Preach brother! Why people continue to hold onto TF numbers is beyond me when it's proven so many times to be a faulty way to compare power. Let's add another data point relevant to this discussion:
If you look at the 7700XT and the 7800XT on paper, you'd think they are pretty close in performance based on the TF ratings. The 7700XT =
35TFLOPS while the 7800XT =
37.2TFLOPs. That's a difference of
<10% right. Yet what's the real world in game performance delta between those 2 card? Generally between
15-25% in favor of the 7800XT!! TechpowerUP averages this out to +21% in their
relative performance graph in favor of the 7800XT.
So the question is why? Because there is more to a GPU than just compute right!? 7800 XT has 6 more Compute Units, a wider memory bus, 2x larger L2 cache, and a +44% memory bandwidth advantage. Yes that stuff matters a lot!
So can PS5 Pro be faster than 4070? Absolutely and the people that scoff at that prospect clearly don't understand the data they are receiving. Think of it this way, the 7800XT is consistently faster than a 4070 and the PS5 Pro GPU config is a much closer match to the 7800XT than the 7700XT.
So everyone's still latching onto those leaked specs and that 45% "rendering performance" figure which has had multiple reasons presented as to why that figure doesn't make any sense. I really wouldn't hold onto that figure as a meaningful metric of the PS5 Pro's relative GPU performance for a number of reasons. Yes the +45% does roughly land at the 7700XT in perf from the current PS5. BUT, based on the (skeptical) leaked info on the PS5 Pro's GPU, it should easily beat up the 7700XT for several obvious reasons:
- CU Count: 7700XT has 54 CUs while the (alleged) PS5 Pro GPU has 60 CUs (difference of >10%)
- Memory Bus: 7700XT only has a bus width of 192-bit while the (alleged) PS5 Pro has a 256-bit bus (see what a difference that makes in the 7700XT to 7800XT comparison above)
- Memory Bandwidth: 7700XT only has 432GB/s while the (alleged) PS5 Pro has 576GB/s (difference of +33% in favor of the Pro)
- Cache size: both the L1 and L2 caches are 2x larger on the (alleged) PS5 Pro
- Architecture Improvements: PS5 Pro (allegedly) is based on a RDNA 3.5 or RDNA 4 architecture which will have some efficiency and performance advantages over the RDNA 3 arch in the 7700XT
With this in mind, the 7700XT literally has no advantage in HW spec except possibly clock speed since I surmise that the PS5 Pro clock speed is still TBD (tons of conflicting info here). But assuming no increase in clocks, the 7700XT has a roughly ~13% advantage is clocks which still wouldn't be enough to make up the differences I just outlined.
Again, pay attention to the (conflicting) data being presented. There simply is no logical outcome where a GPU configured as the rumored PS5 Pro is a "match" for a 7700XT (unless they severely underclock it lower than the base PS5). That simply does NOT compute (+45% rendering performance be damned). Either that 45% figure is wrong or the rumored specs are wrong. We shall see