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G.Skill RipJawsZ 16GB 2400mhz X79 memory (F3-19200CL11Q-16GBZHD)

The G.Skill RipJaws Z 16GB 2,400mhz is a stunning memory kit, capable of delivering over 50 GB/s of bandwidth – the first in fact we have tested to break this elusive figure. This record was previously held by the Corsair GTX8 8GB kit which we tested on X79 launch day. G.Skill have taken top spot in our performance results, and have also doubled the capacity to 16GB, which in itself is worthy of note!

The Corsair GTX8 memory is undoubtedly the supermodel of the memory world, with beautiful oversized, red heatspreaders immediately demanding attention. The G.Skill Ripjaws Z 16GB kit is certainly more reserved in appearance, with a modest, smaller heatspreader design. That said, this can have secondary, installation benefits, as when pairing up with physically oversized CPU heatsinks, such as the Noctua NH D14.

G.Skill supplied our kit with two dual fan memory cooling units which may come in useful, however we prefer to use two high quality 120mm fans, adhered (manually) to the top of the heatspreaders. Noise emissions are lower, and the cooling efficiency is higher as they allow for a wider cooling radius.

We wouldn’t expect this memory to overclock significantly higher, but we did manage to push to 2,500mhz while tightening up some of the timings. It isn’t a basic settings change, as we need to boost the voltage a little, and loosen the RAS to CAS delay a little, but it is possible with some time and effort.

If you are fortunate enough to invest in a new X79 system build, and need more than 8GB of memory, then the G.Skill RipJaws Z 16GB 2,400mhz is a new performance leader.  UK pricing has yet to be confirmed, but we have received early indication that this specific kit should cost around the £250 inc vat point.


  • Stunning performance.
  • Good value for money.
  • even more headroom in the right hands.


  • Appearance is a little bland.

Kitguru says: If you need some of the fastest memory on the planet without spending a fortune, these are a ‘must have’.

Rating: 9.0.

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