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Dolphin, the GameCube and Wii emulator - Forums › Dolphin Emulator Discussion and Support › Development Discussion v
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Any reason why the x64 version should be slower than x86?
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Any reason why the x64 version should be slower than x86?
03-10-2011, 11:29 PM
#1
Trevor_Z Offline
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So, I tested both 64 and 32 bit versions of Dolphin a couple of times on a newly installed Windows 7 64, to see just how faster the 64 one would be, based on past comments... and it turns out it's actually slower.

Am I doing something wrong?

I tested rev 7321 from Emu-Cr, on a Phenom II X2 555, GeForce 9600 GT GPU.

Got around 38FPS on NSMBWii with the 32bit version and 31FPS with the 64bit one.

EFB to RAM, and DL Caching on.
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03-11-2011, 01:09 AM
#2
lamedude Offline
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My guess is because you're using EFB to RAM. 64bit pointers need more bandwidth than 32bit ones which in this case is the bottleneck.
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