Crucial DDR2 PC2-6400 (DDR2-800)

A default screen shot using CPU-Z shows the Crucial PC2-6400 running at 1066 MHz bus speed at stock settings on the Presler 955 EE processor. Please note the default memory timings of 4-4-4-12.


Click to enlarge.

Crucial is the retail sales arm of Micron Technology, Inc., which is one of the largest dynamic DRAM manufacturers in the world, and still the only one based in the United States. In November 1996, in response to end users who wanted to upgrade existing systems, Micron launched Crucial Technology. One of their strengths has been selling to the consumer through direct sales.

SiSoftware Sandra Professional 2005 screenshots were taken at the default settings, both buffered and unbuffered in order for comparative purposes.

Default Sisoft Sandra Buffered:

Default SiSoft Sandra Unbuffered:

The biggest questions facing consumers purchasing dual channel DDR2 memory kits are how well this memory will perform, the price point, and the stability of the memory at stock and overclocked settings. The voltage requirements of specific memory modules are also important, along with customer service and warranty replacement concerns. Enthusiasts chasing the Holy Grail are apt to chase down the hottest IC's as they become available in the market place, and word of mouth drives these sales upwards significantly in the niche overclocking market.

Using Everest's Ultimate Edition 2006 to peer at the programmed SPD timings on these modules provided a brief glimpse at some information that can be seen in the image below. This version of Everest did not recognize the newer 975X chipset well, but some results will be given as a reference later in this review.


Click to enlarge.

Tools of the Trade Crucial PC2-6400 (DDR2-800): Performance
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  • gudodayn - Tuesday, February 21, 2006 - link

    Not to take anything away from Crucial or OCZ but DDR2~800 @ 4-4-4-12 has been on the market since last year!!!
    Like the article said "Other competing manufacturers such as Corsair and OCZ Technology will be able to source the same IC's......". This isnt just Corsair and OCZ, there are others. Mind you these US memory companies get their work done a lot by Taiwan manufacturers. How about Geil and PQI?? PQI have TurboMemory DDR2~900 @ 4-4-4-12 and a DDR2-1000 @ 5-5-5-15 and both are 1Gb sticks.
    What makes these Crucial sticks special?? Nothing apparently according to the benchmarks. It is nothing more than a publicity advertisement for them......New DDR2 Standard?? I think not!!!!
    Unless you have a rare batch of TCCD equivalent in DDR2 form, the playing field seems pretty even between memory manufacturers to me at the moment.
  • Xenoterranos - Tuesday, February 21, 2006 - link

    Ah winbond megachips, where have you gone to??
  • ozzimark - Tuesday, February 21, 2006 - link

    slightly confused because i don't think i ever see the pc2-6400 running at 400mhz? just give me a chart with the max speed with varying timings and i'll be happy. if not, i'll get some myself and do it :p
  • Avalon - Tuesday, February 21, 2006 - link

    No, I'm with you Zebo. I can't wait for DDR2 on AMD's AM2. I'll be getting one of those 35w X2 3800+ CPUs and some phase change ;)
  • BrownTown - Tuesday, February 21, 2006 - link

    why the heck would anyone get phase change on a 35W CPU, thats complete freaking overkill. I hope its not because you intend to overclock it becasue then you will be sorely disapointed. How do you think AMD got it down to 35W? they replaced the current highspeed transistors with ones that sacrifice speed for power consumption. OF course with the FX-62 they have to go the other way and therefore get 125W, but great speed. Seeing as that only a 50% clock increase for more then 3x the power consumption. The new low power transistors will be low-voltage, low-power, and low-speed. Sorry, no free lunch, everything comes at a cost, and here its power for speed.
  • Leonidas1 - Tuesday, February 21, 2006 - link

    Haha, lower speed transistors, you think they would honestly engineer two versons? I highly doubt it, I don't know a lot about CPU's but my guess is that these low power chips are got the same way the turions are they are tested and binned for speed and voltage. The ones that work at lower voltages at high speeds become these special low wattage CPUs and the others become regulars. I dont know about overclocking but I would guess they would overclock better too. Just a guess because no one knows yet though.
  • BrownTown - Wednesday, February 22, 2006 - link

    its always interesting when people mock you and then follow it by saying "I don't know a lot about CPU's". But, you are right, they will do the same that they did with Turion. And what they did with Turion was to use differnet transistors than they did in the A64... Before making statements its best to confirm with Google, takes 10 seconds and make you not look like an idiot...
  • ozzimark - Tuesday, February 21, 2006 - link

    there are "fast" and "slow" transistors actually.. ;)
  • Zebo - Tuesday, February 21, 2006 - link

    Am I the only pne who can't wait for DDR2 to be supported by AMD on 6/6/6? Rumour has it unofficial DDR2-800 support - combined with A64 superior memcontroller 3-2-2 800 possible? I hope it's tested Wes.
  • Googer - Wednesday, February 22, 2006 - link

    Zebo, I think I am staying away form any RAM that has Satanic Memory Timings.

    As for the Socket AM2 Tomshardware has already benchmarked it.
    http://www.tomshardware.com/2006/02/21/a_look_at_a...">http://www.tomshardware.com/2006/02/21/a_look_at_a...

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