Witcher 3 - Anybody running 4-Way SLI?

Goat-

Goat-

Goat-

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11 Dec 2012
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Hey guys, just got The Witcher 3 and I'm mildly disappointed with the performance.

Firstly I'm running at native 4K so it's expected that it's going to take a lot of grunt to run it fully on 60+ FPS but my problem is that 4-way (and even 3 way) had actually decreased performance.

I'm running 4-Way GTX 980's, and with all new games I play I test them in order from Single GPU > SLI > 3-Way SLI > 4 Way SLI.

All running at maximum settings:

Single GPU = 30fps roughly
SLI = 40-60fps
3 -Way SLI = the same as SLI
4-Way SLI is between 30-40fps.

All drivers are up to date, newest Nvidia game ready drivers installed.

Now I know SLI past 2-Way is flakey at best and a bit of a hit and miss, but I'm disappointed that such a new game actually performing worse with 3-4 GPU's when there's a lot of titles released in the past year or so that hugely benefit from 2+ GPU's.

Anybody else having a similar problem?

I'm not being bottlenecked by any other hardware, a brief of my other specs are:

i7 4930k
4-Way 980's
64gb Hyper-X 2400Mhz
1500W PSU
Evo 850 SSD
 
Your best bet is to sell all 4 980s and get 980ti's/Titan x 2 way SLI.

4GB really isn't enough for 4k and i think kap got crap scaling with 4 way Titan X in W3
 
The Witcher is supposedly only using 1.7GB at 4k, so wouldn't worry about the Vram limit yet, the game is fairly new and would expect 3-4 SLI to be not quite right yet.
 
Even two card support is often spotty so no surprise 4-way SLI is gonna have issues, especially when the game is newly launched. It might get better in the future but I wouldn't bank on it.
 
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