Quote from: Aliyyyy on May 05, 2022, 03:06:36
Saying it is between 6600xt and 6500xt because of 1536 shader is dumb
Memory bandwidth is still less than half of 6600xt
Like someone else said, side-note: they mentioned RX 6600, not the XT SKU. And it's not as far-fetched as you'd think. RTX 3050-like performance isn't totally unrealistic.
Anyway, yes, raw compute specs are just half the picture and bandwidth matters a lot, but do note that:
1. Phoenix/RDNA3 will come with massively redesigned cache hierarchies (likely even bigger L2-per-stream processors than Rembrandt/RDNA2 over previous generations and more efficient hardware scheduling and loading of stream processors)
2. It looks like RDNA3 will also feature massively redesigned DCC hardware (this helps with bandwidth usage efficiency), basically RDNA3 will do more with (for example) 100GB/s of bandwidth than RDNA2.
3. (for mobile and miniPC prebuilts and such) It's highly likely Phoenix will have support for LPDDR5X, which can operate from 7500 to 8533Mbps (up to 33% higher than the LPDDR5-6400 Rembrandt supports)
So even without dedicated middle-man memory like Infinity Cache on dGPU RDNA2/3, I think they'll do a lot to properly address how these RDNA3 iGPUs will feed themselves with information.
Either way, it looks very likely that nVidia's "MX600" dGPUs will not be a thing next generation. Both Intel and especially AMD are upping the iGPU game a lot.