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The Radeon HD 5770 or the 5670

Hi guys and gals, my question is whether or not I should get a 512MB 5670 http://www.microcenter.com/single_product_results.phtml?product_id=0328113 or the 1GB 5770 http://www.microcenter.com/single_product_results.phtml?product_id=0326389. I'm asking because I only have a 32-bit OS and I'm worried that upcoming games might require 3GB of RAM just to play under Vista and I don't plan on upgrading to a 64-bit OS anytime soon. My monitor is set at 1680x1050 and I want to use this card for 2+ years with most games set at at least medium-high settings.
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  1. Best answer
    Strange, yet refreshing to see someone concerned about how much system memory they lose due to how large their GPU frame buffer is. However, given that you want the system to last another 2 years or so without sacrificing much detail quality, a more powerful 5770 seems like the obvious choice.

    A 5670 like that one offers similar performance to tried and true 8800GT/9800GT cards, while 5770's are close to 40-50% more powerful than those cards.

    I understand the concern regarding the additional loss of system RAM, and how more and more titles are gobbling up RAM. I realize you don't want to do it, but migrating to a 64-bit OS would be an immediate solution to the problem. Most gamers saw the advantage long and ago and moved to 64-bit XP, Vista, and now Win7, and generally with little or no regrets. It might be time to just bite the bullet...
  2. The HD5770 is the right choice here. The cards memory will not have any affect on you system memory.
  3. Are you sure, rolli?

    It's been my experience that in a 32-bit system with 4GB installed, GPU memory (frame buffer) capacity directly affects the amount of available system memory. That amount is always subtracted from available memory. Typically, a 32-bit system with 4GB of RAM and a 512mb card reports 3.25GB available. When a 1GB card is used in the same system, system memory drops to 2.75GB available. I experienced that problem in my old XP system about a year and a half ago when my 8800GT 512mb died and I replaced it temporarily with a 4670 1GB.
  4. Except that my system is an old Dell Dimension E520 I got over 3 years ago. So it's either this or a get another PC further doen the road. Dell does offer Vista 64-bit drivers except for the network drivers. Anybody got a Vista 64-bit DVD and licence I can get for under $50(that's legal)?
  5. RazberyBandit said:
    Are you sure, rolli?

    It's been my experience that in a 32-bit system with 4GB installed, GPU memory (frame buffer) capacity directly affects the amount of available system memory. That amount is always subtracted from available memory. Typically, a 32-bit system with 4GB of RAM and a 512mb card reports 3.25GB available. When a 1GB card is used in the same system, system memory drops to 2.75GB available. I experienced that problem in my old XP system about a year and a half ago when my 8800GT 512mb died and I replaced it temporarily with a 4670 1GB.

    http://www.microsoft.com/whdc/system/platform/server/pae/paemem.mspx
    The interesting thing here is the 2GB limit and the 3GB switch.
  6. If you want to play games then you wouldn't necessarily need a legal version, I'm not recommending that you use an illegal version though.
  7. Thanks again everybody for all the help, I've decided to get the 5770 and later if I can to get Vista 64-bit if I can (I know 7 would be better but I want to stay on the safe side since Dell doesn't offer Windows 7 drivers at all).
  8. Best answer selected by mister g.
  9. mister g said:
    Except that my system is an old Dell Dimension E520 I got over 3 years ago. So it's either this or a get another PC further doen the road. Dell does offer Vista 64-bit drivers except for the network drivers. Anybody got a Vista 64-bit DVD and licence I can get for under $50(that's legal)?

    You can get Win 7 64-bit "System Builder" or "OEM" versions for roughly $100 online, sometimes less. The difference between them and the "Full" versions is though fully licensed, you only get 30-days of support from Microsoft as opposed to 1-year. You could use an Upgrade version, too. Upgrade versions do allow for clean installs, though sometimes a "trick" or two is necessary.

    And Win 7 is so closely based on Vista that drivers designed for Vista usually have no issue within 7.
  10. I like Windows 7 but I'm going to have to say no. Just because I don't feel like starting a new post which one would be better, the Radeon 5450 or the Geforce 9400, just asking? One more thing, I'm going to wait for the new Southern Islands chips. The 6770 based on Wikipedia stats is a little better then the 5770 and based off a lot of articles of Google and Bing should be more efficient.
  11. This topic has been closed by Mousemonkey
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