| KratosLives said: We know ps5 has cache scrubbers to free up resources,also AMD smartshift, we don;t know if series x implements it. Can someone explain how vrs is different than partially resident textures technology back from 2011. |
Smartshift isn't going to be needed for the Xbox Series X.
Smartshift is essentially a technology that dynamically allocates power to the CPU or GPU on a per-needs basis, so if the GPU is being pegged and a developer asks for it, more energy can be funneled to the GPU rather than the CPU in order to bolster clockrates.
It's not needed on the Series X because Microsoft guarantees it's clocks.
Variable Rate Shading is a technique that reduces the shading quality where there is allot of movement/blur or where the eye isn't going to be focusing on in order to increase performance.
I.E. There is no point having a material shader on the road in the bottom left corner of the screen when your car is moving so fast that it blurs it anyway.
Partially Resident Textures is AMD breaking down the textures into smaller tiles and only loading the higher quality tiles when necessary to save on memory/performance... Think of it as an extension and evolution of Megatexturing in Rage, but also done entirely in hardware.
| hinch said: How about using some research first before attacking other people. With PS4 Sony showcased their architecture and they introduced ACE (Asynchronous Compute Engine) units from their GCN based GPU which eventually made its way into AMD's next cards. Rapid-Packed Math (or FP16) on the PS4 Pro made its way into AMD's VEGA lineup a year later. |
Graphics Core Next had ACE units before the Playstation 4.
The Playstation 4 just increased the number of them, AMD desktop GPU's eventually followed that paradigm.
As for FP16/Half Precision... AMD's first GPU with that support was actually the Radeon R9 285 which beats the Playstation 4 by a couple years.
AMD wasn't packing two FP16 operations together though it was single rate, that didn't happen until Vega, but this was a path that AMD was always heading down.
Either way, Rapid Packed Math and the ACE units aren't a Sony invention, Sony and Microsoft probably are not allowed access to the low-level architectural ISA of AMD's GPU's due to patenting and security. - They can work closely with AMD and suggest ideas/improvements for their semi-custom designs, but that will probably be it.
AMD, Intel or nVidia having one of their designs leaked would absolutely be catastrophic, especially if China or some sorts managed to nab the design.
We also need to keep in mind that it takes many many years for a GPU design to happen, AMD and nVidia actually have multiple development teams who iterate and refine their designs so that we get improvements on a yearly cadence, thus many design goals (I.E. ACE units and Rapid Packed Math) would have been on the development pathway for years before Sony or Microsoft ever came along.
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