Kingston KVR400X64C3AK2/1G

Kingston's second Value RAM was the most reasonable RAM in our roundup. We found KVR400X64C3AK2/1G available at several Internet dealers for around $100. While we were testing for this roundup, we also saw this Kingston CAS3 Value RAM on sale at one web retailer for $91 for a Gigabyte of memory. This is a high volume, readily available Kingston product that also performs much better than you might expect from the price and specifications.

Kingston KVR400X64C3AK2/1G is supplied as a 1GB kit consisting of 2 512MB double-sided DIMMs. It is designed as a low-cost dual-channel memory kit.

Like the Kingston CAS 2.5 Value RAM, there are no heatspreaders on the DIMM modules. The memory chips are Elpida, which we have seen used in a few other DDR400 memory products.


The KVR400X64C3AK2/1G is rated by Kingston at CAS 3 and we found the automatic SPD timings to be 3-3-3-8 at stock voltage. These are not particularly exciting timings - even for a Value RAM.

 Kingston KVR400X64C3AK2/1G (DDR400) Memory Specifications
Number of DIMMs & Banks 2 DS
Total Memory
512 MB
Rated Timings 3-3-3 at DDR400
SPD (Auto) Timings 3-3-3-8
Rated Voltage 2.6V

As you will see in our timings below, however, it is definitely worth your effort to set timings manually for this low-priced Kingston Value RAM, as it is capable of decent performance and overclocking, especially considering its value price.

Test Results

Kingston KVR400X64C3AK2/1G (DDR400) - 2 x 512Mb Double-Bank
CPU Ratio at 2.4GHz Memory
Memory Timings
& Voltage
Sandra UNBuffered Sandra Standard
Super PI 2M places
(time in sec)
Wolfenstein - Radar - Enemy Territory fps
12x200 400 DDR 2.5-3-3-6
2.6V 1T
530.2 INT 2586
FLT 2748
INT 6057
FLT 6023
83 111.7
11x218 436 DDR 3-3-3-6
2.7V 1T
531.6 INT 2706
FLT 3927
INT 6425
FLT 6354
82 112.0
Highest CPU/Mem Performance 3-3-3-7
2.9V 1T
580.8 INT 2831
FLT 3023
INT 6772
FLT 6719
74 124.0
To be considered stable for test purposes, Quake3 benchmark, UT2003 Demo, Super PI, Aquamark 3, and Comanche 4 had to complete without incident. Any of these, and in particular Super PI, will crash a less-than stable memory configuration.

The Kingston CAS 3 is significantly cheaper than the CAS 2.5, but it also performed fine at CAS 2.5 at the stock DDR400 at standard voltage. Even more important for some, the KVR400X64C3AK2/1G had excellent head room, as it was able to reach DDR450 at voltages available on many motherboards. At $91 to $100 for a matched pair of 512MB DIMMs, this Kingston kit is an outstanding value.

Aida 32 has been useful in the past in examining read/write performance and memory latency. Aida 32 is now available as Everest Home Edition, a free download from

Kingston KVR400X64C25/512 (DDR400) 2x512Mb Double-Bank
Everest 1.51
CPU Ratio at 2.4GHz Memory Speed Memory Timings
& Voltage
Everest READ
Everest WRITE
Everest Latency
12x200 400 DDR 2.5-3-3-6
2.6V 1T
5750 1872 47.2
11x218 436 DDR 3-3-3-6
2.7V 1T
6030 1974 48.7
Highest CPU/Mem Performance 3-3-3-6
2.9V 1T
6370 2083 47.2

With the somewhat limited range of DDR400 to DDR450 you will not see the kinds of memory read and write increases that we see in top-end memory. However, DDR450 represents a CPU clock of 225, or 12.5% over the base 200 speed. This is often fast enough on the Athlon 64 to allow you to reach the highest speed that your A64 CPU might reach at stock multiplier. In this case, we were able to take our 4000+ from a stock 2.4GHz to 2.7GHz with the memory keeping up. If you need to go even higher, memory multipliers can be lowered, but there is a memory performance penalty when dropping from 1:1 to a lower base memory speed.

All-in-all, the Kingston KVR400X64C3AK2/1G is a surprisingly good performer for memory that you can buy for about $100 per Gigabyte. The timings are not the fastest, but gaming performance at DDR400 is just 8% faster with the fastest 2-2-2 that we have tested at DDR400 (Quake 3 at 530.2 to 572.8, RTCW at 111.7 to 120.2). The real difference between this Value RAM and the expensive memory is at the top, where OCZ VX at top memory speeds can outperform this Kingston at top speed by 10% to as much as 21% in Gaming frame rates.

Kingston KVR400X64C25/512 Mushkin EM Series PC3200


View All Comments

  • CanadianDoc - Sunday, April 17, 2005 - link

    1 GB (2 x 512 MB) of Crucial Ballistix PC 3200 now lists for $192 U.S. at

    On any mobo, it runs at 200 MHz (DDR 400) at 2-2-2-6 timings at 2.8 V, outperforming any other RAM in this review.

    As shown by AnandTech (, on a DFI nF4 mobo, it overclocks to 280 MHz (DDR 560) at 2.5-3-3-6 timings at only 2.9 V, where it closely matches the top performance of any RAM available at any price, bar none. IMHO, this is real value.

    Adding a Venice 3200+ overclocked to 10 x 280 MHz = 2.80 GHz (, a Thermalright XP-90 heatsink with a SilenX 92mm 14dBA fan, a Seagate 7200.8 SATA NCQ hard drive, and a Gigabyte X800 XL video card with SilentPipe cooling (GV-RX80L256V), in an Antec Performance One (P160) case ( with an XG Magnum 500W heatpipe PSU (available later this month, according to, you have the makings of an ultra-quiet gaming rig with near state-of-the-art performance at a great bang-for-the-buck price.
  • ozzimark - Thursday, April 14, 2005 - link

    you can. i'm a big advocate of crucial ballistix

    speaking of that company, why were they missing from the testing too?
  • BaronVonAwesome - Thursday, April 14, 2005 - link

    195 seems a bit steep for value RAM. I'd like to point out that you can get Ballistix from Crucial for less than 210 I believe. Reply
  • Den - Thursday, April 14, 2005 - link

    Thanks for pointing out that the part numbers are on page two. As many others have said, it would have been really nice to see the best the different rams would do at 2.9v in addition to what they would do with DFI voltage. Also it would have been nice to see a greater range of memory tested but I understand you are limited by not being able to afford to buy and test what you want. Beggars can't be choosy. Thanks for doing this though, the general concept was good and there was some interesting information. Reply
  • NXIL - Thursday, April 14, 2005 - link

    Paying $100 to buy some Corsair Valueram (Newegg--had an $88 special yesterday) would have been the fair and reasonable course of action.

    Consumer Reports has been testing products fairly for decades--they don't accept advertising, and, they buy the cars, electronics, and other items they test anonymously. Of note is that "Sharper Image" has sued them recently (SI lost) when they tested one of their bogus "air purifiers"--seems to make the air less clean, actually, by releasing ozone.

    Anandtech should get some Corsair RAM and test it--and, they should buy samples of the other brands tested, and compare the "off the street" samples with the ones provided by the manufacturers. Unless I am mistaken, video card makers were found to be rigging their drivers to test better with certain benchmarks. It would not be too surprising to find that memory manufacturers had taken some of their special high cost "binned" chips and sent them out with a "value" label on them.

  • MadAd - Wednesday, April 13, 2005 - link

    Oh dear ... I left this review for 2 days till I had time to read it properly, I'm sorry to say I wish I had not bothered.

    1) Should have been titled value ram from non value companies. Wheres the real value ram?

    Since the price began to drop we seem to be up to our ears in stuff ive never heard of purporting to be cas3@3200 - Stupid me for thinking that thats what a value roundup should include, noname oem kit, not some hand selected bunch of good-but-value-priced ram from the majors.

    2) Why is the following question being avoided and ignored? Namely why wasnt any corsair memory got from another source and included in the test?

    A reader posted some assumptions however further to that it could be i) they use pretty much the same chips all over and dont want to give the game away that the extra $100 doesnt get you much increase and ii) anandtech dont want to bite the hand that feeds so bowed down to the request rather than doing whats right and finding the truth come hell or high water.

    Im not usually this negative but I do feel quite let down, sorry.
  • classy - Wednesday, April 13, 2005 - link

    I think a lot of folks are missing it. I think some people need to look at this way. You would have upgrade your cpu 1-2 speed grades to equal the performance increase that using the VX or BH5 memory would bring. Even at stock speeds. Now yes you need more voltage, but DFI I believe produces the best A64 borads as well as the best athlon XP board, Ultra B, which all are capable of supplying the necessary voltage. You can also use the ddr booster on some boards. Its a great alternative to increase system performance without spending a lot of money. And this is memory that you can grow with for at least a couple of years. I believe AMD said it won't go DDR2 until 2007. Great article, good stuff, and nice to see other ways to bring a performance increase. Nice job Wesley Reply
  • unclebud - Wednesday, April 13, 2005 - link

    84 comments in 2 days!!! haven't seen that in a while...
    thanks for the article! good reading as usual
  • XRaider - Wednesday, April 13, 2005 - link

    The cheap OCZ is faster then the Plat. Rev2 !!! Ain't dat a Bitch!!! >:-(
    WTF is up with OCZ. shooot.
  • srstudios - Wednesday, April 13, 2005 - link

    Wesley, I hate to be a nag, but now you have both the OCZ PC3200 Gold, and the OCZ PC3200 Premier with the same model number. PC3200 Gold P/NOCZ4001024ELDCGE-K
    is correct.

    The Premier should be PN- OCZ4001024PDC-K, at least I think that's the correct part.

    I have a gig of the 'old' BH-5, Mushkin Black L2 PC3500, do you think they would play nice with this new value BH-5? I don't think I would combine them, just wonder if you guys have any thoughts about it.

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