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9800GTX's SLi vs HD 6870 worth it? - Page 2

post #11 of 16
Thread Starter 
Quote:
Originally Posted by pursuinginsanity View Post
Jake, if you're really serious about eyefinity, you might want to step up to a 6950 just for the 2GB frame buffer.

Video RAM becomes very important at these mega resolutions. 1GB just isn't enough for 3 1080p monitors, or even 3 1680 x 1050s.
I did see the 2gb 6950's they look awsome. However my monitors are only 1680x1050 so idk if it would be worth my extra $$$
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post #12 of 16
It would definitely be worth it if you want to turn on all the eye-candy.
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post #13 of 16
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Quote:
Originally Posted by Neitzluber View Post
Really, that cheap? That's insane. HD4550 is $50 but it's 5 times slower. Makes no sense.
Yeah i know, Id take the first $100 for both someone offered me even though i payed over $220 each for them new. The only depressing part about building rigs
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post #14 of 16
Thread Starter 
yes but at 1680x1050 would i be able to play games pretty well with the eye candy with the 6870
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post #15 of 16
Quote:
Originally Posted by Jakester136 View Post
I did see the 2gb 6950's they look awsome. However my monitors are only 1680x1050 so idk if it would be worth my extra $$$
Well, here's the thing. One 1680 display is ~1.7 million pixels. 3 is ~5.3 million. One of these will use ~550-750mb of video RAM. You can figure 3 will, of course, use at least double that (if not triple.) 1GB just isn't enough.

If you want high textures with 3 displays, you need 1.5-2GB of video RAM. It will definitely be worth the extra cash. If you want Anti Aliasing, that video ram usage shoots through the roof. I can use my whole 1GB at 1080p.

EDIT: Whoops, my original comparison was to show that a 1080p display is roughly 2 million pixels. Compare this to 5.3million.

Basically, you can make up extra pixel pushing power by going crossfire later on. But you can never make up for the deficiency in v-ram. You'd be forced to buy a new card all over again.

EDIT2: Check out this thread, Jake. http://www.overclock.net/nvidia/8016...ream-card.html

Paradigm compares the 2GB 460s to the 1GB 460s. I understand it's a slightly different scenario than with the AMD cards, but you can see the importance of large amounts of V-RAM at triple-display resolutions.
Edited by pursuinginsanity - 1/1/11 at 12:37pm
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post #16 of 16
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what about if was running just my single 1680x1050 display would i notice gains over my 9800gtx's ? I havent quite decided if i want to dish out more cash on displays when i dont have the cash to spend on the 2gb cards
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