Does PPSSPP use gpu to boost speed?

[TheDax]

When you use software rendering, PPSSPP doesn't use any GPU at all, not even an oboard one, and not even an on-die CPU one, so the speed drop will be dramatic (50% speed loss or more, depending on the game, how fast your CPU is, etc.). It uses the CPU entirely. But yes, dedicated GPUs will give better performance than integrated ones. Don't buy a GTX Titan just for emulation though; the CPU matters most.