7900 models, Navi 32 is a chiplet design with a main GCD die containing all the shaders and clever stuff which is surrounded by smaller MCDs with the memory controllers and cache.
Navi 32's GCD is inevitably smaller than that of Navi 31. And it likewise has fewer MCDs—at most four to Navi 31's six.
Anyway, it's the key numbers you want, so here we go. The 7700 XT rocks 54 RDNA 3 compute units for a grand total of 3,456 shaders or double that number if you subscribe to the double-pumped metric that sometimes applies to RDNA 3-based GPUs.
Either way, you get 12GB of 18Gbps VRAM running over a 192-bit bus for 432GB/s of bandwidth and 48MB of Infinity cache. As for clockspeed, you're looking at a boost clock of 2,544MHz.
As for the 7800 XT, the compute unit count rises to 60 and thus the shader count increases to 3,840 running at a boost clock of 2,430MHz. There's an extra MCD and thus a 256-bit bus enabling 624GB/s of bandwidth courtesy of 19.5Gbps VRAM modules. Oh and the Infinity cache is upped to 64MB.
On
Read more on pcgamer.com
