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Help, Nvida or ATI, 2 or 1?

post #1 of 21
Thread Starter 
Hi guys, Ordering the graphics card(s) for my i7 build on saturday!

but... after being settled on 2 ATI HD 5770's I was then advised to get just 1 HD 6950 untill I could afford a second, I had never given Nvida a thought, untill now...

I have had a quick look and have found that the GTS 450 has a faster core clock than the ATI 6950, and is half the price, so I could get 2, which would bump me up to 2gb graphics

I Don't want to spend more than £250 (Including postage) on a graphics card, the newer Nvida stuff is out of the question for me

so the question is, 2 older 1gb graphics cards or 1 newer 2gb graphics card?

either way I will be upgrading to a second/third card in the future

also a question about SLI/Crossfire, can you mix and match cards? (not nvida and ati obviously) I mean could i have say 2x 5770's and a 6950?
or 2 gts 450's and a 570?

sorry for the newbie questions but I don't want to buy something then be disapointed, as said before my budget is £250 for 1/2 graphics cards

the (asus) 6950 I was going to get is £235 including postage

Thanks in advance for any help
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post #2 of 21
Quote:
Originally Posted by Danny1107 View Post
I have had a quick look and have found that the GTS 450 has a faster core clock than the ATI 6950, and is half the price, so I could get 2, which would bump me up to 2gb graphics

I Don't want to spend more than £250 (Including postage) on a graphics card, the newer Nvida stuff is out of the question for me

so the question is, 2 older 1gb graphics cards or 1 newer 2gb graphics card?
Two "1gb" 450's do not equate to a "2gb" card setup. They will also not be as powerful as the 6950, and neither will the 5770's. They would be "roughly" as good as top end of last generations cards (480 and 5870). I would suggest, if it's in your price range to pickup a 6950 or gtx 570 and sli/xFire down the road. You also have to know which setup your motherboard/psu will handle.

Quote:
also a question about SLI/Crossfire, can you mix and match cards? (not nvida and ati obviously) I mean could i have say 2x 5770's and a 6950?
or 2 gts 450's and a 570?
Doesn't work that way and shouldn't be done that way regardless.

Quote:
the (asus) 6950 I was going to get is £235 including postage
If you were picking up a 6950, Asus isn't a bad choice.

Gluck with your purchasing.
post #3 of 21
Post above me said everything perfectly.
     
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post #4 of 21
As the poster above me stated, you don't add the Vram of each card. two 1GB GTS 450s only use one GPU's Vram. The second card just adds to helping increase the fillrates of the first card.
     
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post #5 of 21
Get a 6950 or a GTX 560 and upgrade to 2 later on.

Also Crossfire/SLI does not double the available VRAM, since both cards would copy each other when running, so they would both do the same thing.
    
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post #6 of 21
Thread Starter 
ok thanks for the advice 6950 it is, and the motherboard I'm getting supports both crossfire and sli
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post #7 of 21
Quote:
Originally Posted by xsf View Post
Two "1gb" 450's do not equate to a "2gb" card setup. They will also not be as powerful as the 6950, and neither will the 5770's. They would be "roughly" as good as top end of last generations cards (480 and 5870). I would suggest, if it's in your price range to pickup a 6950 or gtx 570 and sli/xFire down the road. You also have to know which setup your motherboard/psu will handle.


Doesn't work that way and shouldn't be done that way regardless.


If you were picking up a 6950, Asus isn't a bad choice.

Gluck with your purchasing.
This. Two cheaper cards will generally be roughly equivilant to a higher end single card. Two 5770's are about on par with a single 6870 / 5870. Two GTS 450's are about on par with a GTX 470 / GTX 570.

Problem being, you're limiting yourself completely to those setups, with no option for expanding in the future.

Grab the stronger single card (in this case the Asus 6950). It won't disappoint you . And you'll have the option to add another one later on for more power.
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post #8 of 21
Quote:
Originally Posted by pioneerisloud View Post
This. Two cheaper cards will generally be roughly equivilant to a higher end single card. Two 5770's are about on par with a single 6870 / 5870. Two GTS 450's are about on par with a GTX 470 / GTX 570.

Problem being, you're limiting yourself completely to those setups, with no option for expanding in the future.

Grab the stronger single card (in this case the Asus 6950). It won't disappoint you . And you'll have the option to add another one later on for more power.
And of course make sure to unlock that 6950, for even more performance!
    
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post #9 of 21
Thread Starter 
Quote:
Originally Posted by Senator View Post
And of course make sure to unlock that 6950, for even more performance!
what do you mean by unlock it? probably a newbie question

if you mean overclock, it will be getting overclocked
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post #10 of 21
Not overclocking. Though you will be doing that too lol. The reference version of the 6950's have additional shaders on them and those shaders can be unlocked for a free performance boost. You can additionally flash the 6950's BIOS to a 6970 BIOS and with proper tweaking your 6950 is now for all intensive purposes, a 6970.

Check the Guide link in my signature.
    
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