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[Bofferbrauer2]

JEMC said:

Bofferbrauer2 said:

The big unknown with RDNA4 is the memory. Will that 8800XT come with a 256 bit bus and 16GB VRAM or will there be more? Considering that the purported performance will be roughly on par with the 7900XT, which comes with 20GB, a 320 bit bus seems more appropriate - but at the same time too big for a non-high-end card.

My RDNA4 expectations:

1. 8800XT: 72CU, 320 bit bus, 20GB VRAM @24k MT/s, TBP ~250W, ~7900XT performance
2. 8700XT: 60CU, 256 bit bus, 16GB VRAM @22k MT/s, TBP ~210W, performance somewhat above 7800XT
3. 8600XT: 40CU, 192 bit bus, 12GB VRAM @22k MT/s, TBP ~170W, performance between 6750XT and 6800
4. 8500XT: 32CU, 128 bit bus, 08GB VRAM @20k MT/s, TBP ~140W, ~7600 performance

I agree with most of your post. I only disagree with the performance of the 8600, because a 6800 isn't much slower than the current 7800, and if the 8700 has that level of performance, that could lead to problems with those two cards.

At the same time, I really hope the 8600 gets the performance bump it didn't have this gen, so I have mixed feelings.

I said 6750XT and 6800 (non-XT) because there really ain't anything else in between those 2 cards (the 7700XT could possibly count, but I have no idea how the 7700XT stacks up to the 6800 non-XT) from AMD, so I just said between 6750XT and 6800.

Also, in case it wasn't clear, 8800 and 8700 are based on the bigger chip, while 8600 and 8500 come from the smaller one.