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post #31 of 52
i think if i were in ur place i would get a gtx 590 and sli down the road...
but make sure u get the 6gb vram edition gtx 590(i donno whether they exist but gtx 580 with 3gb vram does exist so let me search)......
4 gpu's r better than 3.....

EDIT: it seems theres currently no gtx 590 with 6gb vram...so now change of plans...u r better off with hd6990 as it has 4gb vram which will help with ur tri monitor insane resolution....
then add another hd6990 down the road...
with the hd6990 u will be losing 5-10% performance at most but the larger vram will allow u to use higher resolutions...

just for ur info(there r 3gb vram gtx 580's).....but i wont recommend taking 2 gtx 580's now and adding third after wards so better stick with hd 6990)....
Edited by ghost_z - 8/7/11 at 11:06am
post #32 of 52
Id go for the HD 6950 3way. if you do a bios flash on each of the 3 boards(reference preferable) and do a slight overclock of about 50mhz on the cores it would mean some serious fps.

Don't try to crossfire a HD6870 with a HD6990. The 6870 has a BARTS GPU and the 6990 has 2 Cayman GPU's. running the settup wouldn't be a problem but it would give some headache later on.
assasin
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CPUMotherboardGraphicsRAM
pentium E5400 @3.961GHz@1.41v GIGABYTE G31M Sapphire HD 6950 2gb Corsair 2x2gb @ 1008MHz 
Hard DriveOptical DriveOSMonitor
Seagate barracuda 500gb 7200rpm HP 24x deul layer DVD/RW Windows 7 ultimate 64bit OS 21.5" Samsung SyncMaster 
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assasin
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pentium E5400 @3.961GHz@1.41v GIGABYTE G31M Sapphire HD 6950 2gb Corsair 2x2gb @ 1008MHz 
Hard DriveOptical DriveOSMonitor
Seagate barracuda 500gb 7200rpm HP 24x deul layer DVD/RW Windows 7 ultimate 64bit OS 21.5" Samsung SyncMaster 
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500w Cooler Master silent pro Cooler Master Storm Sniper black edition 
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post #33 of 52
Thread Starter 
So the 590 doesn't have the support of 3 monitors like a 6990 would? An why wouldn't you still recommend the 580 SLI? Same reason as 590?
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My System
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Intel i7-2600k Asus P8Z68 V-Pro Radedon HD 6970 G.Skill 2x4gb Ripsaw 1600mhz 
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2 1TB Samsung F3 Spinpoint, OS 60 gb SSD Windows 7 Home Corsair Gold Edition 850w Custom Desk 
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post #34 of 52
gtx 590 does have 3 monitor support who said it does not...i just remembered that using 3 monitors will use up quite a bit of vram and u might become vram limited with gtx 590 hence i recommend hd6990 now as it has 4gb vram compared to 3gb on gtx 590...

and about gtx 580 sli...if u take it then u will only be able to do tri sli and 3 gtx 580's will use much more power compared to the performance deleiverd....
so using hd6990 makes sense in ur case...and then adding another down the road and have 4 gpu's and total 8gb vram to play with.....
post #35 of 52
Thread Starter 
Ya i understand. Thats what i meant. Wasn't saying it doesn't support. Just saying the 6990 support is better for it. Would the Dual 580's make up for the lack of VRam in one 590? or does it not work that way?
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My System
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CPUMotherboardGraphicsRAM
Intel i7-2600k Asus P8Z68 V-Pro Radedon HD 6970 G.Skill 2x4gb Ripsaw 1600mhz 
Hard DriveOSPowerCase
2 1TB Samsung F3 Spinpoint, OS 60 gb SSD Windows 7 Home Corsair Gold Edition 850w Custom Desk 
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post #36 of 52
if u really wanna go the gtx 580 way for 3 monitors then be sure to get the 3gb version and not 1.5gb version....but not all manufacturers produce 3gb gtx 580's so it might be hard to find....
ok herees what i got..

see
1)from palit
http://www.newegg.com/Product/Produc...82E16814261098

2) from evga
http://www.newegg.com/Product/Produc...82E16814130655

3) from zotac
http://www.newegg.com/Product/Produc...82E16814500199

but i suggest u take hd 6990....i think u r worried about amd drivers....trust me most of the times its user error...although on a few occasions its actually the drivers which r late...
post #37 of 52
Thread Starter 
I guess my question was if you use 2 580's with 3gb does that mean it goes to 6gb. which would be better than 6990's 4gb?
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My System
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Intel i7-2600k Asus P8Z68 V-Pro Radedon HD 6970 G.Skill 2x4gb Ripsaw 1600mhz 
Hard DriveOSPowerCase
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post #38 of 52
yup u r correct....
but factoring in the performance, cost the hd 6990 seems to be better...
now lets say u r thinking that now ur gonna have 6gb vram and in future u add anoth 3gb gtx 580 then u have 9 gb vram....but it wont beutilized..even for tri screen setup 9 gb is really huge...and those will be 3 gpu's compared to 2 hd6990 with 8gb vram and 4gpu's...

so thats what i meant to say...in the long run the hd6990 is better.....
and if u r really bent on taking nvidia then no probs u can take 2 gtx 580 3gb versions...
Edited by ghost_z - 8/7/11 at 12:01pm
post #39 of 52
Thread Starter 
But you would recommend the 6990 because its not far behind by itself but if you got a 2nd down the road it would blow the 580's out of the water?
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My System
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CPUMotherboardGraphicsRAM
Intel i7-2600k Asus P8Z68 V-Pro Radedon HD 6970 G.Skill 2x4gb Ripsaw 1600mhz 
Hard DriveOSPowerCase
2 1TB Samsung F3 Spinpoint, OS 60 gb SSD Windows 7 Home Corsair Gold Edition 850w Custom Desk 
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post #40 of 52
Quote:
Originally Posted by kswindell View Post
But you would recommend the 6990 because its not far behind by itself but if you got a 2nd down the road it would blow the 580's out of the water?
yup absolutely correct...u got my point....
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