Windows 7 starter edition runs fairly well on 1 GB.
Take win 7 and strip out the things that aren't needed for a console and your OS will probably only use 512 MB too.
That 1GB is the minimum memory required, not the recommended memory.
Starter is a 32bit OS. The minimum memory required for a 64bit Windows 7 is 2GB. Recommended for 64bit is something as 4GB.
Fixed it for you.
PS4-GPU x 2 (API overhead) + HSA + hUMA + GDDR5 + close-to-metal ~ 1.8TFLOP
No matter how close the metal you can program, the absolute maximum performance of system does not increase.
Good point, but misses the point entirely. We are
not estimating how maximum performance can be bypassed, because this is
impossible, evidently. We are doing something different.
We are estimating how the
maximum performance of the console compares to maximum performance on a PC. Therefore the 'fix' looks more like
PS4-GPU x 2 (API overhead) + HSA + hUMA + GDDR5 + close-to-metal ~ 9 TFLOP
on PC
Of course, this is a sloppy way to
write it, because a TFLOP is always a TFLOP: was a console, a PC, or otherwise. Therefore, before someone come on with some irrelevant comment of this kind, just repeat the estimation in the other way. Start from a PC with a
maximum performance of 9 TFLOP and subtract performance from API overhead, from lacking hUMA and HSA, from lacking direct access to hardware...
9 TFLOP - 2x_API_overhead - HSA - hUMA - GDDR5 - close_to_metal ~ 1.8 TFLOP
which is the PS4-GPU performance.