jmke

In order to find out exactly what the influence of RAM speed is on AMD processors, we put an AMD A10 5800K processor on an ASUS F2A85-V Pro motherboard and ran a number of benchmarks at various memory speeds.


The performance differences for 3D benchmarks and games, which really tax the integrated GPU, are significant. In 3DMark 11, DDR3-1866 offers almost a 12% increase in performance. In 3DMark Fire Strike it's almost 18%. In games it's even more, more than 20% in Tomb Raider, almost 25% in BioShock and Dirt and almost 30% in Hitman Absolution.

Those significant differences are limited to games, however. In CPU benchmarks like Cinebench and the TechArp x264 video encoding test it's negligible.

http://us.hardware.info/reviews/4372...d-trinity-apus

Attached Files

2013-05-15 17_15_05-Mini-review_ the effect of memory speed on AMD Trinity APUs _ Hardware.Info Unit (12.6 KB, 814 views)

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jmke

Cheapest DDR3-1333 at Newegg.com is $18/2gb stick
so building an 8gb setup would cost you $72

Cheapest DDR3-1866 kit at Newegg.com is $38/4gb kit (or $19/2gb stick)
8gb system would cost you $76


in short: go for highest rated DDR3 sticks if planning to use the integrated graphics on AMD systems. price difference between 1333 <> 1866 is negligible!

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