3D Game Man posted a review on the Mushkin PC2-6400 4GB Memory

Are you in the market for 4GBs of fast, stable, overclockable memory but you don't want to break the bank? Well, the Mushkin PC2-6400 (HP2-6400) 4GB Memory Kit is it! Being able to overclock this memory from its default speed of 800MHz to 1068MHz is incredible. Especially considering this overclock was using the fairly tight timing of 5-4-4-12. To be honest, this memory was a dream to overclock.

Mushkin PC2-6400 4GB Memory Review