DDR3 on an AM3 Board

[nheather]

Looking at 4GB (2x2) of DDR3 memory to run in Dual-Channel on an AM3 board (955BE CPU).

The CPU memory controller supports 1333Mhz but the MoBo says that it allows 1666MHz as Overclock.

1 - Does this mean that I can use 1600MHz RAM even the CPU controller only supports 1333?

2 - Assuming I can, what would be best 1333 at CL6 or 1600 at CL8?

3 - Assuming the 1333 at CL6 is better would I be better off just buying 1333 RAM or buying 1600 RAM (in the hope that when I slow it down I can reduce the CL).

Cheers,

Nigel

 

[blaineoliver]

You can use 1600 memory using a higher multiplier

 

[nheather]

Thanks, that's one question sorted.

So, Bandwidth vs Latency

I read some reviews and in many cases DDR3 1600 RAM with CL9 is lagging behind DD2 800 RAM with CL5.

So I was wondering which of these would be faster

1600 running at CL8

http://www.overclockers.co.uk/showproduct.php?prodid=MY-042-GS&groupid=701&catid=8&subcat=1387

or 1333 running at CL6

http://www.overclockers.co.uk/showproduct.php?prodid=MY-024-PA&groupid=701&catid=8&subcat=1387

Cheers,

Nigel