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Reviewed by: Carl Nelson [03.24.04]
Manufactured by: Corsair, Kingston, and OCZ

Prices for 1 GB kits from
Corsair TwinX 4400: $399
Kingston HyperX 4300: $408 (at shop.kingston)
OCZ Performance Series PC4400: $369

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Corsair TwinX 1024-4400

I'm sure our readers won't mind us using for pricing - there is no doubt that they are by far the best online retailer around (which is why WE sought after THEM to advertise - more of a service to our readers than anything). NewEgg represents not only the best selection and usually prices, but their customer support is unbeatable.

The 1GB set of TwinX 4400 can be found for $399 at This seems to be the usual price for this level of product. If you search around on Price Watch, you'll find them to be in the neighborhood of $380-400. The TwinX 4400 is only available in sets of 1GB.

Corsair looks to have a very good warranty, offering a lifetime warranty:

Corsair’s memory products carry a lifetime warranty. This means that Corsair products are guaranteed to operate, as specified by their datasheet, and in the operating environment for which they were intended, for the life of the product.

As long as you don't push them way beyond spec, you should be covered. They also have an online forum for you to get help in, before taking that RMA step.

As you can see, the timings are a very non-aggressive 3-4-4-8. You'll find that all ultra-high FSB memory uses these high timings; it's the only way to get the clock speed up while maintaining stability. Keep in mind that you should ONLY be looking at PC4000 and above if you are on an Intel Pentium 4 setup. On an AMD setup, you will very likely not be able to reach near the high speeds these chips were designed for, and even if you did, the latencies would be so high that much benefit would be lost. We've found that high timings like these don't affect the P4 platform that much.

TwinX 4400 is intended to be used at 2.75V. Finding a board that supports that exact voltage might be difficult; we ran ours at 2.8V because that was the closest voltage without going under 2.75 (which it needs in order to attain such a high speed).

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