New iMacs - 800Mhz RAM?

Tsurisuto

macrumors 6502
Original poster
Jun 13, 2007
343
0
I was looking at the prices for RAM upgrades on Crucial and I noticed that they offer 2 choices:

DDR2 PC2-6400 (800Mhz) or DDR2 PC2-5300 (667Mhz)

Apple just offer RAM speeds off 667Mhz, is there going to be much of a difference if I choose to upgrade?
 

Magnus Reftel

macrumors member
May 16, 2006
77
0
I was looking at the prices for RAM upgrades on Crucial and I noticed that they offer 2 choices:

DDR2 PC2-6400 (800Mhz) or DDR2 PC2-5300 (667Mhz)

Apple just offer RAM speeds off 667Mhz, is there going to be much of a difference if I choose to upgrade?
No. The new iMac is built on the Santa Rosa platform, and Santa Rosa only supports DDR2-533 and DDR2-667. If you install 800MHz memory, it will be underclocked to 667, like mad jew says.
 

rds

macrumors regular
Aug 9, 2007
148
0
Thanks for the info. So what chipset do we have to wait for, to take advantage off 800Mhz RAM?
Unless you plan on overclocking (which I highly doubt), there wouldn't be much difference between the two.

If you look at today's prices, you can get 4GB of PC2-5300 for the price of 2GB of PC2-6400.