will ddr3 1600 operate at 1333?

[rumbl3]

Well I was about to grab some memory at microcenter for a board. I was wondering if it will operate at lower speed cause the board only goes up to 1333.

Just curious if then when im ocing the memory will climb in speed so i dont have to really crank it down while im ocing.

Its the same price as the 1333 memory i was looking at.

http://www.microcenter.com/single_product_results.phtml?product_id=0332937

 

[Caustic]

yes, it will clock down. im doping this atm until someone answers my question on here lol

bestbuy is clearencing out corsair 4gb ddr3 1600 right now for 59.99 btw

 

[redduc900]

What board do you have that won't allow for RAM rated at > DDR3-1333?

 

[rumbl3]

What board do you have that won't allow for RAM rated at > DDR3-1333?

It will allow it. I'm was just curious (cause i never have) if higher speed ram will work on it. It's free board from microcenter biostar. supports up to 1333. But i was just curious if i could get the crucial thats 1600 and run it at 1333 do some ocing lol.

 

[keredg]

it will run downgraded, maybe if there is a bios update it may support the higher speed

 

[redduc900]

What model of Biostar?

 

[homicsbane]

I'm running one stick of XMS3 1600 CL9 right now at 1333 CL7. It seems to be faster this way.

 

[Bobnova]

1333-7 (1333 / 7 = 190) is indeed faster then 1600-9 (1600 / 9 = 177).

Not a lot, but some.

 

[Remlore]

1333-7 (1333 / 7 = 190) is indeed faster then 1600-9 (1600 / 9 = 177).

Not a lot, but some.

I beg to differ on that. It depends on the CPU, no? If the Memory Controller is on the CPU thus eliminating the FSB bottleneck, then the bandwidth is determined by the Memory Clock. Take the Sandy Bridge with a 100 mhz FSB.
But really there isn't an FSB, the NB is bypassed. You have the QPI which can get ~25 Gb/sec. So if the memory clock is 667 as opposed to 800 (2x)
then you're losing about ~ 6 GB/sec bandwidth regardless of the latency timings. 2600k @ 1066 or 533mhz Memory Clock 2x gets me around 14.5 Gb/sec (they use MT/s also now for this quad pump deal, effective transfer rate) @ 1600 i get 21 GB/sec, which is around ~82% efficiency .. the max would be ~ 25.6 GB/sec dictated by the QPI Bandwidth which would be ~100% hah! I wish... FSB was a bottleneck on the older CPUS when it wasn't intergrated with the CPU, and putting in Higher Clocked memory wouldn't mean much .. if the Bus was 133, and you put in memory for a 200mhz FSB .. the gain would be nill becuase the FSB could only communicate at 133Mhz, unless you overclocked the FSB of course... Please correct me if I'm wrong about this, but this is my understanding of it thus far...