Questions about 667mhz DDR 2 memory vs DDR 2 6400 (800mhz memory)

[g335]

Hello

I have a Dell XPS 420 with 667mhz DDr2 memory. I have a Q6600 cpu. The Dell motherboard's system bus is limited to 6400 DDR 2 (800mhz) memory max.

With playing games and doing tasks, will upgrading to the 6400 DDR2 memory be worth upgrading to?

I am running windows 8 and have 4gigs of the 667mhz memory.

 

[cin19]

It is not worth to upgrade to the 800MHZ ram, because they have almost same performances. Read the review, even though it is old. http://www.anandtech.com/show/1982/9
And you have the 4GB RAM then it is more than enough for most usage. Also I have the link for the detail " Is It Time To Add More RAM?" http://www.tomshardware.com/reviews/ram-memory-upgrade,2778-8.html
I check the Dell XPS 420 specs and the 4GB is maximum. If you want to upgrade the PC, get the intel 3rd generation processors for games.

 

[g335]

It is not worth to upgrade to the 800MHZ ram, because they have almost same performances. Read the review, even though it is old. http://www.anandtech.com/show/1982/9
And you have the 4GB RAM then it is more than enough for most usage. Also I have the link for the detail " Is It Time To Add More RAM?" http://www.tomshardware.com/reviews/ram-memory-upgrade,2778-8.html
I check the Dell XPS 420 specs and the 4GB is maximum. If you want to upgrade the PC, get the intel 3rd generation processors for games.

Thanks