I'm trying to figure out where they're getting 2-3x RT performance (And the leak stated up to 4x in some situations) over base PS5 from.
The 2x is pretty easy as that will just come from the additional RT units plus the extra clock speed.
36 RT units vs 60 RT units and variable 2.23Ghz vs 2.45Ghz (based on INT8 TOPS number)
Looking at this chart from Guru3D's review of the 7700XT with 3D Mark and comparing to the 6650XT (which is the closest desktop GPU to base PS5 in terms of specs and Tflops) the 7700XT is ~1.86x faster
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The 2/3x faster comment, if using the above chart as a reference (and the 6650XT representing base PS5) would mean PS5 Pro would be between the 6900XT and 4070ti.
And the comment about it sometimes being 4x faster than PS5 at RT would put it above the RTX 4080 which I just don't see.
The jump in RT performance doesn't reflect and corollate with the jump in raster performance - 1.5x in raster but 2/3x in RT??? Doesn't make much sense.
I seriously doubt they've changed anything at the architectural level due to time and cost.
Could PS5 Pro have a fixed clock rate? And the quoted 2/3x RT performance increase, depends on what clock rate PS5 drops down too? The lower the GPU clock rate on base PS5 the closer to the 3x improvement PS5 Pro gets too?
The 4070 is roughly a match for it in terms of raster, but looking at Techpowerups review of the 7700XT the 4070 is ~30% faster in RT workloads
If you also look at the ray tracing chart in the Techpowerup review of the 7700XT, it is ~2x faster than the 6600XT at 1440p, but closer to 3x at 4k.
So is it simply of a case of the higher the resolution your game, the closer PS5 Pro gets to being 3x faster at RT?
There is a chance that PS5 Pro could be able to do CP2077 with path tracing at 1080p30fps with their new ML upscaling to 4k.
So yea, the machine is pretty boring specs wise, only the RT claims are a bit of a mystery about how they're getting these increase figures.