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Is a C2D really enough for modern high-end graphics cards? - Page 4

post #31 of 64
Thread Starter 
Quote:
Originally Posted by KBcobra;12624544 
What will happen is you see about a 5-10 fps between both cpus. I found that old core 2 duos have very small bottlenecks. On my i3 at 4.5 I can't tell a bottleneck exist. Its just like a 930 I had. You will see a difference just very small.

You have a GTX 460 though, which is not as fast as my HD 5850, so you won't see as big a bottleneck as I do.
Quote:
Originally Posted by turrican9;12624567 
Here is a comparison...

Core2 Duo E8600@3.33GHz VS i5 2500K@3.3GHz

Pretty good, except the only games I think are worth looking at are Crysis, Far Cry 2 and maybe DoW (because I play CoH and DoW runs on rev. 2 of the CoH engine).
Quote:
Originally Posted by Mygaffer;12624635 
I hope you are actually going to test for a cpu bottleneck. On the same machine, same cpu, same gpu, you have to run the same benchmark at different resolutions, from low resolution to highest resolution.

If the frames per second don't really change as resolution goes up then you have a true cpu bottleneck.
I'm changing CPU, MB, and RAM, so they'll be almost identical.

I've not been testing at different resolutions, but I'm watching GPU and CPU usage.

I can include low res, low graphics or just low res benches if needed, I just have to know which tests to run before I get my i5 because I'm selling the C2D.
Edited by B!0HaZard - 3/5/11 at 3:55pm
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post #32 of 64
Against a Core 2 Duo, sure it will. A Core 2 Quad (even a Q6600) shouldn't; at least not if clocked at 3GHz or higher.

Also, that comparison with the Core 2 Quad Q9550 and Core i7 860 does absolutely no justice to the C2Q. How the hell can you be claiming a 15% difference when the FPS are over 100 in more than half the games? Real difference on average is around 5%.
    
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post #33 of 64
the c2d is going to fall way behind that 2500 , its obvious .. i had a c2d e7500 with a 5850 and now upgraded to my sig rig .. the difference was major .

like going from ps1 to ps3 .
    
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post #34 of 64
Thread Starter 
Quote:
Originally Posted by mothrpe;12624623 
toms hardware did an excellent article on cpu bottlenecking showing performance and load on cores in gaming.

http://www.tomshardware.com/reviews/game-performance-bottleneck,2738.html

Whoops, just noticed this.

The thing is that they aren't doing the same thing as I am. They're looking at number of cores used while I'm looking at cores + architecture. It's 2 different things and their i5 with 2 cores =/= a C2D.
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post #35 of 64
Make sure you include a real clock-for-clock test. People seem to forget that the i5 2500K/i7 2600K have Turbo Boost and actually run at 3.7/3.8GHz. As a result, that E8600 vs. 2500K bench was closer than it may seem.
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post #36 of 64
Thread Starter 
Quote:
Originally Posted by aaronmonto;12624746 
Make sure you include a real clock-for-clock test. People seem to forget that the i5 2500K/i7 2600K have Turbo Boost and actually run at 3.7GHz. As a result, that E8600 vs. 2500K bench was closer than it may seem.

Well, I'll probably turn Turbo Boost off and run at stock (3.3 GHz) / 3.8 GHz / max OC I can do, but it'll take some time. Or maybe I'll skip 3.3 GHz since no one would run it at 3.3 GHz (they'd run it at stock with Turbo) and go right to the clock-for-clock.

A lot of people are interested in different things and it'll take me hours upon hours of benching to get it all done, so we'll see what I decide to do.
Edited by B!0HaZard - 3/5/11 at 4:49pm
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post #37 of 64
Of course it'll be a major bottleneck in cpu intensive games. In gpu intensive games like RE5 the c2d will give about the same performance. I'd be interested in an e5200 bench since those can be found for around $40ish.
    
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post #38 of 64
post #39 of 64
Quote:
Originally Posted by B!0HaZard;12624636 
You have a GTX 460 though, which is not as fast as my HD 5850, so you won't see as big a bottleneck as I do.
My GTX 460 is at 900mhz so isn't too far off.
post #40 of 64
Thread Starter 
Quote:
Originally Posted by KBcobra;12626000 
My GTX 460 is at 900mhz so isn't too far off.

Ouch, didn't know the stock speeds. Yeah, that's a pretty sweet OC.
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