- Pronouns
- He/Him
PS4 ratio should be around 95GB/s, while PS4 Pro should be ~52GB/s.what was the GB/s bandwidth ratio for PS4 and PS4 pro again?
Switch was definitely punching above its weight too for multiplatforms. It's too bad we'll never know how much 50 GB/s could have helped it. I think it was Z0mbie who said maxwell/turing graphics cards had 50 GB/s VRAM, and they were going toe to toe with Xbone/PS4
All this means is that relative to the FP32, PS4 had that memory bandwidth sufficient to support the system per second per TFLOP, it still delivered 176GB/s, but per TFLOP and for the GPU, we are only looking at the ratio. Does not mean that the switch NeXt will not be memory bandwidth starved.
This does not account for the fact that the PS4 CPU and PS4 Pro CPU use about 20GB/s if I remember right from a slide… but anyway, accounting for that, PS4 is ~84-85GB/s and PS4 Pro is ~47GB/s.
I’ll edit this post when I find that slide….
Actually, I’d like @oldpuck ’s opinion on this idea: measuring the memory bandwidth not with TFLOP, but number of SM/WGPs that a system/card has and comparing it there.