Originally posted by: Avalon
2-2-2 memory is often more expensive than 2-3-3 memory, which itself typically isn't much more than CAS3 latency memory, if you look around for good deals. Low latency helps a bit, but memory has very little impact on gaming performance.
I recently did a mini review on a 2GB dual channel kit of Team Xtreem Cronus PC4000 memory, using my 2x512MB kit of Mushkin PC3200 as a reference point. At all stages, the CPU speed was kept the same, with the only thing changing being the memory speed and memory latency.
Test Setup
AMD Athlon 64 3000+ Venice E3 @ 2400mhz (8x300, 9x267)
DFI NF4 Ultra-D Lanparty s939 (modded to SLI, 6/23-2 BIOS)
eVGA 6200 128MB (modded to 6600) 8pp @ 400/650 w/79.11 forcewares
Enermax 460w WhisperII 24pin PSU (33A@12v)
NEC 3520 DVD-RW
Lite-On CD-RW/DVD
60GB IBM Deathstar ATA100 7200RPM 8MB HDD
120GB Maxtor ATA133 7200RPM 8MB HDD
Cooler Master Cavalier 3
2x120mm + 1x80mm case cooling
Thermalright SI-120 HSF
Floppy
Memory
2x1GB Team Cronus PC4000 DDR (Samsung modules, brainpower PCB)
2x512MB Mushkin Blue C2 PC3200 DDR (Winbond UTT modules, brainpower PCB)
Applications & settings
Winrar 3.5 internal benchmark, 3 minute run
Sandra Buffered memory benchmark, int and float results, average of 3 runs
Sandra Unbuffered memory benchmark, int and float, average of 3 runs
Superpi 4M single run
Doom 3 @ 800x600 high settings internal benchmark, average of 3 runs
CS:S @ 800x600 high settings stress test, average of 3 runs
Winrar 3.5
Mushkin 2-2-2-7-1T 200mhz (8x300 @ 133mhz) 3.05v - 597KB/s, 107MB
Mushkin 2.5-3-3-7-1T 200mhz (8x300 @ 133mhz) 2.95v - 546KB/s, 97MB
Team 2.5-3-3-7-1T 200mhz (8x300 @ 133mhz) 2.75v - 548KB/s, 98MB
Team 2.5-3-3-7-1T 240mhz (8x300 @ 166mhz) 2.85v - 607KB/s, 109MB
Team 3-4-3-7-1T 267mhz (9x267 @ 1:1 HTT) 2.85v - 592KB/s, 106MB
Sandra Buffered
Mushkin 2-2-2-7-1T 200mhz - Int:5918MB/s, Float:5862MB/s
Mushkin 2.5-3-3-7-1T 200mhz - Int:5858MB/s, Float:5805MB/s
Team 2.5-3-3-7-1T 200mhz - Int:5827MB/s, Float:5797MB/s
Team 2.5-3-3-7-1T 240mhz - Int:6362MB/s, Float:6304MB/s
Team 3-4-3-7-1T 267mhz - Int:6594MB/s, Float:6526MB/s
Sandra Unbuffered
Mushkin 2-2-2-7-1T 200mhz - Int:4071MB/s, Float:4060MB/s
Mushkin 2.5-3-3-7-1T 200mhz - Int:3960MB/s, Float:3942MB/s
Team 2.5-3-3-7-1T 200mhz - Int:4039MB/s, Float:4018MB/s
Team 2.5-3-3-7-1T 240mhz - Int:4651MB/s, Float:4650MB/s
Team 3-4-3-7-1T 267mhz - Int:4959MB/s, Float:4957MB/s
Superpi 4M
Mushkin 2-2-2-7-1T 200mhz - 3 min, 2.907s
Mushkin 2.5-3-3-7-1T 200mhz - 3 min, 4.906s
Team 2.5-3-3-7-1T 200mhz - 3 min, 2.922s
Team 2.5-3-3-7-1T 240mhz - 2 min, 59.250s
Team 3-4-3-7-1T 267mhz - 2 min, 57.672s
Doom 3
Mushkin 2-2-2-7-1T 200mhz - 88.2/67.4 (cached average/first run)
Mushkin 2.5-3-3-7-1T 200mhz - 87.3/67.7
Team 2.5-3-3-7-1T 200mhz - 87.25/67.7
Team 2.5-3-3-7-1T 240mhz - 88.5/68.5
Team 3-4-3-7-1T 267mhz - 88.5/68.5
CS:S
Mushkin 2-2-2-7-1T 200mhz - 141.80
Mushkin 2.5-3-3-7-1T 200mhz - 137.74
Team 2.5-3-3-7-1T 200mhz - 137.81
Team 2.5-3-3-7-1T 240mhz - 141.93
Team 3-4-3-7-1T 267mhz - 140.98
My advice is to get a cheap set of 2-3-3 memory.
CAS3 doesn't seem to be too friendly to games, at least using the Doom/Source engine, and 2-2-2 is often too expensive.
Enjoy