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Total War: Shogun 2

As opposed to the 2-way SLI configuration whose efficiency is as high as 80-92%, the 3-way SLI setup can only add 16-32% to the frame rate. The good news is that the bottom speed improves along with the average frame rate.

The new GeForce driver makes the GeForce GTX 6xx series fast in this game, the Radeon HD 7970 GHz Edition having a hard time challenging the leader. The Zotac GeForce GTX 670 AMP! Edition is once again competitive against the more expensive GeForce GTX 680.

Crysis 2

The 1920x1080 results in Crysis 2 resemble Tom Clancy’s H.A.W.X. 2 where the 2-way SLI configuration worked well but the third card only spoiled the picture. It is only at 2560x1400 that the 3-way SLI setup does better, outperforming the 2-way one by 26-29%. The scalability isn’t perfect, though, and there are also problems with the bottom speed.

There is no winner in the competition of the world’s fastest single-GPU graphic cards. The Nvidia GeForce GTX 680 and AMD Radeon HD 7970 GHz Edition are also rivaled by the Zotac GeForce GTX 670 AMP! Edition in this test.

Hard Reset Demo

This test doesn’t tell us anything new.

Batman: Arkham City

The multi-GPU configurations feel better in this game. Although there are still problems with the bottom speed, the average frame rate grows by 75-98% with the 2-way SLI and by 14-44% with the 3-way SLI configuration.

There’s no clear winner between the Nvidia GeForce GTX 680 and the AMD Radeon HD 7970 GHz Edition. The Nvidia is ahead when antialiasing is off, but the AMD is faster with antialiasing turned on.

Battlefield 3

The Battlefield 3 results are inconsistent. The 2- and 3-way SLI configurations take turns delivering the higher performance boost depending on the graphics quality settings. The bottom speed is high, which is rather an exception from the general course of things we’ve seen throughout this test session.

The Nvidia GeForce GTX 680 is exactly as fast as the AMD Radeon HD 7970 GHz Edition in this game.

DiRT Showdown

DiRT Showdown is one of the few games in this test session where both the 2-way and 3-way SLI configurations deliver satisfactory results. The former provides a performance boost of 44 to 86% and the latter, 24 to 75%. The AMD Radeon HD 7970 GHz Edition enjoys a huge advantage over the Nvidia GeForce GTX 680, the latter being no faster than the Zotac GeForce GTX 670 AMP! Edition.

Here is a table with the full test results:

 
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