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Question by
ShirleyXiao · Jul 25, 2012 at 03:17 AM ·
iphoneperformanceiphone4
Lagging on iphone 4 while worked well on iPhone 3GS and 4S
When I built my game on iphone 3GS and iphone 4S, it worked well, but why is it lagging on iphone 4? I know that iPhone 4S is better than iphone 4, but it worked well too on 3GS.. I'm so confused why it has happened?? Anyone have idea? Thank you...
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Best Answer
Answer by Eric5h5 · Jul 25, 2012 at 04:05 AM
The iPhone 4 has 4X as many pixels as the 3GS, but the same graphics chip. The iPhone 4S has significantly upgraded graphics which can actually handle that resolution.
thank you very much.. ^^.. but do you know how to improve the performance in iphone 4??
The usual ways when the GPU is the bottleneck...reduce resolution, do less work per pixel ($$anonymous$$imize overdraw, reduce/eli$$anonymous$$ate pixel lighting, faster shaders).