I'm way,
WAY more interested in a PS6 tech-wise than PS5 Pro, that much is for sure. However I think a PS5 Pro would at least aim for the following:
-
$599 (I think this will become the new default price for top-end SKUs next gen, might as well test it out with a Pro refresh first)
-16 GB RAM (no reason to update the amount)
-4x 20 Gbps 4 GB GDDR6W modules (640 GB/s bandwidth)
**GDDR6W doubles the capacity per chip and doubles the I/O per chip, but is functionally 100% the same as GDDR6
therefore designs with current GDDR6 memory controllers can just drop in GDDR6W modules and "just work".
Using GDDR6W would also allow them to use less modules, 50% less, since each module now has double the
capacity. Leading to a smaller form factor.
-4 GB LPDDR5 (IIRC PS5 has some DDR4, so this would just be a replacement/upgrade of that,
mainly to offload background OS tasks from main RAM)
-GPU:
-Adjustments to cache scrubber setup (if required)
-2600 MHz frontend clock, 2700 MHz shader clock
- 3072 shader cores (1 GCD, 2 SE, 2 SA, 4 WGP, 8 SIMD, 24 ALU)
*AKA 48 CUs on RDNA2 terms. I think there's other reason Cerny mentioned a 48 CU GPU example at Road to PS5; it's a GPU size Sony were probably experimenting with, so they already have some idea on how core saturation can work at that size. With a better architecture (RDNA 3 or 4), a smaller node, more efficient memory etc. they may want to stick with this size in terms of CU counts.
Also with this example given, it'd seem that Sony don't need to do the butterfly approach in order to ensure BC of, say, PS5 games on a PS5 Pro (or would not
have needed a butterfly model per-se for PS4 & PS4 Pro BC on PS5 if they chose a 48 CU design). It's just one of the options available to them, but they may
have other ways of disabling "CUs" and shader cores with better granularity.
-192 TMUs (518.4 Gtexels/sec)
-96 ROPs (259.2 Gpixels/sec)
-3 Primitive Units (4 culling/2 rasterization each)(31.2 Gpolys/sec culling > 15.6 Gpolys/sec rasterization)
-33.17 TF
-5nm/4nm process
-CPU:
-8C/16T
-Zen 2
-4.4 GHz clock