I've heard that RAM speeds and timings don't matter as much with an Athlon 64. I'm wondering just how much of a difference it makes. The RAM from my old system is Crucial DDR266 Cas2.5, in one 512mb and one 256mb stick. If I kept this RAM in the new system I'm building, how much of a performance hit do you think I'd get in games, including Doom 3?
The rest of the system:
Athlon 64 3000+ Newcastle
Chaintech VNF3-250
Radeon 9800 pro -> XT 256mb
The rest of the system:
Athlon 64 3000+ Newcastle
Chaintech VNF3-250
Radeon 9800 pro -> XT 256mb