Slow Core i5 or slow owner?

gilbadon

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I feel my core i5 750 is performing way under par. I have it overclocked to 3.8 GHz which resulted in a 3DMark Vantage 1.0.2 CPU score a little above 17000. I looked at the Tomshardware article on this chip and they got a score in the 50,000's with a slightly higher clock. I'm not sure if they used different settings, but its buggin' the crap out of me how bad my processor did in comparison. Any hints, ideas, or tips let me know. (I don't think its heat, I've never seen it above 40C)

Another thing, when running prime95 I noticed my core #3 was running on average about 5C colder than every other core. Is this normal?

Corei5 750 @3.8
COOLER MASTER Hyper 212 Plus
MSI P55-GD65
G.SKILL Trident 4GB DDR3 2000
Rosewill RP600V2-S-SL 600W
Rosewill Wind Knight Case
XFX HD-487A-ZWFC Radeon HD 4870 1GB
Western Digital Caviar Black WD7501AALS 750GB
LITE-ON CD/DVD Burner
 

andy5174

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Mar 3, 2009
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19,860

Which Article?

The PCs tested by them might be with better gfx and a SSD. Hence, an overall better score than you.
 

gilbadon

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Thanks welshmousepk and andy. I feel a lot better about my system performance now. Does anyone know about my second question though? It seems like a good thing, a core running cold, but I'm not sure what to think of it.

Original Question

{Another thing, when running prime95 I noticed my core #3 was running on average about 5C colder than every other core. Is this normal?}
 

gilbadon

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Sounds good to me. Thanks for the help. Just making sure the the quality of my gear is where its supposed to be.
 

andy5174

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Mar 3, 2009
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Yeah.

My core#1 is about 5~6C higher than the rest and I have heard many i5 owners have the same problem.

I guess that it is due to the bad temp sensor installed by Intel intentionally to stop peoples from extreme OC.
 

gilbadon

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Haha what jerks... Thank you. You have been a big help.
 

dmd71

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Dec 16, 2009
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I see you have an ATI GPU which does not have phsyx, This is why your CPU score is so slow, check the article you read and I am sure the test machince had an Nvidia card.
I just recently switched to an ATI GPU from nvidia on an I7 860 and my CPU score dropped in 1/2. Its just physx enabled machines get a bonus on CPU score.
 
As surprisingly few people have mentioned on this thread, Vantage's CPU score includes Nvidia PhysX. If you don't have a PhysX capable system (Nvidia 8000 or later), your CPU score will be MUCH lower. It's not a problem, and your score is about where I'd expect an overclocked i5 to be.

My i7 sits around 23k (@3.7GHz - I can't remember the 4.2GHz score), for reference.
 

andy5174

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Mar 3, 2009
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You should mention that you are with i7 EE so that we would feel much better. :kaola:
 

Ancient_1

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Oct 18, 2006
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I see that the main question was answered and just to see how your i5 compared to my i7 I ran a couple Vantage cpu tests to compare.
I can't believe they ran the cpu tests with PhysX enabled since it makes hard to compare to other systems and is not allowed on any attempt of a record.

As for the difference in temp between cores on my i7 and many others I have seen it is quite common to have one core cooler than the others, on mine it is 6~8° on core 4 and core 1 is usually a couple degrees warmer also. I have had a bad mount and the difference has stayed the same just higher temps and it's always been core 1 the highest and core 4 the lowest as read by real temp.

L7L.jpg


Without HT enabled
3DMCPU.png


With HT enabled
3DMCPUHT.png