G.Skill Ripjaws Z 2133CL9Q-16GBZH Memory Kit Review

Memory by leeghoofd @ 2012-02-02

G.Skill is one of the more prominent market leaders in the RAM department. Offering a zillion of different ram combinations in all sorts of quantities, timings, speeds and even you can pick between different heatspreader colors. With the launch of the SandyBridge-E platform, we received one of the higher end 16Gb quad channel kits, running at 2133Mhz. Timings are the following : CL9-11-10-28. Maybe you are not impressed, but remember this is a quad channel comprising of 4Gb dimms. And best of all the price isn't lethal at all. The X79 ram line is baptized RipjawsZ. The X lineup for the older Sandy Bridges has been renown for being potent overclockers. But most reviewed kits were only 2GB DIMM versions. So being a lot easier to push. Let's have a look if we can get some more juice out of these dimms.

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System Setup

Since this is a X79 XMP1.3 ready kit, we would have liked to maximise the ram on the already reknown Asus Rampage 4 Extreme. However Asus had sent us the Sabretooth version instead, still giving us an abundance of ram features to tune and tweak. But we are wondering if a more advanced bios/board could have unleashed some more Mhz.


  • Intel 3960X ES CPU @4500Mhz
  • Asus X79 Sabretooth motherboard 0709/0907 bios
  • Asus GTX480 GPU
  • Western Digital 1Tb Caviar Green HDD
  • CPU cooled by Corsair Hydro 100
  • Corsair TX850 PSU
  • Windows 7 Pro 64Bit SP1





We did the entire [M]Test suite with the CPU running at 4500Mhz at 1.37Vcore

The ram speeds tested are for ->

100 Bclock x 45 CPU Multiplier with rams at :

  • 1333 C9-9-9-24     1.55 Vdimm
  • 1600 C9-9-9-24     1.55 Vdimm
  • 2133 C9-11-10-27  1.65 Vdimm ( stock rated setting )
  • 2400 C10-12-11-28   1.685 Vdimm


125 Bclock x 36 CPU Multiplier with rams at :

  • 2333 C10-11-10-27   1.71Vdimm

All the above frequencies are Memtest Dlx stable for 200%, we could run our test suite with 2133C9-11-9-27. But Memtest would error out in a matter of minutes. So we dropped them results as our sample ram kit wasn't stable enough.


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