I am working on upgrading my existing system with a new board and memory. I haven't decided on the KT400 or nForce2 chipset yet, but am more interested in the memory. The reviews I read on your site show that in both chipsets the 2700 memory modules have a slight speed advantage over the 3200.
When I went to price out Cosair XMS CL2 512mb 2700 and 3200 chips, I found there literally is only a $5 difference in price. If i bought the 3200 chip, can i lock the motherboard in a 2700 mode in order to the speed advantage of a 2700 chip? or should I just run it a 3200? Also, fancy options aside, which chipset (KT400, Nforce2) supports the memory better? I am trying to look down the line and buy memory that is compatible with the future opteron cpu, yet also have good performance now. I mostly use my machine for games and video encoding using TMPGEnc. Any feedback would be appreciated.
PC3200 can be set to PC2700 speeds in the BIOS...so no worry there. If they are similar in price, i believe its better to go with the 3200 because it probably has a faster latency at 2700 speeds.
as for chipsets, the nForce2 supports dual channel, which should give you better performance. you will need 2 modules (preferably the same size/speed/manufacurer) to take advantage of.
of course this is moot if you don't have a proc that supports 333FSB (AMD 2700+ or greater (and maybe some 2600+?)) unless you plan on OCing. otherwise go with the VIA chipset.