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Upgrading Video Card. New PSU?

Alrighty guys, I'm finally upgrading from my NVIDIA GT 240 to something faster finally. It's about time time...so I have a few questions about some cards I found.

Here is my power supply. But only 19A on the 12V rail...
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171024

Here are the video cards I want. No I will not be overclocking. My budget is between $100-200 but I want to go cheaper just in case I need to buy a PSU.

The one feature request I am looking for is at least 2 DVI outputs because my monitors have only VGA and DVI so if I only have 1 DVI...not sure how to do the dual monitors then...not sure if you can go DVI Mini to DVI.

Radeon HD 7850
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202004
http://www.newegg.com/Product/Product.aspx?Item=N82E16814161406

Radeon HD 7790
http://www.newegg.com/Product/Product.aspx?Item=N82E16814161435

I'll also take suggestions, etc. I am open to looking at other cards.
8 answers Last reply Best Answer
More about upgrading video card psu
  1. Dedicated_Blade said:
    Alrighty guys, I'm finally upgrading from my NVIDIA GT 240 to something faster finally. It's about time time...so I have a few questions about some cards I found.

    Here is my power supply. But only 19A on the 12V rail...
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817171024

    Here are the video cards I want. No I will not be overclocking. My budget is between $100-200 but I want to go cheaper just in case I need to buy a PSU.

    The one feature request I am looking for is at least 2 DVI outputs because my monitors have only VGA and DVI so if I only have 1 DVI...not sure how to do the dual monitors then...not sure if you can go DVI Mini to DVI.

    Radeon HD 7850
    http://www.newegg.com/Product/Product.aspx?Item=N82E16814202004
    http://www.newegg.com/Product/Product.aspx?Item=N82E16814161406

    Radeon HD 7790
    http://www.newegg.com/Product/Product.aspx?Item=N82E16814161435

    I'll also take suggestions, etc. I am open to looking at other cards.

    that psu is waaay more than plenty. without sli/cfx you only need 450-550 watt
  2. So....the Amps don't even matter in this case? At all? I know some video cards have 12v rail requirements...
  3. Best answer
    Your PSU should be ok, but Coolermaster doesn't really have the track record of being reliable in the power supply area. I mean 4 12v rails?!?!? Wow lol, that says to me cheap parts so we had to add extra rails for the needed amps... I am not a PSU expert though :-\ Neither of the cards you are looking at will tax most power supplies very hard, and like squirrelboy said, that amount of watts is more than enough for most sli or cf setups... but what worries me is the quality of it. between those 2 cards I'd choose the 7850 though. I'd say give it a shot with your current PSU and then if you have problems, get a new, more reliable, and better made one.
  4. Here is a handy chart; 750w will power anything.
    http://www.realhardtechx.com/index_archivos/Page362.htm

    Since you already have a NVidia graphics card replacing it with a different NVidia card will be seamless without the need for driver clean/reinstall procedure. In the $150 price range, Tom's likes the GTX650ti or the GTX650ti boost:
    http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-3.html
  5. the heaviest drawing card, the 7850 only draws about 110w, any single one of those rails supplies roughly 228w, theoretically you could sli those cards on a single rail, although spreading the load is usually the better idea :P

    In other terms, your PSU is fine, there's plenty of juice for running one of those cards :P
  6. +1 geofelt, nice guides :-) bookmarked for future reference.
  7. The 650 Ti Boost is faster

    http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_650_Ti_Boost/25.html

    3% better performance per dollar than 7850, 22% over 7790

    http://www.tomshardware.com/reviews/geforce-gtx-650-ti-boost-gk106-benchmark,3463-11.html

    Quote:
    With the Radeon HD 7770 at $120, Radeon HD 7790 at $150, and Radeon HD 7850 above $180, Nvidia is rendering all three products ineffectual at their respective price points. With one swift stroke, the company engineered a hostile takeover of the $100-$200 market, increasing graphics performance at any given budget in that space.


    Your PSU will easily handle two of them
    http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-650ti-boost/specifications

    Thermal and Power Specs:
    Maximum GPU Temperature (in C) - 97 C
    Maximum Graphics Card Power (W) - 134 W
    Minimum System Power Requirement (W) - 450 W
    Supplementary Power Connectors - One 6-pin

    In SLI therefore 450 + 134 = 584 watts
  8. JackNaylorPE said:
    The 650 Ti Boost is faster

    http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_650_Ti_Boost/25.html

    3% better performance per dollar than 7850, 22% over 7790

    http://www.tomshardware.com/reviews/geforce-gtx-650-ti-boost-gk106-benchmark,3463-11.html

    Quote:
    With the Radeon HD 7770 at $120, Radeon HD 7790 at $150, and Radeon HD 7850 above $180, Nvidia is rendering all three products ineffectual at their respective price points. With one swift stroke, the company engineered a hostile takeover of the $100-$200 market, increasing graphics performance at any given budget in that space.


    Your PSU will easily handle two of them
    http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-650ti-boost/specifications

    Thermal and Power Specs:
    Maximum GPU Temperature (in C) - 97 C
    Maximum Graphics Card Power (W) - 134 W
    Minimum System Power Requirement (W) - 450 W
    Supplementary Power Connectors - One 6-pin

    In SLI therefore 450 + 134 = 584 watts




    Only downside is that I don't get the 3 free games >.< even though the 650Ti is just a tiny bit better. But I do get the 75$ in game coupon....but for what game? Will it even work? Now how does the 1GB 650 Ti Boost compare to the 2 GB one?
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