I have a dual core setup with 4 * 512MB OCZ Premier modules in dual channel mode with 2.5-3-3-6-2T timings. I get a Sisandra Memory benchmark score of appx. 4400MB/s. Isn't this very low compared to the theoretical limit of 6400MB/s? I know I am running CAS 2.5 and 2T, but I would still have expected something around 5500MB/s.

MB: MSI K8T Neo2 FIR 939 AGP board
Chipset: K8T800 Pro
CPU: X2 4400
Video: AIW 9600 XT

Quicksilver
Date: April 06, 2005 at 14:31:01 Pacific
Subject: Any performance diff between ram

Reply:
With doing that type of comparison you will almost always feel deflated.
There are so many things that you don't know about the systems your results are compared with. You would need to know things like, what BIOS ver do they have, what psu, what programs, what tweaks, what cards, even down to the date of manufacture of the mem they have and are all their drivers up to date. (are yours?)
The bottom line is, despite what they show as mem score, are you really comparing like for like. The odds are you aren't.
Use them as a guide, nothing more.

AMD Athlon 64 FX-55
WinXP Pro. WinXP Pro x64
Nvidia:6800GT
Dane Electronic Pro. Dual 1024MB 400MHz RAM
Tagan 480Watt PSU: 28Amps on +12volt rail.
Asus A8V Deluxe "WiFi" M/Board

Mines 7390

Tt Lanfire
MSI K8N Diamond
3000+'Venice'@294x9x3 1:1
1GB PC3200
OCZ Powerstream 520w
6600GT
WDCaviar 160gb sata x2

;~}