DDR2 667 cas lat 3The timings are how long it takes for the memory to relay information. So the smaller or tighter the timings, the faster it can relay the information, without much delay. Higher voltage is not better. It will increase temperatures, and if you're not careful, it will damage or reduce the lifespan of the memory.
or DDR2 1000 cas lat 5
wats better for relaying information?
i thought the 667/1000 was the speeds, but the timings are 3 and 5
Newegg.com - Crucial Ballistix 512MB 240-Pin DDR2 SDRAM DDR2 1000 (PC2 8000) Desktop Memory - OEM
Newegg.com - Crucial Ballistix 1GB (2 x 512MB) 240-Pin DDR2 SDRAM DDR2 667 (PC2 5300) Dual Channel kit Desktop Memory - Retail