The below benchmarks were done using our regular testbed of Intel Core i7-2600K on a Gigabyte P67A-UD7 with a Zotac GTX 580 AMP! Edition; a Western Digital VelociRaptor 300GB HDD running Windows 7 Ultimate provided the basis and all of this was powered by a Cooler Master 1200W Silent Pro Gold PSU.
I specifically used SiS Sandra 2011’s Aggregate Memory Performance benchmark as it gives a realistic representation of bandwidth usage. For testing the G.Skill RipjawsX DDR3-2133 I’ve compared it against the Kingston HyperX DDR3-2133 reviewed earlier this year.
As you can see the RipjawsX has a significant advantage at default settings, i.e. the speeds of 1600MHz compared to 1333MHz obviously give it an upper hand. Meanwhile the overclocking results also yielded a better result than the Kingston HyperX DDR3-2133 memory kit, and that too at significantly lower voltage.
The only drawback to the G.Skill I see is the fact that you cannot achieve rated speeds with four DIMMS, and therefore will have to go with their own 8GB kit, which is roughly $50 more than buying two 4GB kits. To be fair, it does come with the Turbulence II fan, but having not tested its effectiveness, I can’t say whether it’s worth it or not.
What I can say for sure is that G.Skill RipJaws X DDR3-2133 is one hell of a memory kit. Priced aggressively, this 4GB memory kit achieves rated speeds with absolute ease, and the voltage is also at a comfortably low level. The low profile heatsinks also mean that the RipJaws X will be friendly with some of the newer CPU cooling solutions which usually end up eating the first (and sometimes even second) ram slots.