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HD 6990 crossfirex or gtx 690

Last response: in Graphics & Displays
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October 8, 2012 5:27:01 PM

Hi everone.
I currently have a hd 6990 and can get another for £300...is it worth crossfiring these or should i sell my card (£300 ish) and put the rest of the money on a gtx 690.
Would there be much difference in performance using 3 screens.
Cheers
Daz.
a b U Graphics card
October 8, 2012 5:54:10 PM

whats ur specs
October 8, 2012 6:16:46 PM

i would not get another 6990.
imagine the micro-stuttering lol.
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October 8, 2012 6:36:00 PM

skitz9417 said:
whats ur specs

Hi..
i7 overclocked to 4.5
rampage IV gene
16 gig ram
corsair water cooled
850 watt psu...i presume i would have to change this?
cheers
daz.
a b U Graphics card
October 8, 2012 6:42:57 PM

The HD 6990 is a beast!Why would you even consider buying a second one?
To be honest i cant imagine why you'd need more power than a HD 6990 would provide so there is absolutely no need for another one.And even if you could get another one, the performance bump woudn't be more than 50%.
October 8, 2012 6:54:53 PM

Kamen_BG said:
The HD 6990 is a beast!Why would you even consider buying a second one?
To be honest i cant imagine why you'd need more power than a HD 6990 would provide so there is absolutely no need for another one.And even if you could get another one, the performance bump woudn't be more than 50%.

Indeed the card is good but using 3 screens and maxing everything out on certain games the fps drops to around 35 and on certain games it drops to around 45 fps on one screen.
These fps are still very playable but theres nothing like playing at over 70 fps which is why im asking would hd 6990 crossfire x accomplish this,,,,or would a gtx 690 do it.
Cheers
Daz.
October 8, 2012 6:58:47 PM

daz188 said:
Indeed the card is good but using 3 screens and maxing everything out on certain games the fps drops to around 35 and on certain games it drops to around 45 fps on one screen.
These fps are still very playable but theres nothing like playing at over 70 fps which is why im asking would hd 6990 crossfire x accomplish this,,,,or would a gtx 690 do it.
Cheers
Daz.

Theoretically speaking, the Geforce GTX 690 should be 20% faster than the Radeon HD 6990 overall, because of its higher data rate.

Source : http://www.hwcompare.com/12678/geforce-gtx-690-vs-radeo...
October 8, 2012 7:05:55 PM

daz188 said:
hi..
Would it be 20% faster than a hd6990 crossfired
cheers

no.
But it beats it when both crossfiredx

cheers.
October 8, 2012 7:17:20 PM

690 for sure , crossfireing 6990s would give you alot of problems , yea great benchmarks but not so great irl performance
October 8, 2012 8:03:13 PM

robthatguyx said:
690 for sure , crossfireing 6990s would give you alot of problems , yea great benchmarks but not so great irl performance

How many screens does a 690 support
October 8, 2012 8:19:49 PM

daz188 said:
How many screens does a 690 support

Display Support:
4 displays
a b U Graphics card
October 8, 2012 9:26:15 PM

For three screens I would consider two 7970.

Cheaper ans more memory.
October 8, 2012 10:52:00 PM

im with embra while a 690 would be a better choice as of what you asked a 7970 crossfire would be better for the multiple screens
a c 144 U Graphics card
October 9, 2012 2:16:36 AM

adding another 6990 will not much advantage performance wise given how well nowadays gpu scaling when 4 gpu are linked together in crossfire/sli setup. most likely it will only add more heat and noise in your system. so i advice you to keep it as it is or go for 690 or 7970 in 2-way CFX. if you want cheaper route with nvidia side try looking for 670 in SLI.
!