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Will my CPU bottleneck?

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  • Graphics
Last response: in Graphics & Displays
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September 15, 2014 5:25:38 AM

Hey guys I was wondering will my CPU bottleneck and if yes how hard will it bottleneck.

CPU: AMD Athlon X2 II 3.00 GHz
RAM: 4GB
GPU: GTX 750 (non ti)

I also want to say that I've been making a lot of threads lately and I'm sorry about it but I really don't know jack about PC building so I had to ask many questions.

More about : cpu bottleneck

September 15, 2014 5:47:24 AM

I wouldn't get a lesser card to be honnest, yes you could get better performance with a better cpu but you have "IS" what you have.

You could find a used phenom2 x4 really cheap used online.
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September 15, 2014 5:57:31 AM

Yes, it will be a bottleneck, though it depends on the game, resolution at which you play, detail level, etc.

I've tested that class of CPU extensively. Even with an older GTX 460, performance improved markedly
when moving to a faster platform. Note that the Athlon II 250 3GHz (the model I suspect you have) can
be overclocked quite well, which does help, but it'll still be lacking in various situations (lack of L3 cache,
lower IPC, etc.)

A Phenom II X4 965 will help to a degree, but its IPC is also not that great compared to modern CPUs.

What is your budget for upgrading, if at all? You could switch to a newer & much faster Intel platform,
carry over your 750. One option is to exploit the availability of used parts, eg. Z68 board, i7 2600K or
2700K, that would give a major speedup and not cost much (good Z68 boards are pretty cheap now).

Of course an upgrade to Z97 would be ideal, but that would be at the top of the cost scale.

For various benchmark results, see my site:

http://www.sgidepot.co.uk/sgi.html#PC

I have an Athlon64 X2 6000, an Athlon II X2 250, Athlon II X4 640, Ph2 X4 965, Ph2 X6 1090T, and a whole pile of
Intel chips from an ancient P4 (no HT) up to a 3930K.

My original gaming system was an Athlon64 X2 6000+ 3GHz (oc'd to 3.225GHz) with two GTX 460s SLI (about
equivalent to your 750 I expect). I upgraded to a P55 platform with an i7 870. 3D performance doubled, especially
in games like Stalker which benefit from strong CPU power. Now I use a 2700K @ 5GHz. Hmm, guess I need to
add 2700K/3930K results with 5850/GTX-460 to show best-possible scaling with the same GPU, and I also have
a G3258 to test now. Never enough hours in the day...


Note that as the resolution, detail, etc. increase, normally the dependency on the CPU strength reduces,
but if you're playing multiplayer online games, or games with strong AI elements, then a good CPU will
likely still be important.

Ian.

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September 15, 2014 7:34:40 AM

Yes, there will be bottleneck but not that so much. For GTX 750, i3 processors are better so that no bottleneck occurs. I'm using this gpu but its 2GB OC-Edition with G2020 processor. Not much bottleneck but very little. Playing games on Ultra or high settings with good frame-rates.
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September 15, 2014 7:50:32 AM

As mentioned, it depends on the game. Some games will bottleneck a lot (Stalker, Crysis),
others not so much (Call of Juarez), and it's affected by online play, resolution, detail, AI engine, etc.

Check site reviews to see how games you like to play behave based on available CPU power.

Ian.

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