Yorkfield Q9450 vs Kentsfield Q6600 at 3.6Ghz
Just a few numbers from my ES Q9450 that I've been playing with for awhile :)
http://valid.x86-secret.com/cache/297476.png
http://valid.x86-secret.com/show_oc.php?id=297476
Running at the 1333MHz bus it features 2x6MB L2, 6-8 multiplier range and some lovely 45nm technology squeezed into it.
First some bad news :( .....
Seems the FSBwall it pretty low on these ES chips - 478MHz :(
http://valid.x86-secret.com/cache/297477.png
http://valid.x86-secret.com/show_oc.php?id=297477
The x8 multiplier really limits the maximum GHz overclock on these cpus. HEre's hoping that the retail ones scale better!
...Let's see how it scales up to its predecessor the Q6600 ?
System setup
abit IX38 QuadGT
2x1024MB Team Group 450@4-3-3-8
Vvikoo 8600GT
Swiftech Compact H2O cooler
Silverstone 850W
I've decided to run both at 3.6Ghz (8x450Mhz) due to the limitation on the Q9450 FSB. Both cpus run on the same system running the same specs. The only difference was the the Q9450 vcore was 1.3volts whereas the Q6600 was 1.45volts:
Lets see some comparisons:
1M SuperPi
Q9450
http://www.itsjohnnybravo.com/Overcl...450 1M run.JPG
Q6600
http://www.itsjohnnybravo.com/Overcl...600 1M run.JPG
32M SuperPi
Q9450
http://www.itsjohnnybravo.com/Overcl...50 32M run.JPG
Q6600
http://www.itsjohnnybravo.com/Overcl...00 32M run.JPG
32M/1024M WPrime
Q9450
http://www.itsjohnnybravo.com/Overcl...prime runs.JPG
Q6600
http://www.itsjohnnybravo.com/Overcl...prime runs.JPG
3DMark06 CPU Score
Q9450
http://www.itsjohnnybravo.com/Overcl...0 3D06 run.JPG
Q6600
http://www.itsjohnnybravo.com/Overcl...0 3D06 run.JPG
Power consumption and Heat
Q9450
http://www.itsjohnnybravo.com/Overcl...50 Prime95.JPG
Q6600
http://www.itsjohnnybravo.com/Overcl...00 Prime95.JPG
Check out that current rating with all four cores loaded, the Q9450 is drawing nearly half that of the Q6600. Add to this the fact that the Q9450 requires less voltage and it's safe to say that the Q9450 is a very efficient cpu. As a result the temperatures are alot lower on the Q9450 when running all four cores - so less complicated cooling is required.
Recap On Q9450 FSB Limit!
What mobo and chipset are those complaining of the 8x multi using to make this claim. Remember they said this of the Q6600 when it was new, yet when you look into it, the mobos used were very average and most not even overclocked to keep up. I use the 8x on just about all my CPU's even if they have a higher one. I like the higher FSB anywayz.
I'd like to see some Q9450 @ 480 - 500FSB results on an X38/X48 or even top notch P35 and better brands by either ASUS or DFI. My 1.5yo+ Q6600 can do 480 500FSB on 8x multi so if the Q9450 cant beet that on same mobo and OC, then thats not gonna be fun. In fact, I used on the ASUS P5K Deluxe Q6600 @ 480x8 as daily user and at 1.588v. What kidn of vcore can the Q9450 handle on the upper end. How does it handle increased PLL and GTL volts? These are gonna be the limiting factors to keep it from getting higher FSB then older Q6600. Mine was running PLL of 1.712v for over 1 yr solid.
Also keep in mind, a revision change can and may be made since the old ES cores out there and can often be better, not always, but somethimes. This is so for the Penryn Duals.