Guide:- Maximizing the performance of PPSSPP on your Android/Windows device.

[solarmystic]

(08-02-2013 04:33 AM)Ritori Wrote:  I read somewhere that Read Framebufers to Memory (GPU) give some speed on Nvidia card :o

Only if you're forced to use Read Framebuffers to Memory option at ALL.

1. If a game needs it (like Danganronpa)

Read Framebufers to Memory (GPU) > Read Framebuffers to Memory (CPU)

2. If a game DOESN'T need it (like most other games), the performance hierarchy is as follows (from fastest to slowest)

1. Non Buffered Rendering

2. Buffered Rendering

3. Read Framebufers to Memory (GPU) (very slow)

4. Read Framebuffers to Memory (CPU) (even slower)

The speed difference between Buffered Rendering and Read Framebuffers to Memory (GPU/CPU) is very, very massive.

On my listed rig in sig, a particular scene in Danganronpa benches at 385 VPS with Buffered Rendering. It benches at only 282 VPS with Read Framebuffers to Memory (CPU), losing 100 VPS in the process. However, since the game requires Read Framebuffers to Memory (CPU) to be ON, I have to eat the loss of performance, and it is still acceptable for me since it is way above 60 VPS anyway.

What about mobile devices?

My guide is meant for maximum performance, which means that you SHOULD NOT be using ANY Read Framebufers to Memory option if you are desperate for speed. At all. Unless absolutely necessary.