Six Low-Voltage Dual-Channel 8 GB Memory Kits, Overclocked

By Thomas Soderstrom
published

We've abided by Intel's 1.55 V recommendation for two architectures and two die shrinks, yet most performance memory manufacturers ignore it. Recent problems with one of our builds raised the question, how far can we push RAM without killing CPUs?

Kingston HyperX Genesis DDR3L-1600

Kingston’s $70 KHX1600C9D3LK2/8GX dual-channel kit features both DDR3L detection and XMP, both providing DDR3-1600 values. Other features depend on the board into which they’re installed.

For example, motherboards that support DDR3L will automatically configure these to DDR3-1600 at 1.35 V, while those that don’t support the low-voltage standard will set the same frequency and timings using 1.50 V. XMP likewise provides a DDR3-1600 1.35 V profile, regardless of whether the board detects DDR3L capability. The big difference is that XMP is required to reach the memory’s CAS 9 rating without lengthy manual configuration, as other detection modes yield a much looser CAS 11 timing set.

Platforms that don’t support DDR3-1600 will default to DDR3-1333 CAS 9.

Kingston DRAM includes a limited lifetime warranty.

Thomas Soderstrom
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.
38 Comments Comment from the forums
  • excella1221
    Nice article.
    A bit surprised that Corsair Vengeance didn't make an appearance though.

    Been using G.Skill RAMs since I can remember, and they've never failed me!
    Reply
  • DarkSable
    Very interesting read, thanks Tom's! Guess we've been bothering you enough about, erm, "half-height" overclocker's ram enough for you to want to do an article on it. Shame that the mystery modules chose not to participate... perhaps I'll send you my 8 gigs. Want to swap? Ship me some ram to use in the mean-time and I'll ship you my sticks.
    Reply
  • rmpumper
    In other words, RAM speed is irrelevant if you are not using an APU.
    Reply
  • Haserath
    No power consumption numbers? :/
    Reply
  • cobra5000
    Good testing but at the start of the article, much emphasis was placed on the degradation of the cpu due to high memory voltage and then it just turns into a memory speed test. What about the cpu degradation?
    Reply
  • envy14tpe
    Good article. Still left wondering why anyone would choose low voltage RAM when costs do not outweigh the benefits.
    Reply
  • slomo4sho
    It is only worthwhile to pickup low voltage ram if you can obtain it at the same price as 1.5v ram. Then again, the Ballistix is around the same price point as other similar timing ram.
    Reply
  • allan_hm
    Pointless analysis for too little performance AND price difference...
    Would be a bit less irrelevant if more brands were tested.
    To be honest I was more interested on that "dirty little secret" details than the test itself.
    Also, an article named "who is who in the RAM marked" would be awesome, just like that one about Power Supplies...
    Reply
  • Crashman
    excella1221Nice article.A bit surprised that Corsair Vengeance didn't make an appearance though.Been using G.Skill RAMs since I can remember, and they've never failed me!Here's from the article:
    We invited every major manufacturer (including a crowd-favorite ODM) to this round-up, and a few (including that ODM) chose not to participate.
    Corsair said they had some new modules coming out and didn't want to focus on older models.cobra5000Good testing but at the start of the article, much emphasis was placed on the degradation of the cpu due to high memory voltage and then it just turns into a memory speed test. What about the cpu degradation?What about it? It's never been seen at 1.50V.
    Reply
  • Crashman
    allan_hmPointless analysis for too little performance AND price difference...Would be a bit less irrelevant if more brands were tested.To be honest I was more interested on that "dirty little secret" details than the test itself.Also, an article named "who is who in the RAM marked" would be awesome, just like that one about Power Supplies...Article intent was to find modules within Intel's 1.55V limit that pulled top numbers in frequency and/or latency. Some were found, article is a success.
    Reply