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AMD Trinity A10 5800K APU Review

CPU by leeghoofd @ 2012-11-21

Who hasn't heard about the following phrase? The Future is Fusion ! Unless you have been living under a rock for the last years, this AMD marketing slogan was pretty much everywhere. AMD wanted to create a platform that was mainly very affordable, where a dedicated graphics card was not a must, while being power efficient, especially for the mobile market and up to the task to satisfy our multimedia, digital desires/needs. One option already existed in the form of an integrated graphic chips solutions on the motherboard. However the latter had non-conforming performance for todays standards. This all lead to the creation of the APU, Accelerated Processing Unit. The first steps to make Fusion a reality. The FM1 socket Llano CPUs was AMD's first succesful try in this new market. As usual the competition caught up, so time for a new revision of the AMD APU. Hello world this is platform Virgo calling... Time to have a look at AMD's latest Trinity socket FM2 APU.

CPU RAM Divider Scaling

Stock tests are over, time to find out how to boost performance of our humble FM2 CPU. This without touching the CPU clock speed. Besides the CPU multiplier, which we will not touch, we can adjust the RAM divider and the NB multiplier. First focus is on the RAM divider. Not like with Intel where you have the option of a dozen dividers to work with, AMD limits it all to 2133MHz. Via HT clock you can reach higher speeds, but comparing data get's pretty difficult then. So we opted to test with the reference HTT clock of 100 and the 1600 - 1866 and 2133MHz RAM divider.

Good scaling with SuperPi, even in 1M, which is mainly raw CPU MHz, get's a nice improvement. Looking at SuperPi 32M and the AIDA results, we notice the scaling is huge going from 1600 to 1866MHz. Once we run at 2133MHz it still scales, but at a far lesser rate.

Looking at the other tests we see very very light scaling, RAM speed doesn't help the CPU much, to make it perform better.

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