At Gamescom AMD has officially announced the Radeon RX 7800 XT 16GB and RX 7700 XT 12GB graphics cards. These cards sit in the performance-segment and are designed for 1440p gaming. They will directly compete with NVIDIA’s GeForce RTX 4070 series. The cards are based on the latest RDNA3 graphics architecture and make use of the 5nm foundry process.
Powering both of the cards is the new AMD Navi 32 GPU, which will be the second largest chip from this generation. We are going to see a chiplet design here, but it is scaled down from what we saw on the RX 7900 series. The main graphics compute die (GCD) will have four memory cache dies (MCDs) which gives the Navi 32 a 256-bit wide memory interface.
The Radeon RX 7800 XT will completely max out the Navi 32 chip, so all 60 compute units (CUs) will be enabled. This gives you 3840 stream processors, 120 AI accelerators, 60 Ray accelerators, 64 MB of Infinity Cache, and 16 GB of GDDR6 memory across the chip’s full 256-bit memory interface. The card will have a game clock of 2124 MHz and boost clock of 2430. The 16GB of memory runs at 19.5 Gbps which gives you 624 GB/s of memory bandwidth. The total board power is 263W and the card will have two 8-pin PCI-Express power connectors.
The Radeon RX 7700 XT is of course going to have a cut-down version of the Navi 32 silicon. One of the four MCDs on the Navi 32 has been disabled so that brings down your memory to 12GB, Infinity Cache to 48MB, and memory bus width to 192-bit. On the GCD there are 54 compute units enabled which is going to give you 3456 stream processors, 108 AI accelerators, 54 Ray accelerators, and 180 TMUs. This card will run at 2171 MHz for the game clock and 2544 MHz for the boost clock. The speed of the memory has been decreased to 18 Gbps, so over a 192-bit interface means you’ll have 432 GB/s of bandwidth. Total board power is going to be 245W and you’ll have the same dual 8-pin PCI-Express power connectors as the RX 7800 XT.
AMD has put out their own in-house numbers comparing the RX 7800 XT to the RTX 4070 12GB and the RX 7700 XT to the RTX 4060 Ti 16GB. You can see those numbers below…
Both of these cards will be available September 6th with the Radeon RX 7800 XT having an MSRP of $499 and the Radeon RX 7700 XT having an MSRP of $449.
