I am still not sure why Sony cant do the same with BC as MS can.
MS has shown its actually possible as they have done it.
Last gen Sony tied the PS4 Pro to using 36CUs to help with BC, allowing them to turn off half th GPU to mirror the PS4 GPU.
MS however with the XOX wen't bothered with that and added a GPU without the need to have to tie the CU count in any way, and not only that but moved from a RAM set up on the OG Xbox of using DDR3 RAM and a pool of ESRAM to a pool of 12GB of GDDR5 RAM.
No problem with BC for the XOX.
And again this next gen we see MS smashing Sony on BC.
Is this just Sony not caring about BC? Or do they not have the technical ability like MS to do it?
I realize MS are the software kings and have far more resources and knowedge than Sony in this area, but surely its not at that level to get BC going is it?
I mean, basically every PC game made is back compat. A new GPU comes out, the game plays on it. A new CPU comes out, it plays on it. Different card manufacturers, with different CU numbers and different clock speeds? Not a problem. Three different Pcs with different amount and types of RAM?
Not a problem. Game runs.
So what the fuck is going on GAF?
Because Sony have direct and slim GNx API which are straight to the hardware with little FAT
MS use abstract layers in DX APIs, great for multipole hardware and good for Windows PCs. which means it is much easier to do BC. This is not free, there is a performance cost.
Lets take an exacmple - Horizon zero dawn had GpGPU procedural genertion of foilage and environment, the ps4 pro performance for open world game was very good.
Try to translate that to a Windows DX12
.....but you can just vall it lazy programming or bad developer contractor if you must. But death stranding - nope that was not doing what HZD is doing....
Why do Ps5 games at 4K even this early look good with RT ? And XSX, how is that looking ?
Go figure it out for yourself, eurogamer did a article on how bad DX11 was against Ps4 for Metro, ps4 was using a few cycles, Dx11 was using hundreds to do the same thing. It got patched, but would never match ps4 efficiency.