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regreting my Sapphire 7970 - Page 3

post #21 of 42
Quote:
Originally Posted by jomama22 View Post

You also only have 3gb of mem on the 7970. For three screens.....that is quite low. Thats why im waiting on either the 7970 flew with 6 gb or the 7990.

3gb is plenty for a 1080p 3 screen set up, with pretty acceptable FPS.
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post #22 of 42
Quote:
Originally Posted by jomama22 View Post

You also only have 3gb of mem on the 7970. For three screens.....that is quite low. Thats why im waiting on either the 7970 flew with 6 gb or the 7990.

confused.gif ONLY 3GB of VRAM? I thought 3GB/card was ridiculously good for a three monitor set-up, people have been running 3 monitor set-ups off 1.5GB. As a matter of fact, I'm pretty sure there were no real 3GB cards before the 7970...?
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post #23 of 42
The screen tearing is because of mixing DP and DVI on an Eyefinity group. The best image quality is connecting the monitors all to DP. We need a DP hub or DP daisy chaining (if your monitor supports DP passthrough).
Quote:
Originally Posted by jomama22 View Post

You also only have 3gb of mem on the 7970. For three screens.....that is quite low. Thats why im waiting on either the 7970 flew with 6 gb or the 7990.

3GB is the most there has ever been on a GPU. A dual GPU 7990 with 6GB is still only 3GB per GPU.
post #24 of 42
I get screen tearing with both my 4850s, tried them in several machines and on XP, Vista and 7 (so a whole host of different drivers). I reckon it's got something to do with the architecture of the GPUs more than anything else but I know bugger all. Also in dire need of an upgrade. tongue.gif
   
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post #25 of 42
Quote:
Originally Posted by b3machi7ke View Post

confused.gif ONLY 3GB of VRAM? I thought 3GB/card was ridiculously good for a three monitor set-up, people have been running 3 monitor set-ups off 1.5GB. As a matter of fact, I'm pretty sure there were no real 3GB cards before the 7970...?

580 or 590.
 
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post #26 of 42
OP is doing it wrong. tongue.gif
Quote:
Originally Posted by DWSR View Post

580 or 590.

590 isn't technically a 3gb addressing card, it's 3gb total but only 1.5gb is addressed per gpu.
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post #27 of 42
define "tearing"

I have kinda such an issue, and it is universal to 6xxx+ series cards in eyefinity. Any monitor that isn't set as "preferred" will show a scrolling tear line for some reason. To help mitigate this, i set the center one to preferred, so i cannot notice the tearing.
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post #28 of 42
Quote:
Originally Posted by jayman4911 View Post

I have had both Nvidia and ATI in the past about 50/50 ... but I always seem to have issues with the ATI cards more.

i would have to agree
     
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post #29 of 42
AMD cards are prone to micro-stutter dats for sure but 7970 is new so i think the screen tearing its normal...let the drivers mature
dont knw how many update waves AMD will need to fix these....
     
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post #30 of 42
Quote:
Originally Posted by DWSR View Post

580 or 590.

580 was only 1.5GB till they realized that it wasn't enough for some.. and yes alot of people forget you have to halve the graphics memory on crossfire/sli setups. (it's a shame really)
Quote:
Originally Posted by NKrader View Post

i would have to agree

Same, i haven't had many nVidia cards myself but i've had a few more problems with nVidia stuff, less with Ati/AMD

Although it's more driver related for Ati/AMD, and it's more hardware related for nVidia.
 
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