- Jun 1, 2017
Going by the gfx10xy listing, e.g.:This is why I have an issue using the consoles to compare and try to evaluate RDNA2 in desktop.
(A screenshot / not mine, but seen and is real from a principal engineer at Sony that has been deleted)
View attachment 30005
I asked a few pages back about scaling....
If we are looking at consoles for speculation then I feel the XSX is the best comparison, specifically the clocks. You got a XSX 52CU part at 1.8ghz. I seriously doubt you will get an RDNA2 desktop card that operates at 2.3-2.5ghz plus as standard all the time. I think we'll get boosts to 2.2ghz ish but not a permanent thing.
As for PS5 I believe it will be powerful and compete well and the design is more of a "cousin" to the XSX. Sure it has speed but maybe that is because it is a cousin and not a full v2 approach.
I also don't think it is effective to take a look at PS5 power for example and extrapolate how a desktop RDNA2 card will be because of this "Hybrid".
...work on PS5's GPU started along with RDNA1. XSX's joined later along with RDNA2, so it having a more modern base would be natural. So the latter should be more comparable with upcoming consumer RDNA2 GPUs.It's in the Linux GPU drivers. So each RDNA product has an identifier along the lines of gfx10XY. The X is like a family of products, the Y is the number of the product in the family - the order in which the design was created. It's fundamentally the same as Navi1X/2X, but only includes dies past a later stage on becoming a real product. That is to say for example, Navi11 - a dead project - does not have a gfx number.
Navi10Lite - gfx1000 (PS5)
Navi14Lite - gfx1001 (Lockhart?)
Navi10 - gfx1010 (5700XT/5700/5600XT)
Navi12 - gfx1011 (Unknown, but 40CUs and HBM2)
Navi14 - gfx1012 (5500XT/5500M/5300M)
Navi21Lite - gfx1020 (Xbox Series X)
Navi21 - gfx1030 (Rumour: ~500mm^2)
Navi22 - gfx1031 (Rumour: ~250mm^2)
Navi23 - gfx1032 (?)
VanGogh - gfx1033
VanGoghLite - gfx1040
So what does all of that mean, well, for starters, anything Lite is semi-custom. That should be fairly obvious given the fact that the PS5 and Xbox SoCs are both there.
Next thing you might notice is the pattern there.
gfx1000, 1020 and 1040 are all used for semi-custom projects.
gfx1010 is RDNA1.
gfx1030 is RDNA2.
It's worth noting that as semi-custom projects they likely have features their gfx names don't let on. For example, the PS5 is closer to RDNA2 in terms of it's performance, given how it can clock so high. Though that might be after future revisions (Oberon, Flute etc). The RTRT functionality was probably brought over from RDNA2 right from the beginning, but no clue as to the rest.