SLI vs. CrossFire, Part 2 – High-end multi-GPU scaling
Mafia II
Mafia II is a third-person action-adventure video game which is the sequel to Mafia: The City of Lost Heaven. It is developed by 2K Czech and is published by 2K Games and was released last year. Mafia II is set from 1943 to 1951 in Empire Bay which is a fictional city based mostly on San Francisco and New York City along with some influences from Chicago and also Detroit.
Mafia II is a gritty drama which chronicles the rise of World War II veteran Vito Scaletta who joins the Falcone Crime Family and becomes a ‘made’ man. There are 15 chapters in the game and over two hours of game engine generated cutscenes.
Mafia II makes extensive use of Nvidia’s PhysX whose full effects are seen smoothly only by playing on a PhysX-enabled GeForce and preferably with a second video card dedicated to it. For this article, we used the full retail game with Mafia II’s built-in benchmark with the highest settings for 5780×1080, 2560×1600 and 1920×1200 – without PhysX – and this time we will reserve comment until after both charts. First we test at 1920×1200 and 2560×1600.
We see some pretty good multi-GPU scaling overall. Now at 5760×1080:
The GTX 590 is faster than HD 6970+HD 6990 CrossFire-X3 although both configurations are sufficient for 5760×1080. Our HD 6970 is insufficient to play at this resolution and it would be wise to turn some details down with HD 6990.
This covers our DX9 games and we note some variability with SLI and CrossFire Scaling. Let’s move on to DX10 and DX11 games to see if anything changes.
Thanks for this article. It was a very interesting read
I’m really looking forward to the next parts in the series. Overclocking and potential CPU-bottlenecking in Single-Card VS SLI is something I’ve been wondering about for a long while. And also microstuttering, I’ve never experienced it myself, but it scares me enough to make me cautions of buying another GTX 570 to SLI.
And oh, is it possible to get Battlefield 3 Beta added in your test-games?
Thanks for the feedback. I would not be afraid of getting a second GTX 570 for SLI. Nvidia (and AMD) work to minimize micro stuttering in the drivers and it is something that you can generally further alleviate by backing down on settings if you notice it.
I plan to add BF3 to my regular benching suite after it is released. The beta is only going to be valid for less than a month.
Thank you very much for this! It isn’t easy finding benchmark results with newer drivers. Not for a quad-SLI or quadfire setup that is. Cheers!
Err, strike the quad-SLI and quadfire part, but all the same – it is nice to find more up to date benchmarks!