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GTX 1080 ..... is SLI useless at 1080p?

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  3. GTX 1080 ..... is SLI useless at 1080p?

User Info: Cyber Akuma Zero

Cyber Akuma Zero
2 years ago#1
Normally, when building or upgrading a gaming rig, I try to get the best single card I can afford, than about a year or so later buy a second one used cheap to SLI/Crossfire it so I can keep the system going for a few years more until the next single card can outperform that SLI setup.

Currently I have two GTX 670s in SLI, and am looking to upgrade. The 900 series cards were close, but barely beat out my SLI setup, unless you were looking at TITAN cards or (at the time) $800 Ti versions.

Needless to say, the 1080 obliterates it, and I am considering an upgrade.

Thing is, my monitor is 1080p, and I am not really interested in upgrading to 4k, namely because it is a 144hz monitor that supports Nvidia 3D Vision (Yes, I actually use the 3D feature), and pushing 4k at 120FPS would be a challenge even for two 1080 cards..... not to mention I don't think any monitors even supports 120+hz and 3d Vision at 4k... and if they do they would cost a fortune right now.

However..... I looked at benchmarks of GTS 1080 cards in SLI and the results were..... disheartening.

www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_SLI/

They performed well for 4K, practically all the games they tested saw a clear FPS in SLI at 4K.... but it's the 1080p results that worry me. The majority of the games saw practically no boost at all, or worse, a few of them actually ran SLOWER than a single card would!

Granted, this benchmark was made a while ago, so that's why I am asking here. Has this situation improved at all? Was it some driver or lack of support issue? Or do two GTX1080s still barely bring any performance increase at 1080p?

Admittedly, I didn't realize games needed to have an SLI profile otherwise they would run on a single card. This wasn't really an issue back when the 670 were new as SLI profiles were being updated for pretty much all major games all the time in Nvidia's drivers, but lately they seem to be putting far far less efforts into the whole SLI thing and support. (Strange, you would think Nvidia would WANT people to buy more of their hardware).

As I said though, I am not going to just buy two 1080s right off the bat, I am going to replace my dual670s with a single 1080, and if it's not a pointless waste to get a second 1080, add one in later, and stick with that setup for a few years instead of upgrading to the 1180 when it comes out. I don't upgrade my cards every time a new one is out.
"A train station is where a train stops. A bus station is where a bus stops. On my desk I have a workstation." - William Faulkner
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User Info: Garage_Man

Garage_Man
2 years ago#2
.....I dont get it? Are you asking us to find a reason to justify you wasting your money? You need to do that yourself.

Why on earth wouldn't you get a 1080 now and then sell it when the 1080ti comes and just keep current on the high end. It's CHEAPER. SLI and the such shouldn't be a huge thing anymore....even @4k you are just introducing frametime issues. It's not worth the FPS if your frametimes are even kinda worse.

User Info: Cyber Akuma Zero

Cyber Akuma Zero
2 years ago#3
Garage_Man posted...
Why on earth wouldn't you get a 1080 now and then sell it when the 1080ti comes and just keep current on the high end.


Because I flat-out stated I don't just keep instantly upgrading to the latest card as soon as they come out and have no intention of getting a 1080Ti?
"A train station is where a train stops. A bus station is where a bus stops. On my desk I have a workstation." - William Faulkner
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User Info: Garage_Man

Garage_Man
2 years ago#4
Then waste your money and get SLI for no reason to get a worse overall experience. Have fun with that.

User Info: Cyber Akuma Zero

Cyber Akuma Zero
2 years ago#5
That completely doesn't answer the question I asked in any way.
"A train station is where a train stops. A bus station is where a bus stops. On my desk I have a workstation." - William Faulkner
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User Info: Blarghinston

Blarghinston
2 years ago#6
SLI in general nowadays is useless IMO especially as cards are just about at the 4K 60FPS mark
GTX 1080 FE | 5820K 4.6ghz | 64GB DDR4 | 950 Pro 512GB | Samsung 4K

User Info: josh_b

josh_b
2 years ago#7
I went from two GTX 670's to two GTX 970's and was disappointed in both setups. No i have a single card and even with the two 970's out performing by a few frames my games instantly felt better and no longer having to deal with the issues that SLI brings.

Just Get a 1080 and wait till something better comes along. it's not that big a hassle to upgrade when you feel it's needed. Like the other guy said. Get a 1080 today and a 1080Ti later if and when they are introduced. Regardless a single 1080 is overkill for 99% of games at 1080p
i7 5820k,Asus x99-Deluxe Mobo, Noctua D15 Cooler, Corsair Dominator Platinum 16GB DDR4, Samsung 840 Evo 1TB SSD, Samsung 2TB HDD, Zotac GTX 1070 Amp Extreme

User Info: Cyber Akuma Zero

Cyber Akuma Zero
2 years ago#8
josh_b posted...
Just Get a 1080 and wait till something better comes along.


That's a lot more money in the long run though.

By the time a single GTX1080 is starting to not max out games anymore, the next cards would likely already be out and getting a second used gtx1080 would be cheap. But it would be worthless if it would provide no benefit at 1080p.

Again, I am still on GTX 670s, I don't upgrade every year.
"A train station is where a train stops. A bus station is where a bus stops. On my desk I have a workstation." - William Faulkner
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User Info: Blarghinston

Blarghinston
2 years ago#9
Cyber Akuma Zero posted...
josh_b posted...
Just Get a 1080 and wait till something better comes along.


That's a lot more money in the long run though.

By the time a single GTX1080 is starting to not max out games anymore, the next cards would likely already be out and getting a second used gtx1080 would be cheap. But it would be worthless if it would provide no benefit at 1080p.

Again, I am still on GTX 670s, I don't upgrade every year.


clearly none of our answers validate what you want to do, so stop posting and do what you want lol
GTX 1080 FE | 5820K 4.6ghz | 64GB DDR4 | 950 Pro 512GB | Samsung 4K

User Info: Silvererazor

Silvererazor
2 years ago#10
Possible solution:
Buy a EVGA 1080 now and use he stepupprogram when the 1080ti is released. Further down the road buy a second 1080 ti.

Aside from the sli-optimization, if there are improvements @4k in terms of fps, but not @1080p (compared to single GPU), then its a obvious case of a CPU-bottleneck (in most cases).
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