Quote Originally Posted by Particle View Post
Opteron systems use slower memory. They top out with DDR2-667 ECC Registered.
Quote Originally Posted by Oliverda View Post
The Shanghai core Opterons will support the DDR2-800 ECC Registered standard.

http://www.newegg.com/Product/Produc...C%20registered
Quote Originally Posted by demonkevy666 View Post
ECC registered is slow compared to desktop. at 800mhz the timings are like 5-5-5-18 and 6-6-6-24.

error correcting check < thats what ECC (I think)
Quote Originally Posted by roofsniper View Post
yea ecc registered ram is built for stability.
Quote Originally Posted by Oese View Post
opteron will be clocked slower as well, or deneb will be clocked higher then shanghai the other way round. remember the thermal stress in server racks and the much higher need for reliability in the server section..
so because of all these reasons you could say that Opterons are kinda krippled just to be server stable.

well between the memory increase going from 667/800 to 1066 for Deneb, the clock for clock increase, the increase in total clocks (2.7 vs 3.0ghz) + overclocking we should see very nice increases overall