will i see any gaming performance benefit if i overclock?

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Solution
synphul
You'll probably see some improvement. I did when playing crysis, farcry and other fps games but that was paired with an hd4850 and later a 7850. Both are stronger gpu's than the 7900 gt. Check your gaming usage using something like msi afterburner and monitor cpu usage vs gpu usage. Chances are your gpu is the bottleneck and if the cpu is constantly below 80% use in most of your gaming then overclocking may not help much.

My e8400 was oc'd to 3.6ghz and served me well with an hd 4850, the 7850 created a slight cpu bottleneck. Looking back on old benchmark tests done on crysis, to achieve 50-60fps with the 8800gt/gtx it required turning down the eye candy to low quality even at 1024x768. At high quality those fps dropped to 30-40fps at...
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E8400
4gigs ddr2 800mhz
xfx 7900gt
bioshock 1 crysis 1 lord of the rings online doom 3 half life and lastly elder scrolls oblivion

 
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You'll probably see some improvement. I did when playing crysis, farcry and other fps games but that was paired with an hd4850 and later a 7850. Both are stronger gpu's than the 7900 gt. Check your gaming usage using something like msi afterburner and monitor cpu usage vs gpu usage. Chances are your gpu is the bottleneck and if the cpu is constantly below 80% use in most of your gaming then overclocking may not help much.

My e8400 was oc'd to 3.6ghz and served me well with an hd 4850, the 7850 created a slight cpu bottleneck. Looking back on old benchmark tests done on crysis, to achieve 50-60fps with the 8800gt/gtx it required turning down the eye candy to low quality even at 1024x768. At high quality those fps dropped to 30-40fps at 1024x768. If you're using a higher resolution monitor then fps will be worse.

http://www.tomshardware.co.uk/Graphics_Cards-Geforce_8800GT-Crysis-DX10,review-29779-10.html

With oblivion the 7900gt should do ok and get close to 60fps with bloom enabled (hdr disabled, that will hurt fps) at 1024x768. Again if you're using a more modern 1920x1080 monitor then performance will be less.
http://www.anandtech.com/show/1996/6

Depending what your budget is, for around $80-100 you could significantly improve your gpu to something like an rx 460 or gtx 1050 though you'd probably run into a cpu bottleneck then. It's probably not worth investing a whole lot more into that system but if you find a good deal on a used gpu it could be worth it. Just make sure your psu will handle whatever it is if you go that route. The older higher performance gpu's could get somewhat power hungry depending on the model compared to the latest gpu's which are far more power efficient.

As an example several years ago power supplies were getting bigger and bigger. It was a race to 600w, 850w up to 1000w gpu's to support the gpu's back then. The hd 4890 recommended psu was 600w, the hd 6990 was 700w for single card systems. A current mid/high end gtx 1070 only calls for a 500w power supply and the rx 460 I mentioned only calls for 460w. Just be sure if you go looking at older used gpu's to double check using a guideline like this site.

http://www.realhardtechx.com/index_archivos/Page362.htm

That way you don't end up chasing a better gpu than what you've got off someplace like ebay that looks like a bargain and find out your power supply isn't enough, necessitating another upgrade.
 
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Solution


It will help in half of those games. However your pc is old and you should consider a new one in the future if you want to play newer games after you finished these.
 
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i have a new i7 960 desktop with an rx470 this is a spare gaming pc ment to play older titles
 
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Why not play them on that pc they should all still work fine.
 
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because my main pc is way to fast some of the games i play are hardware specific and dont play well with my new gen pc

plus this is the desktop i always wanted back when the E8400 was released but could never afford it
 
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Fair enough. However only HL2 will have a problem on the new pc the others will be fine. What I do recommend is get a 20$ hd 4850 and you'll be fine to play games from that era. Enjoy the older games.
 
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the major game in question is starship troopers from 2005 its very picky on the gpu you use anything above an nvidia 8000 series or an amd 9800 series and the game wont boot

 
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