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Quad Cores
- Thread starter ithaqua
- Start date
Associate
- Joined
- 25 Jul 2006
- Posts
- 276
native means new design technology and not just 2 cpu's whacked on one die
I had a quad qx6700 and went back to an x6800. I never really used all 4 cores and found no real benefit (except maybe 3dmark), but lots of disadvantages.
For starters I am sitting here with an x6800 with a mild overclock to 3.3ghz. TAT and CoreTemp show this idling at an unbelievable 29 degrees (in a cold room I might ad). Hard to believe. And running Orthos over 5 hours I never saw it once go over 54 degrees in a warm room. On the Quad, at 3.3ghz, all 4 cores idled between 40 and 50 degrees. Running Orthos on just cores, and 2 of them would hit 80, the other 2 - high 70's. I had to turn up my Tuniq Tower from 1250rpm to full speed to get any drop in temps worth talking about. I also found clock for clock the x6800 was faster in benches. I have read this is down to the way windows deals with multithreaded programs and also overhead having to handle 4 cores. Anyway, am glad I was able to swap my quad for a mates x6800. I am now overclocking like mad and 3.6ghz is 2 hours stable in Orthos right now. Still has not broken 55 degrees.
Regarding native quad core - not sure how this is going to work. But had a Precision 490 workstation on loan from work. This had 2 x dual cores (Xeon 6150's) and only for the poor latency on the FBDimms would have been a screamer. Each cpu had it's own dedicated 1333 front side bus. So effectively I had quad core with 2 front side buses. As far as I know the current quad cores on desktops share the same front side bus as it's 2 dual cores stuck together. So when people talk about native quad core maybe they are talking about dedicated buses for each core or each dual core.
For starters I am sitting here with an x6800 with a mild overclock to 3.3ghz. TAT and CoreTemp show this idling at an unbelievable 29 degrees (in a cold room I might ad). Hard to believe. And running Orthos over 5 hours I never saw it once go over 54 degrees in a warm room. On the Quad, at 3.3ghz, all 4 cores idled between 40 and 50 degrees. Running Orthos on just cores, and 2 of them would hit 80, the other 2 - high 70's. I had to turn up my Tuniq Tower from 1250rpm to full speed to get any drop in temps worth talking about. I also found clock for clock the x6800 was faster in benches. I have read this is down to the way windows deals with multithreaded programs and also overhead having to handle 4 cores. Anyway, am glad I was able to swap my quad for a mates x6800. I am now overclocking like mad and 3.6ghz is 2 hours stable in Orthos right now. Still has not broken 55 degrees.
Regarding native quad core - not sure how this is going to work. But had a Precision 490 workstation on loan from work. This had 2 x dual cores (Xeon 6150's) and only for the poor latency on the FBDimms would have been a screamer. Each cpu had it's own dedicated 1333 front side bus. So effectively I had quad core with 2 front side buses. As far as I know the current quad cores on desktops share the same front side bus as it's 2 dual cores stuck together. So when people talk about native quad core maybe they are talking about dedicated buses for each core or each dual core.
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