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CPU Bottleneck

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10 Aug 2009
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695
Location
Malvern
Morning, My mate was asking me last night about upgrading his set up,money is tight,but he says he could stretch to a new graphics card.His CPU at the moment is an E8400.I said that his CPU should be ok.especially if he O/c,but he isnt to keen on doing this.Will his CPU bottle neck say a HD7850?
 
When I had a e8400 I found it started to bottle neck my xfire 5870s when bench testing so I guess a 7850 could cause bottle necking it. Depends what he will use it for.

If it going to be used for heavy demanding games it could be an issue.
 
flight sim is more CPU based so i dont think it would bottleneck on that i would say all in all yes it will bottleneck in some games

I had an E8500 @ 4 GHz and it bottlenecked a single HD6870. It depends on the game though so it's difficult to say.

Well I upgraded my [email protected] to i5 [email protected] just under a yr ago, cos I thought it was bottle necking my HD6950. But I didn't have a great improvement on my fps in games, and Im kind of gutted as I upgrade sooner then was needed.. I think my E8400 system would still be running games fine even now..... Gutted:mad:

Basically I would look at some game benchmarks for your gpu, and see if its worth upgrading yet.
 
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Well I upgraded my [email protected] to i5 [email protected] just under a yr ago, cos I thought it was bottle necking my HD6950. But I didn't have a great improvement on my fps in games, and Im kind of gutted as I upgrade sooner then was needed.. I think my E8400 system would still be running games fine even now..... Gutted:mad:

Basically I would look at some game benchmarks for your gpu, and see if its worth upgrading yet.
It's all about knowing the games that you play whether it is more demanding on CPU side, or graphic side.

I overclocked my E5200 to 4.25GHz (effectively a E8xxx dual-core with less cache), and it is bottlenecking even my 9800GTX+ in Guild Wars 2...
 
It's all about knowing the games that you play whether it is more demanding on CPU side, or graphic side.

I overclocked my E5200 to 4.25GHz (effectively a E8xxx dual-core with less cache), and it is bottlenecking even my 9800GTX+ in Guild Wars 2...

Guys said on here ages ago that the extra cache makes quite a big diff.

I said to a guy once on here, I get 12secs with 1M superpi with my [email protected] and this guy was shocked as he had a dual core with less cache, overclocked higher and he was getting a higher sec in superpi then I was.

I get 8secs in superpi with my [email protected] now:cool:
 
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as bacon said it may not be the graphics bottlenecking it especially with flight sim even some people witht the top end systems struggle with it flight sim is a badly writen game by microsoft and the coding is shocking look at there forums and see how many forums
 
If in 'flight sim' you mean FSX, I had a I5 @ 4.6 and it ran like a 3 legged dog if I turned the settings to max and this is with 2*680's. I would advise your mate to get the 7850 and see. If he isn't happy with performance, he can then upgrade further.

Don't rush out and upgrade everything, just in case the games he plays are ok with just a new GPU.
 
Thanks for your imput everyone,my advice to my mate will be O/C the knackers off your CPU and maybe get a7850 that was suggested,thanks.
 
yeah i would say get one ond oc the hell out of the cpu you might also want to look see if you can get your hands on a cheap quad core that might help if you do run into any bottlenecking
 
Guys said on here ages ago that the extra cache makes quite a big diff.

I said to a guy once on here, I get 12secs with 1M superpi with my [email protected] and this guy was shocked as he had a dual core with less cache, overclocked higher and he was getting a higher sec in superpi then I was.
Of course more caches help improve gaming performance (I never said it won't), but there are places which my GPU usage would dip to 60%, and that's just a 9800GTX+....having more cache on the E8xxx CPU won't make big enough of a difference to increase the GPU usage by 40% as at the end of the day, they are both Wolfdale...
 
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