Surely that same allocation can be applied to base PS5, and just isn't? There's nothing in hardware that'll explain this, right?
Sony PlayStation 5 Pro
- Thread starter chris1515
- Start date
Very likely no. Sony probably did the same thing they did with PS4 pro. Like Adding some DDR4 ram (there is already a 512MB DDR4 chip on PS5) and done some shenanigan with OS slow memory to use that ram instead of GDDR6 and increasing the amount of GDDR6 memory dedicated for games.
It worked pretty good on PS4 Pro so they have likely done a similar thing on PS5 Pro.
Please explain the tweet.
Charlietus
Regular
Sooo, Nvidia level of acceleration? That sounds a bit unbelievable. But it's Kepler so who knows 
Also, AMD has been very conservative in they're hardware implementations to save on die cost, so they would have to finally dedicate some space for ai and rt. And that would be a nice change.
Also, AMD has been very conservative in they're hardware implementations to save on die cost, so they would have to finally dedicate some space for ai and rt. And that would be a nice change.
It seems the next RDNA 4 RT is a huge improvements compare to RDNA 3 RT and this is maybe the PS5 Pro RT technology.
AMD skipped versions 3 and 4 of their RT IP for some reason? There isn’t much we can infer from that even if it’s true.
Most all the 40 series parts do have increased VRAM numbers. The 4060 and 4060Ti really should have been 4050 and 4050Ti at best though(and like $150 cheaper), at which point the 8GB would have looked perfectly reasonable. The 4060 is literally just a tiny, low end 146mm² part, for instance.
For PS5 Pro, I imagine a lot will ride on actually not dramatically raising resolutions, and instead using AI reconstruction to still use relatively lower base resolutions, just with much better end result that looks higher resolution. This should help save on VRAM demands. Using heavier RT options will probably squeeze them a bit more, but I still wouldn't expect everything to be using like Max RT settings on PC or anything. There will still need to be smart optimizations.
So PS5 is a (slightly) earlier version of RT than RDNA2 and Xbox Series consoles. I thought it probably was based on how everything else appears to be pre-RDNA2.
You've got to give it to Sony, deciding to say PS5 was RDNA2 in response to Series X being marketed RDNA2 was both ballsy and very successful.
Version 3 could be, for instance, for some upcoming APU, with version 4 being for PS5 Pro. The PS5 Pro is clearly more advanced than RDNA3 but with the long development times of console APUs RDNA4 might be a little newer.
Charlietus
Regular
I think what he is saying is that it's a huge jump for raytracing, not that rdna4 has magically got 3 new versions of rt cores all at once.
The actual jump for RT doesn't necessarily relate to the numbering of the IP.
PS5 looks to be the first RT IP, and PS5 Pro is possibly the first of the real next gen RT hardware, so slightly earlier than PC RDNA4.
Henry swagger
Newcomer
He knows nothing his just a github lurker
I'mDudditz!
Newcomer
We're still doing this?
Well you are, against all evidence. And against all hardware features.
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Quadbitnomial
Newcomer
It is AMD who designed these systems that are making those claims.
I don't understand what evidence you think there are unless you have some deeper knowledge of the underlying IPs used to create these systems. Drivers and compiler commit can only tell you so much. Even the Zen 2 CPU is very different between PS5 and Xbox Series X, but we don't argue insensately that it is not Zen 2 based on information that it is heavily modified and does not match any previous Zen 2 designs with features entirely removed.
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But was there any difference in practice? We didn't see any difference in RT unless I am missing something
Subtlesnake
Regular
The evidence points to the PS5 using the backend from RDNA1 + CUs from RDNA 2. The version number of the RT unit is meaningless without an explanation of what it signifies.
CUs from RDNA2 have int4 and int8. I'm sure that actual hardware designs are controband for believers.
davis.anthony
Veteran
It depends on what you class RDNA2 level hardware as...
If you class it has having all the RDNA2 architectural features (mesh shaders, hardware RT, hardware VRS, SF..etc..) then PS5 is not RNDA2.
If you feel it doesn't need all of the RDNA2 architectural features then PS5 is RNDA2.
If you class it has having all the RDNA2 architectural features (mesh shaders, hardware RT, hardware VRS, SF..etc..) then PS5 is not RNDA2.
If you feel it doesn't need all of the RDNA2 architectural features then PS5 is RNDA2.
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