Corsair’s latest SO-DIMM kit takes 32 GB of DDR4 to 4000 MT/s

As computing moves to ever-shrinking desktop form factors, slow 2133 MT/s and 2400 MT/s DDR4 memory becomes less acceptable. Folks who demand the absolute top performance from their systems can't neglect memory performance, but until fairly recently there just weren't many high-performance SO-DIMM kits. Corsair is among the companies turning that around, and the nautically-named group just released what it says is the fastest 32 GB DDR4 four-stick SO-DIMM kit ever at 4000 MT/s.

There aren't many systems using SO-DIMMs that can even run their memory at that screaming speed—much less four sticks' worth. Corsair remarks that this kit is specifically intended for small-form-factor machines based on Intel's X299 platform using motherboards like ASRock's X299E-ITX/ac. The company describes the RAM's 19-23-23-45 timings as "super tight," and remarks that the sticks will need to run at 1.35 V to do their thing.

As Corsair itself points out, 4000 MT/s is well into the range of overclocking for DDR4 memory. The company says it hand-picks the best Samsung B-die chips for these sticks. Dedication like that should help guarantee reliability, but it also means these modules aren't going to go cheap. The memory is currently only available at Corsair's site, and it'll run you $595 for the four-module kit.

Comments closed
    • LoneWolf15
    • 2 years ago

    Maybe useful if you have a tweakable gaming laptop or specialty ITX board.

    Useless with 90-95% of the gear out there.

    Still happy I managed to trade gear for my 32GB DDR4 Mushkin laptop kit. And that my buddy Dposcorp had the RAM. =)

    • TwoEars
    • 2 years ago

    To compare real world speeds of ram you can use:

    CAS Latency / MT/S

    So 19 / 4000 = 0.00475

    For comparison a more “normal” stick will have perhaps:

    15 / 3200 = 0.00469

    Not that much in it and a lot of this is marketing. Just like the peak performance numbers on SSD’s when if fact you probably should be looking at the 4k performance.

      • Firestarter
      • 2 years ago

      there’s some CAS 15 3600 MT/s RAM too that’s pretty affordable, should be roughly as fast as these very high clocked modules: [url<][/url<]

      • Shobai
      • 2 years ago

      You’re almost getting to what Crucial calls ‘true latency’ there – we’re discussing DDR, so halve the MT value in order to get MHz. Might as well rescale to ns for readability while we’re going:

      ‘true latency’ (ns) = 2000 * CL / MT

      Even so, that only tells part of the story; faster MT ratings can mean higher bandwidth [entirely dependent on the IMC in question converting on that performance potential]. Some tasks will benefit more from improved latency, others from higher bandwidth.

      [url=<]The first thread I found on Gookle[/url<] - I haven't read it, but it has some pretty graphs! Check out that Overwatch one, for instance. [edit: found the link I wanted - [url=<]Corsair[/url<] has some data from the transition from DDR3 to DDR4, across both the mainstream and HEDT Intel IMCs]

    • DPete27
    • 2 years ago

    Just a “me too” to the G.Skill 3800 MT/s kit. But THAT PRICE. Holy smokes. Memory companies would be better off focusing on selling decent speed (say 3000 MT/s) SO-DIMM kits to foster adoption of SO-DIMMs on desktop mobos. Then they’ll actually have a viable market to sell these high speed kits to.

      • Chrispy_
      • 2 years ago

      They’re making 20-30% profit on their competitively-priced 2666MHz kits, and they’re making 200-300% profit on these silly halo kits for the desperate people who think the fastest SODIMMs in the world are going to give them a significant gaming FPS boost.

      The reason they’re jumping on this bandwagon is because it requires minimal effort for maximum product, and of course PCMR L337 G4M3RZ brand recognition. Like, ours go to 11.

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