Last month's desktop announcement from Gateway showed us two things: one, that desktop memory is now more affordable than ever; and two, that the 64-bit software era is upon us in full force.
Each of the four desktops Gateway announced that day comes with 64-bit Vista, and they also all have either 4GB or 6GB of RAM. Considering the decidedly mainstream $550 to $1,150 price range for those PCs, all of a sudden those exotic features don't seem so exotic any more. But then we got our hands on one of those new Gateways for a review. What we found surprised us.
What we learned in our recent review of the $1,150 Gateway FX4710 is that 6GB of RAM actually made almost no difference in current applications. We became suspicious when we compared its scores with the 4GB-equipped Gateway FX7026. To be sure, we ran our complete desktop benchmark suite (minus Crysis, which was acting weird) on the FX4710 three times, with 2GB, 4GB, and 6GB of RAM installed.
As you can see in the charts below, moving from 2GB to 4GB in 64-bit has a definite performance impact, in some cases, especially in Photoshop and on our multimedia multitasking test, both of which handle large amounts of data at once. But going from 4GB to 6GB got us much less of a boost.
(Shorter bars indicate better performance)
(Shorter bars indicate better performance)
(Shorter bars indicate better performance)
(Longer bars indicate better performance)
 | Rendering Multiple CPUs | | Rendering Single CPU |