Conclusion

This is one weird pair of memory modules. It doesn't like loose timings at all! Increasing the CAS latency did very little for their overclockability. Corsair evidently optimized them for low latency operations.

I actually boosted the voltage higher to 2.9V (effectively 3.0V according to the NF7-S' Winbond monitoring chip) but I still can't make them run faster than 460MHz. Mind you, my system has been proven to run at up to 480MHz with 100% stability using other memory modules. So, these memory modules appear to be limited to 460MHz.

But at 460MHz with timings at 2-3-2-6, I shouldn't be complaining about their performance at all! At this speed, the Corsair TwinX PC3200LL will have about 3.7GB/s or 7.4GB/s of bandwidth when used with dual channel motherboards! Although there is no such thing as PC3700, these memory modules can be considered as PC3700 parts based on their performance!

Even at default timing of 2-3-2-6 and at 2.6V, they were still capable of running at 434MHz! This is essentially PC3500 performance right out of the box! However, you must know that the Winbond BH-5 chips are still one of the best memory chips in the market. So, it is no surprise that they have managed to perform well in these Corsair TwinX memory modules.

Corsair TwinX memory modules will probably cost you more than if you just buy two similar memory modules separately. But the pre-testing done on TwinX memory modules ensure that they will work well with each other when used with dual-channel motherboards. If you try to save a little money and get individual memory modules, there is a risk that they may not work well together. Therefore, it is advisable to get pre-tested paired memory modules if you are using a dual-channel motherboard.

These memory modules certainly don't come cheap. But not only they are pre-tested for dual-channel motherboards, they are really overclockable, even at low latencies! So, if you are looking for overclockable low latency memory modules, the Corsair TwinX512-3200LL is something you should consider.

Questions & Comments

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