Cpu-Gpu Bottleneck

I plan to buy a Gtx 560 SC(Non Ti) for my old pc my pc currently has a stock dual core and after looking around i hear i may be bottle necking, my question is if i get a quad core later on will the pc still be bottle necking or will it be fine
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  1. tough to make decisions when you're the only one to knows what your hardware and software is.
  2. Operating System: Windows 7 Home Premium 64-bit
    System Manufacturer: eMachines
    System Model: ET1330/ET1331
    BIOS: Default System BIOS
    Processor: AMD Athlon(tm) II X2 235e Processor (2 CPUs), ~2.7GHz
    Memory: 6144MB RAM
    Available OS Memory: 5888MB RAM
  3. I would make sure your power supply can support a 560. The 560 requires a minimum of 450W power supply. I am doubting your PC has that much juice.
  4. im buying a 500w psu 12v on 1 rail with 34 amps
  5. From what I can tell your PC has a 250W power supply, way below the minimum. If that is the case, your PC wont even comfortably support a low end card. If you are going to upgrade your graphics card, you are going to have to also upgrade your power supply. And yes, your processor will no doubt bottle neck a GTX 560. You will need a lower end card or an upgrade to your entire PC in order to support a GTX 560.
  6. A new power supply is a must. Go high quality name brand though, cheap power supplies, are just that, CHEAP. Go with a Corsair, Antec or an 80+ PSU. If building a new computer is out of the question, or not in your wallet right now. I would downgrade to a less expensive GPU. You will pay less and probably not have to worry about bottle necking. No point in getting a new GPU that your PC will struggle to support.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16814150540

    The Radeon 6770 is a very capable card and is nearly $80-100 cheaper than some GTX 560's. It will do a pretty good job with most games at full 1920 x 1080
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