So conclusion of the OC'ed test : to get good peformance you need at least to clock it up at 4.5Ghz to be competitive with other CPUs. The tests on the previous page were run with 4Gb of Corsair Dominator GT rams running at 1600hz CL8. Interesting as always when a new platform arises, is to see what it needs to achieve best performance. Let's take a closer look at the RAM dividers. We selected the following dividers :
- 1333Mhz CL8-8-8-24 1T
- 1600Mhz CL8-8-8-24 1T
- 2133Mhz CL8-8-8-24 1T
This to get an idea if there's an absolute minimum ram speed required to get good performance. And to check whether high speed rams or even overclocking your kit is really beneficial. CPu is run at stock speeds , just the different ram divider selected.
Our SuperPI 32M test shows how it's done. The more ram speed the merrier. The gain at 1866Mhz is really big. Going from 1866 to 2133 still scales but on a lesser scale. 1133Mhz ram to be avoided at all cost.
AIDA tells the 32M tale. A big bandwith increase going from 1333 to 1600Mhz. Selecting 1866Mhz will jield a similar or slightly better bandwith improvement. Upping to 2133Mhz will only benefit in the Read department.
The X264HD encoding test scales so nicely with extra ram speed. Gaining close to 3 FPS is nothing to be overlooked and could save an encoder some precious time.
Repetiveness in full action. Futuremarks 3D tests and the two tested games below ( selected as they are known to scale with extra ram speed ) benefit nicely from the Mhz. Similar as with Intels SandyBridge platform, this is as easy as selecting a divider in the bios, save and reboot and you are done...
As you can see the 2400Mhz divider is missing. One as our Corsair GTX2s don't do 2400mhz at CL8, secondly I hardly think anyone will run 2400mhz daily. We quickly tested it with G.Skill RipjawsX dimms and got 2400Mhz stable at CL8-11-8-27 1T at 1.675Vdimm. Yet the gain over 2133Mhz with the Hyperkit wasn't that big. At first we had tried CL9-11-9-27 at 1.65Vdimm. Passed with no problems. then tightened the timings and the gain was close to zero. So either the architecture is completely saturated at 2400mhz, or the early bios is not up to scratch.