Upgrading the graphics card (advice greatly appreciated)

Hey, I don't know that much about gaming cards and whatnot, but I am thinking about buying the AMD Radeon HD 6870 Black Edition graphics card for my computer. (my current graphics card is a GeForce GT 545 ddr3 3gb ram.)

What I really wanna know is, if this card is worth buying and is compatible with my computer (specs below), if it fits inside my computer case and if this is a great performance card/gaming card, and finally if the Radeon HD 6870 needs more power, like a new Power Supply, PSU etc.. (like 500 watts or 750 watts)
If this card isn't that good for my PC, I would be very thankful if you could recommend or have any knowledge in other high performance/gaming card, which you think fits this computer better. :)

System specs:

Intel Core i5 2400
Operating speed: 3.1 GHz (up to 3.4 GHz turbo)
Number of cores: 4

Amount: 8 GB RAM
Speed: PC3-10600 MB/sec
Type: DDR3-1333

2 TB

Power Supply
Internal 300W (100V-240V)
Form factor: Internal ATX
Total wattage: 300W
Nominal input voltage range:
100-127V/6A (50-60Hz)
200-240V/3A (50-60Hz)
Dimensions: 150mm x 140mm x 86mm (5.9 x 5.5 x 3.4 inches)
This power supply has an LED to indicate a possible failure condition when LED is off and power is connected

Computer Case:

Height: 36.8 cm (14.4 inches)
Width: 16.5 cm (6.4 inches)
Depth: 38.9 cm (15.3 inches)
Weight: 8 Kg (17.6 lbs) - without packaging

Bay size / Total Bays*:
13.33 cm (5.25 inch) ODD / 1*
8.89 cm (3.5 inch) HDD / 1*
*Bays may be occupied by existing hardware.
6 answers Last reply
More about upgrading graphics card advice greatly appreciated
  1. Power supply is a little weak, get a 400-500w one for more breathing room, other than that, ur fine.
  2. Thanks for the reply.
  3. yeah your power supply sucks, and we really cannot recommend anything without a budget.
  4. You'll need a new psu for a graphics card upgrade.

    If your case takes a standard ATX psu, you could go for something like this:

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026 $35 AR

    Then you'll be able to run just about any gpu you want.

    The only way to know if the card will fit, is look at the cards length under specifications and measure with a tape measure.
  5. Thought about getting the 7850? You will still need to upgrade your PSU.

    What games are you trying to play? What resolution? What graphics settings?

    Also what is your budget?
  6. Hey, I don't know what 7850 is, is it a better card?

    My budget is about 325 $

    and yeah, about the PSU, I was thinking of perhaps buying the ATX 450W 80+ Bronce, XFX (link here: http://www.newegg.com/Product/Product.aspx?Item=N82E16817207018

    Games that I play with pretty much low settings are PlanetSide 2 (it's not yet optimized as it is still in beta), Battlefield 3, GTA 4, Darksiders and Arma II to name a few.

    I can play at 1920x1080 resolution, but my current graphics card is not for gaming, I think its a multi media graphics card (it plays blue-ray)
    I'ts a Geforce GT 545 DDR3 3072 Mb dedicated.

    Hope this helped a little. :)
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