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Prime95 vs. Intel burntest check out the results.

post #1 of 21
Thread Starter 
I recently overclocked my cpu to 3.0ghz with a 1.27vcore (board wont let me go any lower *cough* Intel mobo.)

So I decided to use prime 95 and then Intel burntest after my OC and here are the difference in load temps.





I think I know what burn test I will use to get the most stressful testing.

I also notice that the Intel burn test gets a full load a lot faster than prime95 and doesn't take long to get to the max temps.
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post #2 of 21
Yeah intel burn test makes the cpu work more than prime 95
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post #3 of 21
Thread Starter 
Quote:
Originally Posted by Nelson2011 View Post
Yeah intel burn test makes the cpu work more than prime 95
I think that is because the intel burn test was designed for this and read somewhere that prime95 is used as a stress tester but wasn't originally designed to. don't know if thats true or not?
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post #4 of 21
Intel Burn test is definitely more intensive than prime95, I also get about 4C higher on all cores when running it compared to p95.
    
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post #5 of 21
Quote:
Originally Posted by urgrandpasdog View Post
Intel Burn test is definitely more intensive than prime95, I also get about 4C higher on all cores when running it compared to p95.
Funny enough, I had ~10-20C difference, something around 80C with burn test and 65C with orthos. Good thing my Q6600 didn't melt
    
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post #6 of 21
And here is why IBT draws so much more power and puts out so much more heat than Prime95...

As you can see, IBT executes almost twice as many instructions per clock (yes I know it's an old version, I took these screen shots two months ago):





Quote:
Originally Posted by JesseS420 View Post
I think that is because the intel burn test was designed for this and read somewhere that prime95 is used as a stress tester but wasn't originally designed to. don't know if thats true or not?
Prime95 was designed to test for prime numbers for the distributed computer project GIMPS.

It was not designed for stress testing. However, since it is a very heavy real world load (some people do run distributed computing projects 24/7), it certainly has it's uses as a stress test.
post #7 of 21
Thread Starter 
Quote:
Originally Posted by BigFan View Post
Funny enough, I had ~10-20C difference, something around 80C with burn test and 65C with orthos. Good thing my Q6600 didn't melt
I have never used Orthos and i don't really plan to.
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post #8 of 21
What settings should I use to optimize BurnTest for CPU testing as opposed to RAM testing? My RAM has checked-out fine with Memtest86+.
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post #9 of 21
Orthos is just Prime95 with a different UI.

IBT also gets my X3350 (Q9450) much more than 4C warmer than Prime95. It's closer to a 20C difference.
post #10 of 21
Core Damage
http://damage.vigilantesoftware.com/

Suggest people use that for atleast 10min and see what temps they can get from it; seems to be higher than prime or IBT for me atm being that IBT doesn't seem to work well for i7, but this app has no problem pushing it.
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