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Old September 18, 2013, 11:42 PM
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Default Surround vs Eyefinity

I'm in the city and dropped into the Memory Express to pick up my red LED 140 fans I'd bought for pick up. Sadly they had brought in blue ones and were all out of stock on red ones - oh well. But while there engaged the saleman in questions about upgrading my video card. He suggested I really should look at nVidia and the surround system.

Now one of my games X-plane 10 has known issues with the HD 7900 series (may or may not be fixed - last complaints were in the spring). But X-Plane Pilots seem to prefer nVidia saying they do Open GL better. So I thought I'd look into it.

I settled on the new GXT 760 card, it seemed to fall between the 7870 and 7950 in performance, even though the 7950 has 3 gb vram and the 760 only two. Cost was $260ish, compared to $250 for a 7950 so very close.

BUT I did discover in my research that nVidia Surround wants all three monitors to be the same resolution (and size). I have two 20's on either side of a 24". Eyefinity manages that well. Maybe not so much with Surround??

I also really like hydravision to limit the display to just one screen easily (right clicking on the top bar and "attach to grid" - works in 90% of programs). I found a few software add ons you can buy that do this for Surround but from what I could find nVidia does not offer a similar utility built into their system.

So I'm back to AMD (7870 and save a few dollars and potential grief with Xplane or go for the 7950 and hope that issues been resolved).

Or am I wrong about nVidia on these points?
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Last edited by fortkentdad; September 18, 2013 at 11:50 PM. Reason: wasn't done yet
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Old September 19, 2013, 04:05 AM
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NVIDIA requires similar monitors.

A 7870, and 7950 are far too weak to run any type of Eyefinity, 7870 CF is probably the minimum. I tried surround with 560Ti SLi surround, and it worked for some games, but was not optimal.
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Old September 19, 2013, 04:56 AM
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Also be aware of the problem of dropped frames of Crossfire in multi-GPU setups, which SLI doesn't appear to suffer.

Frame Rating: Eyefinity vs Surround in Single and Multi-GPU Configurations | PC Perspective
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Old September 19, 2013, 09:23 AM
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Quote:
Originally Posted by The RealRollo View Post
NVIDIA requires similar monitors.

A 7870, and 7950 are far too weak to run any type of Eyefinity, 7870 CF is probably the minimum. I tried surround with 560Ti SLi surround, and it worked for some games, but was not optimal.
I'm running Eyefinity with a 1 gb HD 6670 and get fps of 15-45 depending on the game. Res
olution is 4800 x 900. In some games I set a lower resolution but still 3 screens.

And isn't the 7950 more powerful than the 7870?
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Old September 19, 2013, 01:59 PM
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Did a little pixel math. Most Eyefinity benchmarks use 5760x1080 = 6220800. I'm running 2x20" + 1x24" 4800x900 = 4320000. That's a difference of 1900800 or a 44% increase.

Reviews of the ASUS 7870 show it can perform close to a 7950 in some games. The 7870 is not know to have open GL issues with X-Plane. It is $220 vs $320. (although I can order a 7950 gigabyte for $250 +10 s/h + mini-dp adapter). I could look at xfire later (if card continues to be available). It also does not push my PSU (620w).
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Old September 19, 2013, 03:49 PM
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Default Fit onto my motherboard

Oh - another consideration. The ASUS 7950/70 is a three slot card and I'm worried it won't fit onto my board. Does the video card have to be installed in a particular slot? I know for the my current two card system I found out I much put the primary card into the top slot (nearest CPU) - does this apply to using a single GPU?
From this image from the asus site I doubt a fat 3 slot card could be put into the top slot?



Hmm - checked the manual and it does recommend the first slot "for better performance".

I think I'd have to do some measuring.

Anyone have a three slot asus card on this type of motherboard? (even two slot??)
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Last edited by fortkentdad; September 19, 2013 at 03:56 PM.
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Old September 19, 2013, 04:10 PM
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I have found posts on forums where people have a two slot HD 7870 on this board - still looking to see if anyone put a 7950 onto this board. I did find one questioning the wisdom of doing so and being told it would 'bottleneck'.
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Old September 19, 2013, 06:39 PM
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Quote:
Originally Posted by fortkentdad View Post
I'm running Eyefinity with a 1 gb HD 6670 and get fps of 15-45 depending on the game. Res
olution is 4800 x 900. In some games I set a lower resolution but still 3 screens.

And isn't the 7950 more powerful than the 7870?
Some of us want minimum fps at 30 and above.
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Old September 19, 2013, 08:02 PM
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Ypu will be able to fit a three slot card on that board as long as you don't put anything in the two x1 slots below it
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Old September 19, 2013, 08:13 PM
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For once I agree with the Rollo fully, 30 fps is a total min but you are using low rez screens. Dont waste money if your doing triple screens though I use a 770 2GB day to day and it powers through 3 1080p screens but I did get a great experience with my 6970CUII for triple screen gaming.

I say 7950 Ghz min but a nice 760 770 would be a awesome point to be at.

Or just wait a few weeks see if AMD brings something nice to the table right now I cant recommend a 7XXX series as they have been around forever but a nice 7XX gives you great performance per dollar.

though with your resolution so low maybe be a little shady hit up memxpress get a 7870 V2 if it doesnt work return it and upgrade till you hit a comfort spot. but a 7870 is a huge jump from your 6670 so it should clean things up extremely well
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