[size=1]Corsair XMS Extreme Memory Speed Platinum Series, Low Latency (Twin Pack) 184 Pin 1GB(512MBx2) ECC Registered DDR PC-3200 - Retail
$295.00 [/size]
ah ok your first one costs more because its ECC. Dont bother getting ECC ram, its not any better then non-ecc for what your going to be doing and as you can see it cost a lot more.
The dual/twin packs are good! They are the way to go if your going to be getting 2 sticks of ram. They're just better because they are made for dual channel (can work out of dual channel though without any probs). Its good to get twin packs for dual channel because the modules are exactly the same so it will 99% work.
Second and third down the list:
Corsair XMS Extreme Memory Speed Series, Low Latency (Twin Pack) 184 Pin 1GB(512MBx2) DDR PC-3200PRO - Retail
$283.00
Corsair XMS Extreme Memory Speed Series, (Twin Pack) 184 Pin 1GB(512MBx2) DDR PC-3200PRO - Retail
$259.00
The top one costs more because its "Low Latency". I'm not sure if it would be worth the extra money for the "low latency".
Fourth down,
[size=1]Corsair XMS Extreme Memory Speed Series, (Twin Pack) 184 Pin 1GB(512MBx2) Registered DDR PC-3200 w/ Platinum-Silver Heat Spreader - Retail
$255.00 [/size]
Dont know why this is cheaper then the third down :blackeye: It even comes with a heat spreader, which is why the 5th down is $2 cheaper then this one, because the 5th down doesnt come with a heat spreader. Spend the extra $2
[size=1]Corsair XMS Extreme Memory Speed Series, (Twin Pack)184 Pin 1GB(512MBx2) DDR PC-3200 - Retail
$252.00
Corsair XMS Extreme Memory Speed Series, (Twin Pack) 184 Pin 1GB(512MBx2) DDR PC-3200 - Retail
$211.00 [/size]
^^ Difference between these two would be the latency. One has better latency then the other.
[size=1]Corsair XMS Extreme Memory Speed Series, Low Latency 184 Pin 512MB DDR PC-3200PRO - Retail
$148.00 [/size]
^^ This is a ton cheaper because its only 1 stick of 512MBs, all the others are twin packs (which come with twin/dual sticks, ie. 2 sticks).
I would get Corsair over Kingston without a doubt. Out of all that RAM, I'd get the "Corsair XMS Extreme Memory Speed Series, (Twin Pack) 184 Pin 1GB(512MBx2) Registered DDR PC-3200 w/ Platinum-Silver Heat Spreader - Retail
$255.00". The 'low latency' one for $28 more probably isnt worth it.
Hope this helps