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Decisions, Decisions, 6870x2 vs 580

post #1 of 16
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Hello Everyone

Im looking at upgrading my gpu from my aging 5850 to either the 6870x2 or 580 and need some opinions and input if possible?

It will be going with my sig rig and the Samsung T27A950 27in 120Hz 3D monitor I'm planning on buying. Currently running a 3 1/2 year old ASUS 1680x1050 so an upgrade is sorely needed.

I play mostly FPS games (you name it I probably play it) with some simulations (like the anno series) and driving games occasionally.

Also I prefer to play on the highest possible settings the card I have will allow, so plently of AA & AF and the 5850 just isn't cutting the mustard anymore.

Now, i've heard about micro stuttering with the 6870x2 so I was wondering if that would be a problem with a 120hz monitor and if so would I be better off grabbing a GTX 580?

I've seen that they 6870x2 is slightly faster, but would that extra speed be cancelled out by noticeable (or annoying) microstutter?

A friend has a 5970 and I've seen microstuttering and found it very annoying, so I want to avoid it if possible.

Any input/suggestions would be greatly appreciated.

Cheers
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post #2 of 16
6870x2 is faster and has more VRAM.
I don't think micro-stutter will be a problem, That has been improved with the 6xxx series so you will see much much less then your friend with his 5970.

But if you are still worried, By all means go for the GTX580
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post #3 of 16
hey you can also crossfire 2 hd 6870 instead of going for dual gpu hd 6870x2.
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post #4 of 16
I would opt for another HD5850 and go the route of crossfiring. Personally I do not like wasting a good card like HD5850 without fully utilizing its full potential. Getting another HD5850 should be relatively cheap too.

Here is a thread of similar discussion. Various opinions are raised:-
http://www.overclock.net/amd-ati/759...ne-gtx480.html

Here shows what jump in framerate you would expect going from single HD5850 to dual HD5850s (at 1680x1050 and 1920x1200). This was more than a year ago and so recent mature drivers should yield even better result:-
http://www.techpowerup.com/forums/sh...d.php?t=123055

Other considerations:-
1) Your motherboard Z68 Extreme4 Gen3 can handle CF and an empty slot is there between the 2 cards. Good and ready-to-go.
2) Your PSU Antec CP-850 has two (6+2) pin and two 6 pin PCIE power connectors and this is also ready.
post #5 of 16
Quote:
Originally Posted by AMDrocks View Post
6870x2 is faster and has more VRAM.
I don't think micro-stutter will be a problem, That has been improved with the 6xxx series so you will see much much less then your friend with his 5970.

But if you are still worried, By all means go for the GTX580
Omg your whole post is wrong, the gtx 580 has 1.5 gb ov vram and the 6870x2 only has 1gb. And read the review at tom's the microsuttering depends on the game and fps, it is only really noticeable under 30fps. I think it. Is a great card with the option to go tri fire, trifire would be great on your 120hz monitor.

Edit: just the second half of you list is wrong: the 6870x2 is faster you are right.
post #6 of 16
Quote:
Originally Posted by hammertime850 View Post
Omg your whole post is wrong, the gtx 580 has 1.5 gb ov vram and the 6870x2 only has 1gb. And read the review at tom's the microsuttering depends on the game and fps, it is only really noticeable under 30fps. I think it. Is a great card with the option to go tri fire, trifire would be great on your 120hz monitor.

Edit: just the second half of you list is wrong: the 6870x2 is faster you are right.
http://www.techbuy.com.au/p/174093/V...505-028644.asp
http://www.tweaktown.com/reviews/421...iew/index.html
It is a 2gb card mate.
And i am pretty sure micro stutter improves going from 5xxx series to 6xxx series.

EDIT:
Do you mean this from toms??
Quote:
In a nutshell, all of the time. The lower the average frame rate, the more the frame rate is perceived as being lower than the actual average frame rate. Thus, as bad luck would have it, a frame rate of 30 FPS may be perceived as merely 20 to 25 FPS. The human eye does, however, still notice differences in when frames show up on-screen beyond 60 FPS.


This is one of the reasons why we prefer testing with higher frame rates in the GPU scaling tests on the following pages. It continues to amaze us how, even beyond the generally-accepted target of 40 FPS, you can still see the impact of micro-stuttering once rendering becomes imbalanced.

Edited by AMDrocks - 10/15/11 at 12:39am
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post #7 of 16
The 6XXX Series has improved upon the 5XXX Series quite a bit.

But...

I'm voting for another 5850 as well, they can be bought used for relatively cheap (Here's a Sapphire 5850 for sale here on OCN, going for $150 shipped). AMD/ATI driver problems are grossly exaggerated, set up correctly, you should see no problem.
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post #8 of 16
Quote:
Originally Posted by AMDrocks View Post
http://www.techbuy.com.au/p/174093/V...505-028644.asp
http://www.tweaktown.com/reviews/421...iew/index.html
It is a 2gb card mate.
And i am pretty sure micro stutter improves going from 5xxx series to 6xxx series.
Well, sort of. It has 1 GB per GPU, which is technically 2 GB. But that RAM is mirrored, so the frame buffer is really more like just 1 GB.
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post #9 of 16
Quote:
Originally Posted by aurance View Post
Well, sort of. It has 1 GB per GPU, which is technically 2 GB. But that RAM is mirrored, so the frame buffer is really more like just 1 GB.
Well, Yeah true
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post #10 of 16
http://www.guru3d.com/article/club3d...0-x2-review/20

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