Difference between DDR2 667 and DDR2 800

[Piesang]

Can anyone tell me what the performance difference is between these two.

 

[BT6LW]

800 - 667 = 133

 

[BT6LW]

The real answer is slightly more complicated - DDR II 800 can be slightly faster - but it depends on which cpu you are using - what the FSB is - as well as latency on the RAM itself... give more info

 

[Piesang]

My motherboard support 800mhz RAM. Currently I use 2x 1GB 667mhz RAM. I want to add 2GB. Is it better to buy 4x 1GB 800mhz RAM or just buy 2x 1GB 667mhz RAM?

 

[HavocXphere]

I'd go for 667 because the 800 will run at 667 anyway.

 

[Sapphiron]

Basically PC's are not nearly bottlenecked with RAM these days. So performance diffrerence is barely measurable. My DDR2-667 ram scores a 5.9 (max score) in Vista.

The only thing DDR2-800 is it can overclock CPU's better than DDR2-667 (locked at 30% overclocks)

 

[DragonLogos]

The price gap is so narrow it leans towards 800 - the problem used to be with 533 and some dual cores

 

[Piesang]

My DDR2 667 scored 5.6 in Vista. Anyone with DDR2 800 that can give a score please?

 

[hj2k_x]

My DDR2 667 scored 5.6 in Vista. Anyone with DDR2 800 that can give a score please?

My DDR 800 scored 5.6 as well.

 

[Piesang]

So then it will be better just to add 2 x1GB DDR2 667 Dimms than selling my two Dimms and buy 4 x1GB DDR2 800 Dimms.

 

[hj2k_x]

So then it will be better just to add 2 x1GB DDR2 667 Dimms than selling my two Dimms and buy 4 x1GB DDR2 800 Dimms.

I would think so, yes.

 

[proximiti99]

Seconded, not worth the extra tom for 800's.

 

[Glordit]

Short Anser: nothing
Long Anser: Check Wikipedia

There is proabably no difference just buy more DDR2 667 not worth the money to buy all new sticks of ram

 

[Lino]

Personally I would rather spend a few extra $$$ and get the DDR2-800, I upgraded all my ram from 533 (Ok I know its slower than 667) to 4GB of DDR2-800 and I do not regret it.

As long as your PC's FSB can run at 800, get it otherwise stick with getting extra DDR2-667

 

[martmeister]

I had 2x 667 and just bought 2x 800. They all run at 667 dual channel. I haven't really noticed any difference on XP with the extra 2GB (1.5GB). I wouldn't go to the effort of selling the 667 and buying 4x 800. Just get the best quality you can afford.