games running slow on my laptop (ppsspp 0.81)
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07-09-2013, 03:40 AM
(This post was last modified: 07-09-2013 03:52 AM by solarmystic.)
Post: #4
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RE: games running slow on my laptop (ppsspp 0.81)
Welcome to the forums.
A lower end AMD APU like the E-450 should be able to run PPSSPP some what decently, but you should also keep your expectations in check. Some games will be fine, and others won't. PPSSPP currently only uses 1 core of your CPU so you're handicapped in that aspect, since the E-450 works best when multithreaded. Gods Eater Burst and dragon ball z tenkaichi tag team are on the higher end of the requirements, so expect to see some slowdown. If you're really desperate for some extra speed (remember, Speed and FPS are 2 different metrics for measurement in PPSSPP), you can do the following:- 1. Turn on Frameskipping and set it 1 or 3 (Odd numbers work best, Even numbers cause flickering in games) 2. Turn off Buffered Rendering (May break games that need it. A lot don't require it to work. Minor Speed boost) 3. Make sure 2xSSAA and any form of Texture Scaling is off. Anisotropic Texture filtering, however, is fine and nearly free on any modern PC. 4. Play at only 1x or 2x rendering resolution 5. Use the "Unlock CPU Clock" option in the System Settings menu, and set it to something lower (default:-222MHz), like 111MHz or even 60-80 MHz. People with lower end Android devices have reported some success in gaining more speed with that function. Warning: Lowering the CPU Clock too much will cause unpredictable behaviour within games like SPS and jerkiness. Experiment at your own risk. Also, there is a trade off between increased Speed, as you reduce the frequency, but lower internal FPS. Find a compromise you can be comfortable with. 6. Turn off all other background applications while playing games on PPSSPP 7. Update your AMD drivers. (this may not always be a good idea since newer AMD drivers have conflicts with the program as reported in the forum) 8. Ensure that Hardware Transform (massive speed boost) and Vertex Cache are ON. (They should on by default) 9. Also ensure that the emulator is running in JIT (Dynarec) mode. I also recommend that you grab the latest 64bit version of the emulator from the buildbot and read the following thread that I've written since it covers some of the weaknesses that AMD/ATI platforms (which you are using and so am I) have on this emulator with certain games:- http://forums.ppsspp.org/showthread.php?tid=4383 Enjoy your stay. PPSSPP Modern Testbed:- Intel Core i5 4690K @ 4.0 GHz NVIDIA Geforce GTX 760 2GB GDDR5 VRAM @ 1138/6500 Mhz 16 GB DDR3 RAM @ 1600 MHz Windows 7 x64 SP1 PPSSPP Ancient Testing Rig:- Intel Core 2 Duo T9550 @ 2.8GHz ATI Mobility Radeon 4670 1GB GDDR3 VRAM @ 843/882 MHz 8 GB DDR3 RAM @ 1066 MHz Windows 7 x64 SP1 |
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