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i7 920 @ 4 GHz does not require custom cooling

post #1 of 10
Thread Starter 
Quote:
Originally Posted by SmokinWaffle View Post

CoreTemp reports my TJMax as 95C, either way it's 5C~ difference, but 100C will damage your CPU, 95C will still do some damage, but not as much.

It should never even get close to those temperatures anyhow.

My 4 years experience with this processor proves that, at least for my unit, this statement is bull****t.
Now I want you to look at this picture:

Xkz1b5mW.png

This is a stable overclock. It's 4 GHz @ 1,23V. These core temperatures are achieved with the overclock at 25ºC ambient temperature. Prime95 is set to In-place large FFTs (maximum heat). Days that are 30ºC or more makes my i7 come very close to throttling (100ºC). This is also stock cooling, which proves for me that 90ºC overclocks on stock coolers totally discard any need for extra cooling.

What I want to inform everyone is that, if you can get a reasonable overclock like this and be around 5~10ºC under TJ Max you are totally fine. I've never heard of a modern processor dying because of hitting TJ Max. I also once did a test where I would make Prime95 run on background for 1 week, 27/4 with an overclock that purposely made my i7 hit 100ºC 100% of the time, throttling a bit. Nothing happened, and my i7 still performs the same numbers on benchmarks.

Also, with this 4GHz overclock I only get a pathetic 6% gain of performance on PassMark. This makes me think that overclocking a modern processor is almost pointless. Seriously, 6% is ridiculous. On my Radeon 5850, on the other hand, the jump of 725 MHz to 930 MHz results me a 46% performance gain on games. On this scenario an overclock make sense, because the results justify the overclock, but not with an i7.

TL;DR
overclocking a processor is idiotic
overclocking a VGA is not


All of this is also only my opinion and experience specifically with my i7 920 unit, so hate on that as much as you want.

Just breaking some paradigms.
Edited by Suncatcher - 4/1/14 at 3:39pm
post #2 of 10
Quote:
Originally Posted by Suncatcher View Post

TL;DR
overclocking a processor is idiotic

No, that statement sure is.
If you overclocked your CPU by over 50% and gained a 6% performance boost, that's a sign your bench is either causing your CPU to throttle, or the bench might be bad.

Overclocking a CPU in my experience leads to immediate, noticeable, significant gains.
__% of Overclock = __% of gain, give or take a little due to things such as RAM speed unchanging/not getting more cache.

From 3.4GHz to 4.0GHz with my i7 I noticed about 15% improvement in all tasks. Encoding/Gaming etc.

It's April 1st, I take it you wanted to rebel and just troll instead of pull "pranks", lol.
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post #3 of 10
Quote:
Originally Posted by Suncatcher View Post

TL;DR
overclocking a processor is idiotic
overclocking a VGA is not
I'm gonna give to you a fact on my CPU and not an opinion.
My Phenom II X6 1090T at stock, stock 3.2Ghz+Stock NB bottlenecks my 6850's in BF3 playing @ 1080p(havent tried anything else).
My 4.1Ghz overclock + 3.2Ghz on the NB eliminates the bottleneck completely, the results are night and day, you can even feel it inside windows.

Not to mention the number of Intel CPU's that come at 3.5Ghz~stock and overclock 1Ghz over stock speed, I would assume that this would give a significant boost.

Regardless of that, killing a CPU is really hard and heat might not be the bullet that kills it if it is under control.
post #4 of 10
Overclocking my CPU has been so much useful cutting down rendering time on my videos and modeling. It really depends on what you user your computer for.

You may think that overclocking a processor is idiotic, but I strongly disagree against that.
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post #5 of 10
first time poster


claims overclocking is stupid


on overclock.net



tardometer is off the charts captain, what do we do????
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post #6 of 10
Quote:
Originally Posted by szeged View Post

first time poster


claims overclocking is stupid


on overclock.net



tardometer is off the charts captain, what do we do????

Hard to take anyone serious today, but if hes serious, he'll figure out hes on the wrong forum real quick.
post #7 of 10
Quote:
Originally Posted by szeged View Post

first time poster


claims overclocking is stupid


on overclock.net



tardometer is off the charts captain, what do we do????

hahahahahahha proof.gifbiggrin.gif
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post #8 of 10
today is April 1st. good one...?
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post #9 of 10
Thread Starter 
Didn't catch as much fish as I wanted to, but it wasn't that bad.
post #10 of 10
lol, it was a valiant effort though thumb.gif i bet there were lots more people who were too shocked to even post.
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