Lucky unlock Phenom II x3 compared to ????

[alrightgame]

I recently purchased a Phenom II x3 that unlocked to a quad core. Other then requiring a .025 voltage bump every 200 Mhz after 3.0 Ghz, it seems to overclock the same stable as any other quad core.
My highest overclock was 3.6Ghz at 1.4v and it reached temperatures of 56 Celsius in prime after several hours on my outdated Arctic Cooler 64 Pro.
I have not tried more because of my cooler and I like to keep my temps below 55C.
I'm sure if I used a Xigmatek Dark Knight this would be stable 3.8Ghz at 1.45V.
The only quirk I've found is the 4th core runs about 20-40 seconds behind after a 10th prime iteration, so it seems to be a bit slower then the other cores, and I can't tell for sure what the core temps are in Everest, but I assume it is lower then CPU temp as with usual core temps.
Other then the rather high voltage required to run the unlocked 4th core, could I assume this was just a demand lockout on AMDs part?
It makes sense as when the Phenom II x2s were released, people started asking whether to buy an x2 or x3 and almost all people that I know would say the X3 is hands down the best value processor, so I'm assuming people bought the X3 over the X2 and demand rose for those x3s so AMD just started doing the cutoffs again.
What could I compare my Phenom II x3 unlocked to?
Would it be better to compare it to the 810 or 845, or could I reasonably compare this to a 955 or 940?

 

[Sylvanas]

Originally posted by: alrightgame
I recently purchased a Phenom II x3 that unlocked to a quad core. Other then requiring a .025 voltage bump every 200 Mhz after 3.0 Ghz, it seems to overclock the same stable as any other quad core.
My highest overclock was 3.6Ghz at 1.4v and it reached temperatures of 56 Celsius in prime after several hours on my outdated Arctic Cooler 64 Pro.
I have not tried more because of my cooler and I like to keep my temps below 55C.
I'm sure if I used a Xigmatek Dark Knight this would be stable 3.8Ghz at 1.45V.
The only quirk I've found is the 4th core runs about 20-40 seconds behind after a 10th prime iteration, so it seems to be a bit slower then the other cores, and I can't tell for sure what the core temps are in Everest, but I assume it is lower then CPU temp as with usual core temps.
Other then the rather high voltage required to run the unlocked 4th core, could I assume this was just a demand lockout on AMDs part?
It makes sense as when the Phenom II x2s were released, people started asking whether to buy an x2 or x3 and almost all people that I know would say the X3 is hands down the best value processor, so I'm assuming people bought the X3 over the X2 and demand rose for those x3s so AMD just started doing the cutoffs again.
What could I compare my Phenom II x3 unlocked to?
Would it be better to compare it to the 810 or 845, or could I reasonably compare this to a 955 or 940?

This is nothing to do with the cores. It's the way Prime95 schedules tasks and distributes load, cores will always finish the iterations before others no matter the CPU. An unlocked X3 (now an X4) will perform the same as any other X4 at the same frequency.

 

[alrightgame]

I love telling my Intel friends that I got a quad core that competes with their Q9550s for 120 dollars. Anyway, thanks for the info.

 

[drizek]

the X3 has the full 6mb of cache, unlike the 8xx series. It is basically just a 9xx with a little bit of inconvenience and the potential for some bad luck.