The whole 'fastest memory' halo product race is a bit of a farce.  In terms of DDR3, Corsair started the race back in 2007 with their first set of Dominator modules, running at 1600Mhz, 10-8-8-24.  This has been followed and bested, mainly by Corsair, but with sneak appearances by Kingston, G.Skill and Patriot (see below).

Available as single sticks from the Corsair website, these new GTX4 modules will set you back $325 for each 2GB stick.  With rather slack timings of 9-11-10-30 at 1.65V, each module is handtested using a Core i7 Lynnfield CPU on a Gigabyte P55 motherboard.  Michal Nowicki, Corsair's inhouse overclocker, advises that 'most CPUs will require sub-ambient cooling to run [these modules] at their maximum speed'.

Despite the lifetime warranty and the ability to boast about a 'halo' product, I can't see a point in these sticks - even for overclockers.  With such slack timings to begin with, I wonder just how much headroom is available, when other 2400+ kits with better timings are available.  At $325 a stick, you really are shooting yourself in the foot.

But alas, these modules will sell, and Corsair know they will.

A brief (and abridged) history on the latest and greatest memory is summarised below:






 Jun '07





 Jun '08





 Dec '09


 Dominator GTX



 Jan '10


 Dominator GTX1



 Mar '10





 Apr '10





 Apr '10


 Viper II



 May '10


 Dominator GTX4



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  • jav6454 - Friday, May 7, 2010 - link

    2533 MHz on memory?

    However those crazy CAS numbers will make it look as if it were ~2000 MHz. True CAS Latency matter little every upgrade, but it counts sometimes for up to 5fps....
  • mfenn - Friday, May 7, 2010 - link

    Well, remember that those numbers are only the effective clock rate. It really runs at 1266MHz.
  • wifiwolf - Friday, May 7, 2010 - link

    That last entry is just laughable.
    Probably you could do the same with any of those other three modules by increasing latencies to match it.
  • emmjay28 - Friday, May 7, 2010 - link

    Kingston is still the fastest Intel-certified at 2400MHz with a dual channel kit on a Core i7 Lynnfield. Let's see if Corsair can get these certified, as a pair of DIMMs, and whether they can deliver them to customers.
  • marraco - Saturday, May 8, 2010 - link

    We don't need more mhz. We need lower voltages.

    My 1600 modules are running at 1200, 1.5 v, because the increased voltage, since the memory controller is integrated in the i7, increases also the temperature, limiting the overclocking capability of the processor.

    Being able to undervolt the memory controler (thus, the memory modules), enable higher clocks for the processor,which have far more impact in performance.
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  • xinxin - Friday, August 31, 2012 - link

    Nice website.good article.
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