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4870 vs 5770 vs 5830 vs 5850

Last response: in Graphics & Displays
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August 19, 2010 3:09:45 PM

Hello,
basically, i have 300 dollars to spend. i cant figure out what i should get.

i have OCZ steathXstream 500W with 36A on 2 +12V rails.

cant figure out if i should get better card now, or lower card with psu now, and crossfire later.

current card is nvidia 9500 gt 1GB which has served me well, but with purchase of AMD system, shown lots of instability.

i dont plan on going past 1650 x 1080 any time soon.

More about : 4870 5770 5830 5850

August 19, 2010 3:23:05 PM

oh also here is rest of comp

mobo: MSI 870A G54
cpu: AMD Phenom II X4 945 3.0GHz
RAM: OCZ 4GHz Black Edition DDR3 12800
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August 19, 2010 3:31:59 PM

You cant properly Crossfire on your Mobo, so if you have the money a HD5850.
However, unless yo plan to max out every game, a HD5770 should be able to play most games on high settings.
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August 19, 2010 4:03:52 PM

Get a 5850 or save some cash and get a 460, this way you will be covered when it comes to the GPU. The 5770 is on the weaker side, I used to have a GTX 260 which is comparable to the 5770 and was not satisfied at all unless I lowered the visuals @ 1680x 1050 in most games.
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August 19, 2010 10:53:09 PM

as for what im playing, currently borderlands, prototype, dragon age origins, black and white 2, and fallout 3. i would like to be able to run all five at absolute max at 1680x1050.

im curious as to why i cant crossfire properly, and since i cant would it be advisable to keep my 9500GT for PhysX?
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August 19, 2010 10:59:23 PM

grimarchangel said:
as for what im playing, currently borderlands, prototype, dragon age origins, black and white 2, and fallout 3. i would like to be able to run all five at absolute max at 1680x1050.

im curious as to why i cant crossfire properly, and since i cant would it be advisable to keep my 9500GT for PhysX?

Your Mobo can only scale X16/X4, and since crossfire scales by the slowest card, you essentially get X4/X4.

PCIe X4 reduces performance by ~20% for a HD5770 IIRC, so say you get a 80% jump from adding a second card, with X4 you only get 44%.
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August 19, 2010 11:02:31 PM

grimarchangel said:
as for what im playing, currently borderlands, prototype, dragon age origins, black and white 2, and fallout 3. i would like to be able to run all five at absolute max at 1680x1050.

im curious as to why i cant crossfire properly, and since i cant would it be advisable to keep my 9500GT for PhysX?



you cannot CF because your board has only 2 slots, one at x16 and one at x4. This means that you are limited to one primary GPU @ x16 and an optional physX card @ x4.

As far as using the 9500GT for physX, yes you can ;) 

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August 19, 2010 11:02:43 PM

For your resolution I would probably go with a GTX 460. The HD5770 would be very good as well but the 460 would be great
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August 19, 2010 11:04:41 PM

Timop said:
Your Mobo can only scale X16/X4, and since crossfire scales by the slowest card, you essentially get X4/X4.

PCIe X4 reduces performance by ~20% for a HD5770 IIRC, so say you get a 80% jump from adding a second card, with X4 you only get 44%.


i kinda had a feeling that you were going to beat me to it :D 
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August 20, 2010 9:18:34 AM

thank you for the help everyone, ended up buying XFX 5850 1gb. couldnt argue with double lifetime warranty.
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August 24, 2010 11:51:14 PM

grimarchangel said:
thank you for the help everyone, ended up buying XFX 5850 1gb. couldnt argue with double lifetime warranty.


What's a double lifetime warranty? Does that mean it's covered when you die or when XFX dies?
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August 25, 2010 12:32:20 AM

It means you can sell or give away the card and that person then has a lifetime warranty as well.
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