| Soundwave said: This isn't really a secret breakthrough or anything. The Xbox Scorpio and even the Nintendo Switch will be able to do the same at FP16/32 |
It's an extra improvement over ps4 which apparently couldn't do it yet
"Finally, there's better support of variables such as half-floats. To date, with the AMD architectures, a half-float would take the same internal space as a full 32-bit float. There hasn't been much advantage to using them. With Polaris though, it's possible to place two half-floats side by side in a register, which means if you're willing to mark which variables in a shader program are fine with 16-bits of storage, you can use twice as many.
But true, Nvidia tegra x1 already supported double speed fp16 and Scorpio will use Polaris as well.
Nintendo switch and PSVR can probably benefit more from it than ps4 pro and Scorpio. Lower screen res and no HDR require less precision. At 4K res and HDR you'll notice rounding errors much sooner. PS3 and 360 should have had this, bit late now.
