Yeah I did address that in my earlier post. My suggestion was that you'd want an RX 6800 along with as fast a PCIe 4.0 SSD as you can lay your hands on. The RX 6800 I suspect will be overkill during its "useful PC life" while it's still supported in drivers and by developers. But once it falls of that treadmill (like the first gen GCN GPU's did some time ago) it'll have to rely on raw horsepower to make up the efficiency deficit. Whether it has enough of that to last the entire generation is up for debate but my suspicion is that in 95%+ of case it will.
On the IO side, we're still yet to find out exactly what Direct Storage does on the PC side and whether AMD GPU's will handle decompression like Nvidia's with RTX-IO. If they will, then you probably won;t need to go bleeding edge with the SSD, but I would anyway just in case GPU based decompression isn't a default part of the Direct Storage standard.
Oh yeah it looked terrible. But often you will find that increasing settings from low to medium has a relatively low impact on performance. So it may only be a handful of settings that you need to bump up with a minor performance impact to equal the base console settings. Ditto with the resolution. The res used was ridiculously low so I wouldn't be surprised if increasing it to something still ridiculously low like 840p wouldn't have a huge impact. It's possible that that isn't the bottleneck, the tester is simply turning everything down to minimum to try and maximise frame rates rather than looking for optimal settings of visual quality vs frame rate.
I'm not entirely convinced of this at the moment. While 10GB will definitely limit you at maxed out PC settings (it already can in some games), it might be enough to last the generation at console settings. This was looked at in another thread recently with the 4GB GTX 980 acting as a proxy (much more core power but half the VRAM of the current gen consoles) and the result seemed to be that the 980 was never bottlenecked by it's VRAM at console settings with no examples found were it didn't perform better (usually significantly so) than the PS4. Of course the fast IO could change that dynamic this gen though.
Yes I agree with this. Worth noting though that PC's make things less straight forward to compare as they also have system RAM pools. System RAM can be used as a fast cache (faster than the console SSD's) to store data outside of VRAM for fast retrieval without having to rely on fast IO. Granted it can't replace some aspects of fast IO, but insofar as the fast IO being a VRAM multiplier because you have to pre-cache less far ahead into the future, the system RAM could full fill a similar role. As a very simplified example you could say cache the next 30 seconds in 16GB of VRAM, but then another 30 seconds after that in system RAM before having to worry about having to go back to the IO.
I still see fast IO as essential this gen for a console matching experience though.
10 GB will only be used for GPU workload on Xbox Series X, they have 3,5 GB of RAM of slower RAM for CPU and sound workload.
And this is logic 980 was never VRAM limited with 4 GB of RAM, Consoles need to use some of the 5 GB of RAM for system (CPU workload) at 1 to 1.5 GB.
I think it is the weakness of 3070 and the rumored 3060 Ti with 8 GB of RAM. For sure GPU will use nearly 10 GB of RAM later in the generation