Threaded Mode | Linear Mode

fivefeet8 · (This post was last modified: 07-20-2015 04:23 AM by fivefeet8.)

(07-19-2015 06:39 PM)cooliscool Wrote: I saw a post where a guy with an Adreno 330 device was running PPSSPP at full speed. The 420 is many times faster than the 330. :/

I have an HTC One M8 (Adreno 330) device and even with the High Performance CPU mode in the developer options enabled, I don't get full speed in most games I've tried at native 1080p resolutions. The videos I've seen of PPSSPP running on Adreno 330 devices have some frame skipping enabled or are running with the "Non-Buffered" mode which causes rendering issues.

From what I've seen benchmarked of the Adreno 420, it's at most 50% faster than the Adreno 330 in the Snapdragon 801 SOC. It should do better in PPSSPP, but unfortunately, from my experience using my Adreno 330 device in other emulators(Gliden64 ES3, uoYabause ES3) is still being stuck with crappy drivers. The driver overhead tests in GFXbench shows fairly well why Adreno devices are held back.

OpenGLes3:
https://gfxbench.com/compare.jsp?benchma...eld+tablet

OpenGLes3.1
https://gfxbench.com/compare.jsp?benchma...%28R%29+K1

What's worrisome is the current state of OpenGLes 3 support in Adreno GPU's. It's pretty much a mess at the moment. The HTC One M8 supports it(3.0) in hardware, but good luck getting it running properly when the the drivers are crap.