Market Positioning

As mentioned before, at current prices ($230 direct from Corsair) these modules will have a tough time in the turbulent memory market.  On 12/10, the current prices for similar 2x8GB DDR3-2400 C10 memory kits were as follows (prices taken from Newegg except for the kit in bold):

$150: Team Xtreem LV DDR3-2400 C10 2x8GB 1.65V
$175: G.Skill TridentX DDR3-2400 C10 2x8GB 1.65V
$177: Avexir Core ASUS Z87 DDR3-2400 C10 2x8GB 1.65V
$177: Avexir Core MSI Gaming DDR3-2400 C10 2x8GB 1.65V
$177: Avexir Core MSI OC DDR3-2400 C10 2x8GB 1.65V
$230: Corsair Vengeance Pro DDR3-2400 C10 2x8GB 1.65V
$280: Corsair Dominator Platinum DDR3-2400 C10 2x8GB 1.65V

If we move down to 2400 C11 memory kits, the situation looks even worse for the CMY16GX3M2A2400C10R:

$150: Silicon Power XPower DDR3-2400 C11 2x8GB 1.65V
$150: Mushkin Enhanced Blackline DDR3-2400 C11 2x8GB 1.65V
$150: G.Skill Ares DDR3-2400 C11 2x8GB 1.65V
$155: Mushkin Enhanced Blackline DDR3-2400 C11 2x8GB 1.65V
$154: G.Skill RipjawsX DDR3-2400 C11 2x8GB 1.65V
$200: Patriot Viper 3 DDR3-2400 C11 2x8GB 1.65V
$200: ADATA XPG V2 DDR3-2400 C11 2x8GB 1.65V (Gold)
$200: ADATA XPG V2 DDR3-2400 C11 2x8GB 1.65V (Grey)
$220: Corsair Vengeance Pro DDR3-2400 C11 2x8GB 1.65V

For the sake of argument, looking up the chain at 2600+ C11/C12:

$205: G.Skill TridentX DDR3-2666 C12 2x8GB 1.65V
$230: Team Xtreem DDR3-2666 C11 2x8GB 1.65V
$270: G.Skill TridentX DDR3-2666 C11 2x8GB 1.65V
$320: ADATA XPG V2 DDR3-2600 C11 2x8GB 1.65V
$320: ADATA XPG V2 DDR3-2600 C11 2x8GB 1.65V
$320: Corsair Dominator Platinum DDR3-2666 C11 2x8GB 1.65V

There seems to be a bit of a dichotomy going on: some companies are on the high side of the price ranges continuously, whereas others are consistently on the low side.  Any way you slice it, the 2400 C10 kit from Corsair in this review is too expensive, especially when a similar specification kit is $80 cheaper.

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
ADATA XPG V1.0 DDR3L-1600 C9-11-9 1.35V 2x8 GB
Corsair Vengeance Pro DDR3-2400 C10-12-12 1.65V 2x8 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 OCZfor providing us with 1250W Gold Power Supplies.
Thank you to Corsairfor providing us with an AX1200i PSU, and Corsair H80i CLC
Thank you to ASUSfor providing us with the AMD GPUsand some IO Testing kit.
Thank you to ECSfor providing us with the NVIDIA GPUs.
Thank you to Rosewillfor providing us with the 500W Platinum Power Supplyfor mITX testing, BlackHawk Ultra, and 1600W Hercules PSUfor extreme dual CPU + quad GPU testing, and RK-9100 keyboards.
Thank you to ASRockfor 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 sweet spot should any situation demand good memory.

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

Performance Index

From the data in our memory overview, it was clear that any kit with a performance index of less than 200 was going to have issues on certain benchmarks.  The Corsair kit has a PI of 240, which is at the higher end of the spectrum.

Overview, Specifications and Visual Inspection IGP Gaming
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  • UltraWide - Friday, December 13, 2013 - link

    On this page:

    What are the exact voltages each timing/subtiming? You only list the subtimings and peak MHz, but no voltages.
  • JoannWDean - Saturday, December 14, 2013 - link

    my buddy's aunt earned 14958 dollar past week. she been working on the laptop and got a 510900 dollar home. All she did was get blessed and put into action the information leaked on this site...
  • teiva - Thursday, January 2, 2014 - link

    My pet cat's been earning $14823 a month just by eating Whiskas biscuits dipped in cream from albino goats that only sleep in a northerly direction lol
  • jeffrey - Friday, December 13, 2013 - link

    Ian Cutress,
    Hello! This is another article stating 1866/C9 being the minimum for Haswell and to avoid 1600 or less. Even going so far as to say, "Any kit 1600 MHz or less is usually bad news."

    However, this ignores 1600/C8 modules. The 1600/C8 score a 200 on your Performance Index at stock timings. This is at your recommended 200 level. There are several kits of 2x4 GB 1600/C8 on Newegg that have memory profiles of 8-8-8-24 at 1.5v. I'll repeat, these 1600 8-8-8-24 1.5v kits score 200 on the Performance Index and hit the current memory sweet spot for most people of 2x4 GB. This scores within around 3% of the 1866/C9 kits which have a Performance score of 207.

    The reason I bring this up is that the 1600 8-8-8-24 kits are often less expensive than the 1866/C9 kits and offer essentially all of the performance.

    I enjoy reading your articles and appreciate how active you have been lately!
  • jeffrey - Friday, December 13, 2013 - link

    Here is an example of a great value for a 2x4 GB kit. This item has 500+ positive reviews and normally sells out when it goes on sale (as it is now).

    1600 MHz 8-8-8-24 1.5V
  • fractal9 - Friday, December 13, 2013 - link

    Where in the article does it state this? These days I want the most compatibility and reliability, and that means being in the JEDEC standard and at 1.5v. I don't care about a few extra fps or synthetic performance figures, I'll save my $80 and enjoy increased stability.
  • Senti - Friday, December 13, 2013 - link

    "we are not going to set any records" with tRFC at 10? lol, sure we would! Do you actually understand the timings you are writing about? Real tRFC is the line above where the numbers are near 300. Now we have huge table of timings that is totally useless because we can't trust it at all...

    Btw, your spam filter is awful – looks like it blocked my (dynamic) IP for unknown reason.
  • Hairs_ - Friday, December 13, 2013 - link

    Oh dear god. Not this again. It is time for a thorough debunking, based on the data presented, because clearly it is not going to stop.

    Established from Anandtech's own testing data:
    There is no distinguishable, patternable difference between 8GB and 16GB memory kits. In some cases, there is a swing one way or the other, but nothing is consistent.
    I think that most enthusiasts would recommend, if asked by a friend on a midrange budget, a 1600 8gb kit. The lowest price for that at C9 timings on newegg is $55. Not the $150 - 250 being bandied about for these moronic kits.

    An 1866 C9 16GB kit comes in at ~$115. (It is safe to assume that *some* kit will always be on offer.)

    So let's look at the conclusive data:

    From all the graphs, we can conclude the difference between the Best "stupid" kit and a reasonable 1600 c9 kit is:

    Average 2.78%
    Max 13.27%
    Min 0.00%

    The best results for the stupid kits are:
    13.27% running Explicit Finite Solver (3d only, the 2d result was 3.3%) on an IGP. Anyone running this is not using an IGP to do it, I suspect.
    12.91% on USB3 copy. The page for those results states they are pulled from the Motherboard reviews, so there's no indication this speed isn't motherboard specific rather than memory specific (as some AsRock boards have USB boost which allegedly seems to work). One result on this same test had a 34.55% lead, but it had the same lead (or larger) on "faster" kits than the 1600 kit, so I am treating this as an outlier.

    The vast majority of the results are just not in the stupid kit's favour.

    Test Difference Best Stupid Kit 1600 C9 Kit Testing
    Graph 1 5.67% 12.86 12.17 IGP
    Graph 2 1.66% 9.2 9.05 IGP
    Graph 3 4.65% 9 8.6 IGP
    Graph 4 1.29% 105.39 104.05 Direct
    Graph 5 1.47% 62.94 62.03 Direct
    Graph 6 1.28% 47.4 46.8 Direct
    Graph 7 0.41% 49.55 49.35 Direct
    Graph 8 3.14% 212.5 206.03 Weird triple unbalanced which won't ever occur
    Graph 9 3.13% 123.93 120.17 Weird triple unbalanced which won't ever occur
    Graph 10 1.04% 91 90.06 Weird triple unbalanced which won't ever occur
    Graph 11 5.86% 113.85 107.55 Weird triple unbalanced which won't ever occur
    Graph 12 1.00% 54.834 55.383 CPU - From MOBO reviews so no indication if same testbed was used
    Graph 13 12.91% 47.33 53.44 CPU - From MOBO reviews so no indication if same testbed was used or if MOBO had USB speed boost.
    Graph 14 0.00% 47 47 CPU - From MOBO reviews so no indication if same testbed was used
    Graph 15 1.56% 64 65 CPU - From MOBO reviews so no indication if same testbed was used
    Graph 16 3.71% 190.32 183.51 CPU - From MOBO reviews so no indication if same testbed was used
    Graph 17 1.23% 49.57 48.97 CPU - From MOBO reviews so no indication if same testbed was used
    Graph 18 2.13% 4.8 4.7 CPU - From MOBO reviews so no indication if same testbed was used
    Graph 19 0.10% 132.06 131.93 CPU Compute
    Graph 20 1.59% 755.04 743.25 CPU Compute
    Graph 21 0.01% 38.793 38.791 CPU Compute
    Graph 22 0.45% 1354 1348 CPU Compute
    Graph 23 1.32% 613 605 CPU Compute
    Graph 24 1.33% 152 150 CPU Compute
    Graph 25 3.31% 1780 1723 IGP Compute
    Graph 26 13.27% 222 196 IGP Compute - Explicit Finite Difference Solver (3d), not something going to run on an IGP…
    Graph 27 2.49% 150.653 146.993 IGP Compute
    Graph 28 1.93% 50.731 49.769 IGP Compute
    Graph 29 2.60% 7103 6923 IGP Compute
  • Hairs_ - Friday, December 13, 2013 - link

    The "Weird triple unbalanced" above refers to the idea that there is some lunatic out there running a 4 generation old Dual GPU card in crossfire with a different, single GPU from the same generation but a different spec. This is referred to as "esoteric" but I think it's safe to assume that the only person doing this is someone who has video cards sitting in a pile next to a testbed because they're a video card reviewer.

    Suffice to say I don't think this test is representative of any real world use pattern, but then neither are a lot of the tests where the stupid kits "shine" (if you can call 12% advantage for a 300% price premium "shining").
  • fluxtatic - Saturday, December 14, 2013 - link

    The 5970 and 5870 are the same GPU. It might have been interesting to see if downclocking the 5870 to match the 5970 made any difference, but this isn't as odd as you seem to think. I would guess a 3- or 4- card tri- or quad-Crossfire setup would be less common, given that it isn't easy to find motherboards that can take 3 or 4 dual-slot cards.

    It's slightly skewed in that the setup is current-gen other than the video cards, but it is similar to the way quite a few people build. They don't necessarily build a brand-new box every couple years, but replace modularly - I went from an AM3 board with an Athlon64 processor to a PhenomII, to an AM3+ board (which necessitated a RAM upgrade), then replaced the video card twice. My video card is 3 generations old, but handles what I play just fine, so next time around will be another processor upgrade.

    Intel-land is a little different, since they change sockets more frequently and a lot of people didn't see it worth the expense to upgrade when there was socket compatibility (SB -> IB, for example), but this setup doesn't strike me as that unusual. If I dropped the kind of money it takes to get a triple Crossfire setup, I'd hang onto it until the games I played started to overwhelm it.

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