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.

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CPU NB Scaling

With our A10 5800K sample we were able to maintain a rock steady 2400MHz NorthBridge clock. In fact a tiny bit higher then the 2380MHz RAM speed we could do on air ( 2133MHz RAM Divider and  HT OC). With the setup running at stock speeds/settings, the NB speed is set at 1800MHz. By selecting a higher ratio we tested 2200MHz at 1.275NB voltage and 2400 at 1.35 CPU NB voltage.

SuperPi 1M, due to it's rapid measurement usually only scales with raw CPU MHz. Yet on AMD the NB speed has a big influence. Shaving off 3 tenths of a second. In the longer 32M test the extra NB speed boild down to a 10 second faster run.



Bandwith increases big time with a higher NorthBridge frequency, close to 2K per test. In fact the tweakability of AMD CPUs  is what makes them so much fun to set up. Intel has made it a bit too easy with Sandy- and Ivy Bridge, you can configure them for a 24/7 setup in under 10 minutes. With AMD you can experiment a bit more, look for the edge, finding compromises in settings.




While the other tests scale nicely each time we upped the NB multiplier in the bios, Cinebench continues to pump out scores within the margin of error. Not much to see here. The X264HD encoding tests, also more CPU MHz minded scales lightly. WinRAR get's a light improvement too, but nothing earthshattering.




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