Sign in with
Sign up | Sign in
Your question
Solved

Asus Mars Dual 760 + GTX 760 FTW

Tags:
  • PCIe2.0
  • Gtx
  • 16x
  • SLI
  • Dual
  • Graphics
  • Asus
  • GPUs
Last response: in Graphics & Displays
Share
April 27, 2014 7:51:23 AM

Does anyone think that getting a Asus Mars Dual 760 and a GTX 760 FTW in sli on an Asus Crosshair V Formula Z PCIe2.0 both 16x slots is a good idea because I was planning on triple GPU set up but there were issues so I saw this and it seems like a really good idea it's like a Titan and another 760 so will it work?

More about : asus mars dual 760 gtx 760 ftw

April 27, 2014 7:58:57 AM

why do you need a triple card configuration? the mars dual 760 is more than enough for most games unless you play beyond 1080p res. besides that cfx or sli IMO doesnt prove to be efficient with more than two card(three or four in sli or cfx).
m
0
l
a b Ĉ ASUS
April 27, 2014 8:01:37 AM

it will work... just know x3 and x4 xfire and sli setups don't really work most of the time. What you're talking about is basically a x3 sli setup... as that mars gpu is a sli'ed 760 already. So don't expect an amazing boost in performance over the single 760 mars setup.

Don't worry about pci-e 2.0 x16... the titan doesn't even take a significant performance hit with pci-e 2.0 x8 (like 5%), there isn't a single gpu in existence that actually comes close to fully saturating a pci-e 2.0 x16 setup... pci-e 3.0 is still years away from being necessary.

That said your motherboard tells me you're on an FX/AMD cpu. Know that there is a pretty heavy performance hit with AMD cpus and x3 or x4 xfire/sli setups. This is mostly due to the memory controller or pci pathways or something, i think its a mix of issues... But the net result is you'll see a very heavy reduction in performance of that x3 sli setup...

I think you're probably best just going with a single 780 or r9-290... both of those are within 5% of a titan's performance; and they're a single gpu. when in doubt always go with a single gpu over a xfire/sli setup.
m
0
l
Related resources
April 27, 2014 8:18:10 AM

ingtar33 said:
it will work... just know x3 and x4 xfire and sli setups don't really work most of the time. What you're talking about is basically a x3 sli setup... as that mars gpu is a sli'ed 760 already. So don't expect an amazing boost in performance over the single 760 mars setup.

Don't worry about pci-e 2.0 x16... the titan doesn't even take a significant performance hit with pci-e 2.0 x8 (like 5%), there isn't a single gpu in existence that actually comes close to fully saturating a pci-e 2.0 x16 setup... pci-e 3.0 is still years away from being necessary.

That said your motherboard tells me you're on an FX/AMD cpu. Know that there is a pretty heavy performance hit with AMD cpus and x3 or x4 xfire/sli setups. This is mostly due to the memory controller or pci pathways or something, i think its a mix of issues... But the net result is you'll see a very heavy reduction in performance of that x3 sli setup...

I think you're probably best just going with a single 780 or r9-290... both of those are within 5% of a titan's performance; and they're a single gpu. when in doubt always go with a single gpu over a xfire/sli setup.


I do use AMD I would use intel if I could afford it I'm going to be using an AMD FX 9370 and overclock as much as it's stable with liquid cooling, also I was going to buy a 780Ti this year and get another next year but I saw the mars getting much similar performance as the 780 Ti and beating the stock ones and I thought basically a 780 Ti plus a 760 would be great I would've average like 150 frames and it would be about $980 AUD

m
0
l
a b Ĉ ASUS
April 27, 2014 8:24:58 AM

depends on your monitor more then anything else. if you're looking at a 1080p/1440p monitor i would rather go with a 780 anyway.
m
0
l
April 27, 2014 9:03:35 AM

I'm looking to save money and this looked like a good way, people said using 3 GTX 760's on PCIe2.0 would have a big bottleneck on 8x well 2 760's on 16x and another single GTX 760 on 16x the question is will it work? My rig is based around BF4 and BF4 supports multi sli solutions so yeah will it work or not? Will there be a big bottleneck? Or will it be the same same reduction as have 2 760's?
m
0
l
a b Ĉ ASUS
April 29, 2014 1:03:13 PM

no.. there is no bottleneck on pci-e 2.0 x8...

not for a 760 anyway... there would be a small one for a titan/780/780ti/r9-290/r9-290x... and when i say small i'm talking like 5%. pci-e 2.0 x16 is exactly x2 faster then pci-e 2.0 x8... there litterally is no card on the market that will challange a pcie 2.0 x16 setup. And there likely won't be for years yet. Maxwell and Treasure islands won't come with a x2 performance gain, so we can be certain for now atleast, that you're still good with pci-e 2.0.

What pci-e 3.0 is good for is things like SSDs... right now there is no graphic card that can really use all that bandwidth.

Now if you're talking about using TWO titanZ or r9-295x2 in xfire/sli on a pci-e 2.0 x16 setup you might see some very minor bottlenecking. or you might not. we'll have to see the benches to see if it happens or not.

Your friends need to go back and look at the numbers some more. Its hard for some people to wrap their heads around the fact that a high end GPU like a 760 is not actually bottlenecked by a pci-e connection that's basically as fast as a 12 year old pci-e 1.0 x16 slot (pci-e 2.0 x8 is as fast as pci-e 1.0 x16); gpus just aren't amazingly bandwidth intensive yet.
m
0
l
April 29, 2014 6:02:52 PM

If I hooked up the Mars and the single 760 will the PC register it as 3 graphics cards?
m
0
l
a b Ĉ ASUS
April 30, 2014 12:04:35 AM

it should. if everything is working properly. The Mars will automatically read as 2 760s...
m
0
l

Best solution

a b Ĉ ASUS
April 30, 2014 1:24:15 AM

EDIT: OMG

STOP! don't buy a 760 to sli with the 760 MARS.

I was just browsing the web and stumbled across some litterature. NVIDIA blocks this type of SLi. AMD allows this type of xfire. So you can get a r9-295x2 and xfire it with a r9-290x for tri xfire... nvidia doesn't allow this type of SLi setup.

It doesn't work on either the 690 + 680 (the 690 is 2 680s in sli on the same board), the only type of SLi a 690 will work with is another 690... it doesn't work with the 760 Mars either... the Mars will only SLi with another 760 Mars.

My bad, i am terribly sorry, i hope you read this in time.
Share
April 30, 2014 2:12:11 AM

Lol soz im a pain im trying to find a place to save money as i have already saved heaps with different ideas which are highly successful this was an idea from the start that i knew would be a pain and would have too many problems even if it works I'm aware of all the problems and wouldn't buy this anyway but thanks for all your help anyways.
m
0
l
!