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overclocking cpu no performance increase

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October 4, 2013 6:18:41 AM

i have c2d e7400 2.80ghz, 4gb ram, gtx 650.
my system is prebuild so i cannot overclock through bios.
then i used setfsb and overclocked it to 3.25 ghz from 2.80ghz at stock cooling and cpuz show 3.25ghz speed but in games like gta iv, crysis 3, mafia 2 or dolphin emulator(which soley depends on cpu clock), there is not even 1 frame increment.
a b K Overclocking
October 4, 2013 6:25:28 AM

it's because that cpu is very limited, you're looking at a old lga 775 (not saying its bad but yea its old). Increasing the clock speed increased its speed slightly but it still has to render everything which it's bottlenecking to do.
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October 4, 2013 6:28:34 AM

HillBillyAsian said:
it's because that cpu is very limited, you're looking at a old lga 775 (not saying its bad but yea its old). Increasing the clock speed increased its speed slightly but it still has to render everything which it's bottlenecking to do.


I dont get it, forget about everything cpumark didnt increased 1 point score.
i saw many people which overclocked c2d e7400 and saw difference.

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a b K Overclocking
October 4, 2013 6:38:26 AM

Ok ill start off with, you can't overclock because its a prebuilt locked bios computer. So you use a overclocking software that supposedly increases the frequency of your cpu. Now since your running a extra program trying to get more performance out of it, what's actually happening is it has to process more and possibly that boost in frequency is just covering that so you gain nothing. Next up it could be your harddrive depending on what it is. If it's an IDE harddrive you are probably hitting it's limit on data transfer so any overclocking you do is still restricted by the amount of data that can go through a ide cable. Next would be the cpu itself. It may think its overclocked but it still has to do everything like it did before. Lets say i pulled out my old dell computer with a 2.8ghz p4 478 socket and overclocked it to 3.5ghz, Should i see a increase in speed? depends on the application. Multithreaded applications require more processing power so it still lacks it even though it is clocked faster. Think of it this way. You have a 4 lane highway from your harddrive and your cpu has 3 lanes. You increase the speed limit, but it causes more congestion at the point where the 4 lane highway becomes 3.
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October 4, 2013 6:44:40 AM

HillBillyAsian said:
Ok ill start off with, you can't overclock because its a prebuilt locked bios computer. So you use a overclocking software that supposedly increases the frequency of your cpu. Now since your running a extra program trying to get more performance out of it, what's actually happening is it has to process more and possibly that boost in frequency is just covering that so you gain nothing. Next up it could be your harddrive depending on what it is. If it's an IDE harddrive you are probably hitting it's limit on data transfer so any overclocking you do is still restricted by the amount of data that can go through a ide cable. Next would be the cpu itself. It may think its overclocked but it still has to do everything like it did before. Lets say i pulled out my old dell computer with a 2.8ghz p4 478 socket and overclocked it to 3.5ghz, Should i see a increase in speed? depends on the application. Multithreaded applications require more processing power so it still lacks it even though it is clocked faster. Think of it this way. You have a 4 lane highway from your harddrive and your cpu has 3 lanes. You increase the speed limit, but it causes more congestion at the point where the 4 lane highway becomes 3.

i dontknow about ide thing but my hard drive is sata and many people who overclocked it actually saw difference then why cant i
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a b K Overclocking
October 4, 2013 6:50:00 AM

I consider OCing physically increasing frequency - not some software solution.
You need to think about new hardware.
-Bruce
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October 4, 2013 6:52:46 AM

dish_moose said:
I consider OCing physically increasing frequency - not some software solution.
You need to think about new hardware.
-Bruce


u have i7 930 overclocked it to 3.98ghz, did u saw difference, if yes then why cant i see the difference after overclocking, not 0.0001 frame
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a b K Overclocking
October 4, 2013 6:54:33 AM

Because I set the frequency of my cpu in BIOS - and yes it does make a difference.
-Bruce
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October 4, 2013 7:04:25 AM

dish_moose said:
Because I set the frequency of my cpu in BIOS - and yes it does make a difference.
-Bruce


then u think fsb is fake overclocking right
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a b K Overclocking
October 4, 2013 7:06:35 AM

I believe it only works with supported hardware. I think it will work with a lot of hardware that is manually OverClockable.
-Bruce
Edit: what exactly is your computer?
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October 4, 2013 7:09:55 AM

dish_moose said:
I believe it only works with supported hardware. I think it will work with a lot of hardware that is manually OverClockable.
-Bruce
Edit: what exactly is your computer?


its compaq sg3750il, and is there anything i can do to improve my cpu speed.
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Best solution

a b K Overclocking
October 4, 2013 7:12:49 AM

http://www.overclock.net/t/56987/how-do-you-overclock-c...
look here - I think you may be out of luck.
-Bruce
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