Ubisoft: PS4 CPU worse than PS3 when simulating cloth

The simulation is used in Ubisoft games, and uses 5 ms to calculate cloth movement on as many dancers as possible.

First compare results when implemented on CPU

XBox 360 – 34 dancers

PS3 – 105 dancers (SPUs!)

XBox One – 113 dancers

PS4 – 98 dancers (worse than PS3)

Final version running on GPU

XBox One – 830 dancers!

What this really shows is that the GPU of PS4 is designed to take over some work previously done by PS3 SPU and that GPUs now execute tasks traditionally done by the CPU.

Number of dancers for PS4 GPU implementation?

1600 dancers…

There is no point in having that many, time could be reduced to 2 ms = 640 dancers!