Memory Frequency on AMD Kaveri APU

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VSI2110

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Jun 9, 2015
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I was looking forward to some High speed Memory for my AMD A10-7850K.
i got my eyes on 2x4gb of Corsair's vengeance Pro series! but confused with either 2133mhz or 2400mhz.
to be noted that the 2133mhz one is a little cheaper, and i was wondering if i could get this particular one stable at 2400mhz(OC)??
or to go with the 2400mhz instead??
thanks.
 
Solution
bootcher
The A10's offcially support up to 2133 mhz ram. They can go higher with manual settings or using xmp profile. Usually you can set them higher but your cas latency will also be higher thus negating the higher clock. You should get the one that is faster when taking the the cas latency into account, for instance:
2133 mhz, cas latency 10 = 10/1066.5 (*1000)=9.376
2400 mhz, cas latency 11 = 11/1200 (*1000)=9.1667
( since the memory is ddr, the actual frequency is half, hence half the listed frequency is used in the calculations)

So in this case the 2133 is actually faster.
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bootcher

bootcher

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Feb 22, 2013
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The A10's offcially support up to 2133 mhz ram. They can go higher with manual settings or using xmp profile. Usually you can set them higher but your cas latency will also be higher thus negating the higher clock. You should get the one that is faster when taking the the cas latency into account, for instance:
2133 mhz, cas latency 10 = 10/1066.5 (*1000)=9.376
2400 mhz, cas latency 11 = 11/1200 (*1000)=9.1667
( since the memory is ddr, the actual frequency is half, hence half the listed frequency is used in the calculations)

So in this case the 2133 is actually faster.
 
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