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GTX 680 4GB SLI performance problem

Last response: in Graphics & Displays
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November 8, 2012 10:10:24 PM

Evening, i really need help with a SLI performance problem. I purchased 2 Palit gtx 680 jetstream 4gb graphic cards today from Amazon. Before i installed the cards i uninstalled all nvidia drivers for my gtx 590 (usb drivers, 3d vision etc..). i have installed the new cards with the SLI Asus ribbon, and the latest nvidia drivers from their website for my 2 gtx 680 (version 306.97).

But i am having the same performance as i was getting with my gtx 590, i know that one gtx 680 is not as fast as a gtx 590 but i have enabled SLI in the nvidia control panel, and have downloaded GPU-Z to make sure they are running in SLI, but i have no increase in frame rate performance at all. Is it something i am doing wrong.

Just wondering if it could be my system setup or a problem with my new cards. Here is my set up

Antec high current gamer 900w PSU
Asus Extreme III
Intel core i7 960 @3.2Ghz
6GB DDR3 2300Mhz Corsair Dominator GT
2 x 1TB Black caviar 64mb cache in RAID 0
2 x GTX 680 Palit jetstream 4GB cards

Windows Vista Ultimate 64bit

I hope this is enough info, thank you in advanced.
a c 80 Î Nvidia
November 8, 2012 10:16:29 PM

How are you testing performance? If you drop to windowed mode to test, SLI does not function. Also, what game are you using to test? Not all games scale well, or at all.

What is your monitor resolution, refresh rate, and do you use v-sync? A single monitor will rarely have use for 680 SLI over a 590 SLI, and with v-sync on it would cap the FPS to the most your monitor can display.

What games are you testing? Some games can be CPU bottlenecks, and your CPU, at stock clocks, can cause bottlenecks in some games.
November 8, 2012 10:21:25 PM

What is your CPU usage and what benchmark/game are you using? Not that you have a slow CPU but at stock clocks that may be the limiting factor for some games.
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November 8, 2012 10:21:41 PM

basically i made a note of the fps in bfs, guild wars 2, crysis 2, nfsmw, and i ran the games again (i was in the same location in all games) when i installed the cards and drivers and i am getting the same , in nsfmw in the town area it drops to around 25-30.

my res is 1920 x 1080, i switched v-sync off so i could see how high they went but even with it off its too low.
a c 80 Î Nvidia
November 8, 2012 10:21:43 PM

It would also be a good test to run 3dmark11 on performance mode, so we can see if it is running close to the proper scores.
November 8, 2012 10:24:17 PM

ok downloading 3dmark11 now
a c 80 Î Nvidia
November 8, 2012 10:25:24 PM

siriuslee said:
basically i made a note of the fps in bfs, guild wars 2, crysis 2, nfsmw, and i ran the games again (i was in the same location in all games) when i installed the cards and drivers and i am getting the same , in nsfmw in the town area it drops to around 25-30.

my res is 1920 x 1080, i switched v-sync off so i could see how high they went but even with it off its too low.


Let's start with 3dmark11 performance scores. There could be an issue, but a couple of those games are known for having CPU bottlenecks as well.

Since you did not mention your refresh rate, I'll assume you have a 60hz setup. Honestly, you were pretty much set with the 590, and will hardly ever gain anything with the improvement at that resolution and refresh rate. A 120hz monitor, 3 monitors or higher resolution monitor might be something to look for, if you want to put this upgrade to use.
November 8, 2012 10:27:04 PM

the monitor i have is a asus vg236h, and i did change the refresh rate to 120mhz which i am using now but it still didnt make any difference
a c 80 Î Nvidia
November 8, 2012 10:28:14 PM

siriuslee said:
ok downloading 3dmark11 now


You should see a score around 14,000p, with a graphics score around 18,000-19,000.
November 8, 2012 10:28:39 PM

even though i uninstalled my old gtx 590 drivers, would it be an idea to use driver sweeper
November 8, 2012 10:28:51 PM

just running test now i have downloaded the basic version do i use full 3dmark 11, demo or benchmark test
a c 80 Î Nvidia
November 8, 2012 10:30:23 PM

siriuslee said:
the monitor i have is a asus vg236h, and i did change the refresh rate to 120mhz which i am using now but it still didnt make any difference


Ah, nice, that makes me feel better about having 680 sli. Let's see the scores first, I have a feeling there is something wrong with your system. You will also want to consider getting an aftermarket HSF and OC that CPU to take full advantage of your purchase. High FPS is often run into CPU bottlenecks.
a c 80 Î Nvidia
November 8, 2012 10:31:39 PM

siriuslee said:
just running test now i have downloaded the basic version do i use full 3dmark 11, demo or benchmark test


Run the benchmark, and I doubt the sweep would be needed. I have a feeling your problems, if there are any, are not directly related to the graphics cards, due to having pretty low FPS on the 590's.
November 8, 2012 10:40:07 PM

SCORE
P12668 3DMarks
GRAPHICS SCORE
17666
PHYSICS SCORE
7148
COMBINED SCORE
6452
November 8, 2012 10:47:26 PM

would i be better ff getting a gtx590 or wont it make any difference. i was thinking about getting Rampage IV Formula and a Intel i7 3930K 3.2Ghz
a c 80 Î Nvidia
November 8, 2012 10:57:23 PM

Well, you may have been best off with 670 2GB's. A single 1080p will only have use for 4GB with a heavily modded game, like Skyrim with all the high texture stuff loaded.

However, at that refresh rate, it will provided useful performance.

That score looks a little low, but not a lot low. Do you have Stereoscopic 3D enabled in the Nvidia Control panel? That can drain performance when not playing in 3D.
November 9, 2012 9:07:04 PM

Evening sorry to trouble you. i have disconnected the sli bridge cable and left one card (the one closest to the cpu) connected to my psu and that card starts my pc fine with the display working, but when i plug in the other car (the 3rd pcie slot down) i get no signal and the pc does not even make a peep some or start windows.

is this normal?
a c 80 Î Nvidia
November 9, 2012 9:31:44 PM

Can you download the latest GPU-Z and check what the bus interface says for the 2nd card when you have them in their SLI configuration that worked? I have a feeling that 3rd PCIe slot is working below x8, which would explain the lower SLI performance.
November 9, 2012 9:42:03 PM

yes it shows both cards
a c 80 Î Nvidia
November 9, 2012 9:56:48 PM

But what does it show under the "bus interface" on each card?
November 10, 2012 2:09:13 PM

one is running at x16 2.0 and the other one says x16 2.0, but thats just in windows
November 10, 2012 2:25:14 PM

edit sorry one says 1.1 and the other says 2.0
a c 80 Î Nvidia
November 10, 2012 2:28:10 PM

That shouldn't be an issue.

You never answered my previous question above about whether or not your "Stereoscopic 3D" drivers were enabled in the Nvidia Control panel.
November 10, 2012 2:34:49 PM

Listen to bystander because he has an i7 920 (you a 960) And ordinary 680's in SLI (I meant ordinary but not 4GB) so yeah. xD
a c 80 Î Nvidia
November 10, 2012 2:38:52 PM

He also had a 3D monitor, which I do as well :p 

Given his scores on 3Dmark11, I'm betting the 3D drivers are enabled. I have a couple scripts to turn them on and off because they hurt performance when they are on, even if not running in 3D.
November 10, 2012 2:41:18 PM

no Stereoscopic 3D is disabled
November 10, 2012 2:43:22 PM

enable stereoscopic 3d box is unticked and to double check i clicked on disable 3d in the start menu
a c 80 Î Nvidia
November 10, 2012 2:47:13 PM

I'm kind of at a loss as to why you are about 10% lower on scores than I am. You wouldn't happen to have a spare harddrive around. If you did, a fresh install of Windows on the spare harddrive could let you know if something is wrong with your windows install.

I also noticed that you have Win Vista. I wouldn't expect much of a difference between the two, but I can't rule that out either.
November 10, 2012 2:49:36 PM

no i dont, is there anyother way of turning off 3d just incase it says its off but its not.

is there any other options in nvidia control panel or bios.

i tried installing driver sweeper but it just downloaded a basic version and a bunch of unwanted toolbars
November 10, 2012 2:50:51 PM

i am even willing to pay someone to sort it out for me
a c 80 Î Nvidia
November 10, 2012 3:00:41 PM

It would be a lot easier if I was there, but over the internet, this is very hard to do. Your performance is not bad, but is not up to todays standards. Btw, do you have DX11 installed in Vista? It is not something that was released with Vista, and requires a manual install at this point.
November 10, 2012 4:33:05 PM

Yes I installed it about a year ago. Is there any remote program you could use, as I really want it to be fixed, as I paid nearly £1000 for the two cards.
November 11, 2012 1:20:09 AM

When I did download driver sweeper, their was 2 nvidia sections it picked up even after I uninstalled the drivers, but I just don't trust the program as I have a lot of programs on the pc and I don't like the thought of it getting ruined. Is driver sweeper a good program and even though it downloaded the basic version will it still get rid of the remaining drivers or files.
November 11, 2012 7:59:08 AM

just done driver sweeper and i reinstalled the drivers and when windows loaded a notification come up on the taskbar and said sli capable, but then when i went into nvidia control panel and selected sli, the screen was set up but i just tried nfsmw and guild wars 2 but no performance increase.

i'm going to format a old hard drive, and do a fresh windows install to see if that sorts the issue out, let you know later.
November 11, 2012 11:59:27 AM

just done fresh install no luck
November 11, 2012 12:40:23 PM

no i tried it again, while the two cards are in sli, the one closest to the cpu gives a signal on one of the dvi ports but on on the other on the same card, but the second card (2 slots away from the primary card) gives no signal at all in either dvi ports
!