The G.SKILL 4GB PC 8800 memory is very overclockable. Furthermore, it
comes with a premium aluminum heat spreader with tall and unique design to
provide the optimum heat dissipation for the memory chips. The G.SKILL PC2
8800 was made of 8 layers PCB to provide the best performance. As for the
overclocking performance.

http://www.techniz.co.uk/gskill-ddr2...gb-memory.html