DDR2 RAM
Without high-frequency ram you won't be able to overclock your intel core2 or socket AM2 athlon 64 CPU far. As this labs test shows, you don't need to spend a fortune on DDR2 RA to achieve great results.
Corsair Value Select VS1GB667D2

| Manufacturer: | Price: |
| Corsair | £132.23 inc VAT (2 x 1GB) |
| Reviewer: | Review Date: |
| James Gorbold | Oct 2006 |
|
| Speed | 15/20 | 75% |
| Maximum Frequency | 26/45 | 58% |
| Value | 27/35 | 77% |
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Verdict: Cheap and reasonably overclockable, but nothing special
While Corsair is best known for its high-quality, overclocking-friendly RAM, it also produces a range of cheaper memory known as Value Select.
Hidden in the middle of the VS1GB667D2 name is a clue to this kit's specs. It's rated as PC2-5300 DDR2, so it's guaranteed to run at up to 667MHz. Its latency timings are very slow at 5 - 5 - 5 - 15. To keep down costs, Corsair hasn't outfitted the DIMMs with any heatspreaders, not that this really makes a difference.
Lower latency timings have less effect on performance with DDR2 DIMMs than with DDR DIMMs, so the VS1GB667D2 sped through our benchmarks at almost exactly the same speed as the more expensive kits. The only exception to this was the SuperPi 32M test, which was slower due to its lower bandwidth.
The VS1GB667D2 wouldn't overclock beyond 667MHz at its stock timings but, by dropping the timings to 6 - 6 - 6 - 18 and increasing the voltage to 2V, we overclocked it to 800MHz. This is a respectable overclock for such a cheap kit, although Crucial's equally cheap CT2KIT12864AA53E kit overclocks by much more.
The VS1GB667D2 is one the cheapest 2GB kits on the market, but even this isn't enough to warrant a recommendation over the awesomely overclockable Crucial CT2KIT12864AA53E kit, which costs £14 more and overclocked to 1,066MHz.