Why..when i on stock...my memory bandwidth efficiency in sandra report on 68%? Even my timing was 6-3-3-2.5 with 1T command.
Then when i try Overclock 1:1 to get DDR500 at 2250mhz..My bandwidth Efficiency is now 74%
When i use 3:2 Doing DDR466 At 2600mhz...My bandwidth Efficiency is 82%.
Then When i increase my clock speed to max at 2.76ghz (306x9) 3:2 DDR500.,...i have bandwidth efficiency of 89% .

That on multiplier of 9.
Then i try use 325HTT * 8Multi (2600mhz) with 3:2 DDR520. I get again 82% .
Using another Divider at 4:3..i get the 82% still.

Conclusion: The clockspeed is proportional to bandwidth efficiency?
This is a problem to me as i was thinking to under volt my venice and run around at 2250mhz...but..only 74-75% efficiency of the ram.

Pls take note that all the test is done using the same timing.

If...opty run at 3.0ghz...sure the efficiency is high and dont need CL2.0 BH5 to overclock rite? Since the efficiency of the bandwidth is high enuff.

Yea..it affect the speed . My first post was about Same Ram Timing/Option with Clock speed varies from default till 2.76ghz.



Anyway...if i put Drive Str Weak...for multiplier of 9, I will have 87% bandwidth efficiency no matter how high is my clock speed and Timing. Even 6-3-3-2.5 give same result like 9-5-5-3.0.
If my multiplier is 8x..it will stuck at 82% bandwidth efficiency. ALL this happen if Drive Str - WEAK. On the first post..it on Drive Str - Normal