Market Positioning

Typically our market position examination is done through Newegg, although an issue comes through that the PV38G240C0K kit we are testing is not actually listed.  The alternative PV38G240C1K kit, a 2400 C11 2x4 GB kit, retails for $92 at Newegg, but our kit being tested today is more expensive than this when we look elsewhere:

Amazon.com: $116.80
NCIX: CAD$100
Amazon.co.uk: £95.92

If we take the Amazon.com pricing list, when comparing to other 2x4 GB 2400 C10 kits, we get the following:

$72: Team Xtreem LV, TXD38G2400HC10QDC01
$81: G.Skill TridentX, F3-2400C10D-8GTX
$88: G.Skill RipjawsZ, F3-2400C10D-8GZH
$88: G.Skill Trident, F3-2400C10D-8GTD
$92: Patriot Viper III, Black Mamba 2400 C11 (PV38G240C1K)
$107: Avexir Core (Blue), AVD3U24001004G-2CI
$117: Patriot Viper III, Black Mamba (PV38G240C0K)

From this list it would seem that a sub-$75 value would undercut memory kits from G.Skill, but at $117 or even $92, it does price itself out of the market somewhat.  $80 would bring it down to $10/GB, whereas $117 means $14.63 per GB.  There are better deals when buying 16 GB memory kits, in terms of cost per GB, although it comes with the added expense.

Test Bed

Processor Intel Core i7-4770K Retail @ 4.0 GHz
4 Cores, 8 Threads, 3.5 GHz (3.9 GHz Turbo)
Motherboards ASRock Z87 OC Formula/AC
Cooling Corsair H80i
Thermalright TRUE Copper
Power Supply Corsair AX1200i Platinum PSU
Memory ADATA XPG V2 DDR3-2400 C11-13-13 1.65V 2x8 GB
Patriot Viper III DDR3-2400 C10-12-12 1.65V 2x4 GB
Memory Settings XMP
Discrete Video Cards AMD HD5970
AMD HD5870
Video Drivers Catalyst 13.6
Hard Drive OCZ Vertex 3 256GB
Optical Drive LG GH22NS50
Case Open Test Bed
Operating System Windows 7 64-bit
USB 3 Testing OCZ Vertex 3 240GB with SATA->USB Adaptor

Many thanks to...

We must thank the following companies for kindly donating hardware for our test bed:

Thank you to OCZ for providing us with 1250W Gold Power Supplies.
Thank you to Corsair for providing us with an AX1200i PSU, and Corsair H80i CLC
Thank you to ASUS for providing us with the AMD GPUs and some IO Testing kit.
Thank you to ECS for providing us with the NVIDIA GPUs.
Thank you to Rosewill for providing us with the 500W Platinum Power Supply for mITX testing, BlackHawk Ultra, and 1600W Hercules PSU for extreme dual CPU + quad GPU testing, and RK-9100 keyboards.
Thank you to ASRock for providing us with the 802.11ac wireless router for testing.

‘Performance Index’

In our Haswell memory overview, I introduced a new concept of ‘Performance Index’ as a quick way to determine where a kit of various speed and command rate would sit relative to others where it may not be so obvious.  As a general interpretation of performance in that review, the performance index (PI) worked well, showing that memory kits with a higher PI performed better than those that a lower PI.  There were a few circumstances where performance was MHz or CL dominated, but the PI held strong for kit comparisons.

The PI calculation and ‘rules’ are fairly simple:

  • Performance Index = MHz divided by CL
  • Assuming the same kit size and installation location are the same, the memory kit with the higher PI will be faster
  • Memory kits similar in PI should be ranked by MHz
  • Any kit 1600 MHz or less is usually bad news.

That final point comes about due to the law of diminishing returns – in several benchmarks in our Haswell memory overview performed very poorly (20% worse or more) with the low end MHz kits.  In that overview, we suggested that an 1866 C9 or 2133 C10 might be the minimum suggestion, whereas 2400 C10 covers the sweetspot should any situation demand good memory.

With this being said, the results for our kits are as follows:

Performance Index

The Patriot kit starts with a very healthy PI of 240, which we mentioned can reach 266 when overclocked.

Overview, Specifications and Visual Inspection IGP Gaming
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  • Impulses - Monday, November 18, 2013 - link

    Ian has a pretty in depth article on this subject, look back thru the archives.

    Memory prices haven't increased as much as I thought, if at all... I bought a 1600 4x4GB Patriot kit last year, precisely around this time, it was like $55 or something with a discount (I remember not seeing any better deals around Black Friday). My first exposure to Patriot too but it's worked out well.
    Reply
  • hp9000 - Friday, November 22, 2013 - link

    I'm not so sure about that, I bought a 32gb 1866 G.Skill Ares kit in December of last year for $109.99 (I'm looking at the invoice) and now the same kit is $283.49 (newegg). That's a huge price increase in my book. Reply
  • IanCutress - Monday, November 18, 2013 - link

    You want my memory scaling article on Haswell:
    http://www.anandtech.com/show/7364/memory-scaling-...
    There are 26 different combinations of MHz / CAS there, from 1333 C9 to 3000 C12, representative of many 2x4 GB Hynix MFR kits available to purchase today.
    Reply
  • Franzen4Real - Monday, November 18, 2013 - link

    Oh great!! Thank You!! Not sure how I missed that in the first place.... Bigtime thanks for all of your time and effort on these tests!! Reply
  • djscrew - Tuesday, November 19, 2013 - link

    A (very) basic rule of thumb: 1 Cas Latency = 1 Command Rate = 1 Bump in MHz (1333/1600/1866). With the bump in MHz considered more valuable. Reply
  • dingetje - Monday, November 18, 2013 - link

    1.65 volt and higher ?
    so the haswell memory controller doesnt have a problem with voltage higher than 1.5 or will it get fried eventually ?
    Reply
  • IanCutress - Monday, November 18, 2013 - link

    Did you used to have Hyper memory on Nehalem by any chance? That combination had issues above 1.75 volts. I have not encountered any issues running memory up to 1.75v on Sandy Bridge, Ivy Bridge or Haswell. All my chips just work. Otherwise 1.65 volt kits wouldn't be selling as well as they do, and overclockers wouldn't be pushing 1.8v on air / 2.0+ volts on liquid nitrogen. Reply
  • dingetje - Tuesday, November 19, 2013 - link

    that it runs great i dont doubt....was just wondering wether on the long term the hawell memory controller will have issues (seeing the spec is 1.5) Reply
  • dingetje - Tuesday, November 19, 2013 - link

    ^haswell (typo)

    im running a 1.35v (@1.5v) crucial kit myself on haswell by the way
    Reply
  • mfenn - Tuesday, November 19, 2013 - link

    Yes, because extreme overclockers care so much about longevity. Ian, you should make an effort to get out of the extreme OC and corporate PR echo chambers once and a while. It is really having an effect on the quality of your articles. Reply

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