SonGoku
Member
Things that caught my attention during the reveal:
Cerny made no mention of RDNA arch which i think is due to AMD not formally announcing RDNA 4, they cant discuss the architecture yet
I expected it to be RDNA4 regardless considering the rumored RDNA 3.5 has basically all of RDNA4 improvements sans RT to save in die space for laptop APUs
Also
Similarly in the past Polaris was codeveloped for PS4Pro/OneX and there were no "high end" Polaris cards
Cerny mentioned custom hardware for machine learning
At first i just assumed they would just write their own software (PSSR) to leverage existent RNDA4 machine learning blocks but his "custom" wording makes it sound like the machine learning hardware used is not present on the RDNA arch they are basing the PS5 Pro on (RDNA4 presumably) and thus they requested the feature to be added from a future arch (RNDA5/UDNA) similarly to how they added RPM from Vega arc to the PS4 Pro Polaris GPU
tl;dr PS5 Pro seems to be based on RNDA4 with custom machine learning blocks taken from RDNA5/UDNA
Cerny made no mention of RDNA arch which i think is due to AMD not formally announcing RDNA 4, they cant discuss the architecture yet
I expected it to be RDNA4 regardless considering the rumored RDNA 3.5 has basically all of RDNA4 improvements sans RT to save in die space for laptop APUs
Also
Makes it sound like RDNA4 was codeveloped together for the PS5 Pro"PS5 Pro uses the new advanced [ray tracing] feature sets that AMD created as the next step in their roadmap architecture," Cerny told me. "But if you look around, there are no other AMD GPUs that use it yet. We motivated the development, and I'm very happy we did so
Similarly in the past Polaris was codeveloped for PS4Pro/OneX and there were no "high end" Polaris cards
Cerny mentioned custom hardware for machine learning
At first i just assumed they would just write their own software (PSSR) to leverage existent RNDA4 machine learning blocks but his "custom" wording makes it sound like the machine learning hardware used is not present on the RDNA arch they are basing the PS5 Pro on (RDNA4 presumably) and thus they requested the feature to be added from a future arch (RNDA5/UDNA) similarly to how they added RPM from Vega arc to the PS4 Pro Polaris GPU
tl;dr PS5 Pro seems to be based on RNDA4 with custom machine learning blocks taken from RDNA5/UDNA
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