Neo can aim at console setting quality@ 60fps.The 480 also has 256 GB/s of memory bandwidth dedicated to the GPU alone. Even if the PS4's memory bandwidth spec was raised to match this, you would still have to deal with memory contention with the CPU lowering the available bandwidth for the GPU. At those numbers (5.8 TFLOPS and 4.2TFLOPS) doing some quick and dirty math indicates that the Neo RAM spec overprovisions the memory bandwidth needed to support that number of TFLOPS by ~30 GB/s to account for the effects of memory contention with the CPU. You can't look at any individual spec in a vacuum. Every tweak to any one parameter effects the design of every other aspect of the system.
If so, wouldn't that be a case of using an existing part for now to substitute with the intended part for release. Should be fairly straightforward to find a suitable AMD part of the same 4.2 TF.We have several examples of upgrading specs of development kits, so it's not strange that 4.1TF of PS4 NEO will be increased.
Neo can aim at console setting quality@ 60fps.
Digital foundry often uses a 750ti with only 88GB/s bandwidth and it can run console quality graphic at 30fps or above.
What if the 4.2TF neo dev kits are just placeholders until they can get GDDR5X?
1) We're talking software. The elite software solutions of the past won't be happening again in games.
2) The costs of development of a custom GPU to do the same job as a commodity part makes for poor economy. All the custom hardware of the past was to deal with specific problems. And what customisation will you add? What does a fully programmable, high performance GPU need to produce rasterised graphics better? If you go wtih something new like raytracing, devs need to write custom engines just for your machine and you make devs lives hell and risk alienating them in the multiplat market.
So custom hardware means:
i) More cost
ii) More complexity
iii) Less enthusiastic developers
(iv) likely little gains over a commodity GPU)
Why bother?
If you go wtih something new like raytracing, devs need to write custom engines just for your machine and you make devs lives hell and risk alienating them in the multiplat market.
- I predict 5.5 TFLOP and improved memory bandwidth above the 218 circulating around.
There are 2 options with Neo...I'm pretty sure SOny will go with the more powerful option...
I though gddr5x got less available ram out the same chip qty so it's it's 8gb now on gddr5 that would be 6 on gddr5x unless they add more chips onto the motherboard.
I may be totally wrong but that is the impression I got from the Scorpio thread.
Anyhow Microsoft seemed also very confident that Sony did not have the lead everyone saw in the specs before launch, and we saw exactly that difference once launched.
If you are going to believe the rumors, believe it completely not just the bits you like. Option B Neo costs too much.I just hope the "option B" Neo will not cost too much.
If you are going to believe the rumors, believe it completely not just the bits you like. Option B Neo costs too much.