Pentium D 925 @ 4GHz bottleneck

whooleo

Distinguished
Aug 8, 2010
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I have an old school rig for older games that don't play nicely under newer Windows OS's and graphics cards. I'm wondering if my Pentium D 925 @ 4GHz (1066MHz FSB) is being held back by my GeForce 7900 GS overclocked to 550MHz/720MHz. If so would a GeForce 7900 GTX or 7950 GT be a better fit for the CPU?