Upgrading 2400 to 2500k

[mick500]

I have a 670 which has been suffering from a bit of stutter lately and it was suggested to me in another forum that it may be my cpu is bottlenecking me ever so slightly, so i am looking into getting a i52500k at this stage, just wondering if there are any decent heatsinks out there that dont require a backplate cos im no professional and dont particularly fancy taking out the motherboard to install the backplate which is what would be needed, right?

 

[computernewb]

i5 -2400?

thats not bottlenecking your 670

and it is not worth upgrading to a i5-2500k

 

[amuffin]

Hell no.

 

[mick500]

i wouldnt have thought so either, but they reckon in the 64 player games in bf3 that it would be?

 

[computernewb]

no. i5-2400 is a high end gaming cpu. and with your 670 you should have no problems with any games.

did the stuttering happen recently?

 

[mick500]

yeah, i personally thought it was the driver update for the 670, but soon as i mentioned i5 2400 every one was sayin well theres your problem, i think the i5 2400 is under rated tbh. They got me to do some benches using 3dmark 11 , i dont even know what those scores mean lol, but i got 9000 overall and 6900 for the cpu part, i dont know if thats good or bad? the cpu did seem to struggle a bit, only going around 27 fps for the cpu part of the test.

 

[mick500]

loks like they were right, i just been doing some tests with the cpu and gpu usage displayed aswell and 90% of the time the cpu usage is around 60% and the gpu usage is 95-99% which is good right? but then cpu usage goes p to 80-90% and gpu usage drops to 70-80% which is the bottleneck from the cpu yeah?.. thats in bf3.

 

[bwrlane]

It's not true at all. The i5 2400 is a very fast CPU. The 2500k is not much faster unless you overclock heavily.

Both are more than equal to a GTX 670

Remember, if you have a P67 or Z68 motherboard, you can overclock your 2400. By enough to make it worth doing.

 

[satyamdubey]

loks like they were right, but then cpu usage goes p to 80-90% and gpu usage drops to 70-80% which is the bottleneck from the cpu yeah?.. thats in bf3.

not a bottleneck in the strictest sense. a bottle neck is evident only when either one of the component tops out while the other still has juice in it. say if a gpu sits at 60% and the processor is 100% on all cores then a cpu bottleneck is evident. you cpu is not topping out yest and then there is turbo still left.

how are the temps?

 

[satyamdubey]

two interesting things to look at
a 7970 is as strong as a GTX 670 if not a bit stronger only: http://www.tomshardware.com/forum/379159-33-7970
so with that established, the following link shows Skyrim which is cpu intensive with 7970 being used for graphics: http://www.tomshardware.com/reviews/gaming-fx-pentium-apu-benchmark,3120-3.html

the whole point here is that even a g860 handles it fairly well and with i3, the bottlenecks are not evident. And specifically the 2400 should not be a problem.

 

[stickmansam]

You might also want to check how much the cores are being used. I play World of Tanks which is stpidly single threaded so while I only run about 30% CPU usage, 1 core is at constant 100% load. This was with a 4.1ghz 3570k, gonna push CPU more once I get stronger graphics that need it

http://www.techspot.com/review/603-best-graphics-cards/

The CPU is a i7 860 and with CF5850
Minimum frames is the most telling

Found most of this info while browsing this thread a while back

http://forums.anandtech.com/showthread.php?t=2249262

Depending on your motherboard, if you have a z68, push the i5 2400 to max multi or even making turbo more aggressive on normal boards should solve all your issues

 

[mick500]

Yeah i was checking all the cores, all 4 are about 85-90% at the worst and the gpu drops to 70-75% , tested on a few maps in bf3 multiplayer, armored shield was a bad one for it, pretty much 80-85% cpu usage consistently.

The temps are fine, i have changed the multiplier to 38x and turned off all c-states so its a consistent 3.7ghz is what im seeing in cpu z and core temp (100x37 not 38 for some reason) at idle with stock speeds its about 28c, overclocked it jumps to 40c, at load in bf3 both temps are similar at around 67c.

I'm at a bit of a loss really. Not sure whether the driver update for the 670 is the issue which is what i originally thought, but it does seem like the cpu is struggling causing the gpu to slow and the stutter to occur.

 

[cumi2k4]

just to chip in, i agree with the others... the i5 2400 is one of high end cpu, compared with i5 2500k is maybe around 95% performance in gaming. Not worth the upgrade....

 

[mick500]

what about overclocked? and what about 2400 compared to 3570k?

 

[mick500]

think im gonna go with the 3570k?

 

[masterman467]

i think what hes trying to say is your cpu is fine. that is not the issue. try turning down some settings. how many screens you using?

 

[mick500]

Just the 1. I didn't think it was the issue either but im seein massive cpu spikes in bf3 with the overlay on and high cpu usage with hwinfo.

 

[masterman467]

what was the issue again, micro stuttering? thats usually not cpu. your gpu is very good... try puting all the setings to lowest you can and see if that fixes it. if so, its not your cpu's fault. possibly try the old drivers.

 

[mick500]

now this is happening... http://www.youtube.com/watch?v=15WPy-zCUe0

ignore the awful colours, my monitor is calibrated with spyder elite and fraps is not a fan and messes it up when i record for some reason. and ignore the stutter on this occasion, mostly fraps again lol.

 

[stickmansam]

what am i supposed to look for in that video?

 

[mick500]

you cant see it? Look at the ground, on the right at the start its on the right side, flickering, and the textures arent loaded properly. Maybe turn it to 1080p and you will see it clearer.

 

[payturr]

Hey guy, just personal question, how often do you clean out your PC & how is the airflow in it? What cooler do you use?
^ All this can affect your performance

 

[mick500]

yeah, na i clean it all the time, just added a extra fan SHOULD all be good on that front.

 

[stickmansam]

it seems that there is rendering issues either from ram/gpu/driver. It is rendering things and then unredering it.

Probably re install the game and drivers, clean out registry. Try older drivers and as a final option do OS reinstall. If the issue persists, get a replacement card or a different card.

 

[mick500]

well it hasnt happened since, was just a once off. sometimes at the start of maps it will take a sec to load everything and this is all only in bf3, if it was hardware problem it would be in every game, no?