bye bye 980Ti sli

[Deleted member 66701]

Yup, I found the same when I ran 970's in SLI, hence I "upgraded" to a single 980Ti. Never going multi gpu again.

 

[wellibob]

I mostly disable sli in my main system. Still when something better turns up and then it's sell sell sell. Sli has been pants far too long recently.

 

[Yaayuh!]

Glad you got it sorted OP. I assume just one of the cards being x4 and the other x16 made SLI go cuckoo.

 

[David230]

Glad you got it sorted OP. I assume just one of the cards being x4 and the other x16 made SLI go cuckoo.

Thanks, glad to get it sorted finally.

I had to use legacy chipset drivers for my z77 mobo to get both Ti's back to x16. USB 3 pcie board drivers caused issues with win10 supplied mobo chipset drivers ti seems, no idea why. Going with asus ones solved the problem.

SLI is working nicely again. getting very good scaling. Only downside now is vr and its lack of sli but that doesn't seem such a big deal at the moment as the "single gpu setting" Ti card clocks really well.

 

[Five.Stars]

It will probably get worse before it improves.

However once games are developed from the ground up with DX12 and it's multi GPU technology then we may see a renaissance in xfire and sli in the coming years.

Wont EVER happen unless the consoles go down the multi gpu route - and that is simply never happening!

 

[Dirk Diggler]

Wont EVER happen unless the consoles go down the multi gpu route - and that is simply never happening!

What do consoles have to do with mGPU?

 

[nashathedog]

Wont EVER happen unless the consoles go down the multi gpu route - and that is simply never happening!

A few months back people where stating that the X box Scorpio would use mgpu, Maybe it will but as I said back then I can't see it happening.

What do consoles have to do with mGPU?

If a game is developed for an mgpu console maybe the port will play better with PC mgpu.
Personally I don't think it would matter.

 

[Dirk Diggler]

If a game is developed for an mgpu console maybe the port will play better with PC mgpu.
Personally I don't think it would matter.

Given the market share (PC games account for six times the revenue of console games), games should be ported for console, not the other way round.

I think if we look at PC hardware, we'll see why MGPU is dead. Two factors in particular; the very low percentage of multiple GPU setups and the very high percentage of 1080p setups of which a single GPU can now drive with absolute ease.

mGPU just isn't needed outwith enthusiasts, and even that % split is diminishing with a good number of enthusiasts preferring a Titan P over 2*1080 etc.

 

[Mysterae_]

OP, a few years ago I had similar issues with 780Ti SLI when I installed a Revo PCIE SSD card. It caused games to pause/hang when loading textures and assets, really noticeable in games that load in the background while playing. I mused the thought that it was the path the data took - rather than straight out the SSD to the GPUs via the PCIE lanes, it took a meandering route via CPU, chipset etc which meant the GPUs where waiting for the data that bit longer.

So I now never use any other PCIE cards in a multi-GPU system.

It's interesting to read people's thoughts on the demise of SLI and crossfire, I wish the business (gpu manufacturers and game producers) would sort themselves out so that ALL games are mGPU capable.

 

[DarrenM343]

Without understanding GPU's in depth I don't know why this(mgpu) doesn't just work in the way load balancing works and RAID 0. The game developer shouldn't have to be concerned with working with mgpu setups it should be implemented at the hardware level or in DX automatically. I think if MS, and Nvidia and AMD worked together a bit they could probably do that.

 

[Rroff]

Without understanding GPU's in depth I don't know why this doesn't just work in the way load balancing works and RAID 0. The game developer shouldn't have to be concerned with working with mgpu setups it should be implemented at the hardware level or in DX automatically. I think if MS, and Nvidia and AMD worked together a bit they could probably do that.

The problem is multi GPU currently due to OS/rendering API limitations is at the mercy of motherboard design, CPU design, etc. as well as things that the drivers have control over - with current hardware architectures there is just too much latency when you need to shuttle data around to be able to indiscriminately use the GPUs like a RAID0 setup.

 

[David230]

Tried Hitman this morning and things are looking much better.

Scaling is excellent using 373.66 drivers and my good old asus legacy chipset drivers.

4k ultra settings FXAA (dx11)

Benchmark Results:
---- CPU ----
8598 frames
74.86fps Average
9.04fps Min
192.61fps Max
13.36ms Average
5.19ms Min
110.59ms Max

Fallout 4 is anywhere between 80-110fps @ 4k ultra FXAA

 

[moogle]

I have dropped SLI of my 980 sc long time ago and moved to single 1070 much much better quieter and silent. SLI nowadays its a scam which nvidia should be held responsible... lack of support etc

It's always been rubbish from the start. I remember when I heard about it during the release of the GeForce 6800 Ultra cards. I thought "great! 2 cards equals 2x the performance/fps". It never even reached near that from the start.

Good way to sell loads of units to the customers though!

Anyway I don't think NVIDIA should be held responsible, they've dropped the tri and quad SLI stuff and don't really promote it anymore. People still buy and have setups for it though..

 

[David230]

I'm getting between 60-80% scaling in games I am playing. Need to try some more out but I am happy with that as it gives me enough headroom to set things how I like in the options.

EDIT: 60-90% scaling

 

[ancientmariner]

Up until last month i had been running sli for over 6 years with the 5 and 7 series of nvidia cards. In that time I have watched the performance nose dive and I eventually gave up and bought a 1080, just not worth it anymore.