First of all, let’s check out the difference between the AMD Radeon R9 295X2 and the Radeon R9 290X.
While its advantage isn’t so overwhelming at 1920x1080 pixels without antialiasing, the Radeon R9 295X2 is at least twice as fast as the single-processor card with comparable specs at 2560x1440 with various types of antialiasing. In fact, we compare a single Radeon R9 290X with a CrossFireX tandem built out of two such cards but such a CrossFireX configuration would have lower performance due to overheat and GPU throttling. Overall, the Radeon R9 295X2 is an average 98.6% ahead of the Radeon R9 290X across all the tests at the highest graphics quality settings.
The next pair of diagrams help compare the Radeon R9 295X2 and the dual-processor AMD Radeon HD 7990. Although the latter is almost out of the market now and cost $500 less, this comparison is going to be interesting.
The Radeon HD 7990 is not as slow as the single-processor Radeon R9 290X, but the newer dual-processor card from AMD enjoys a 50% or higher advantage in quite a lot of games. Overall, the AMD Radeon R9 295X2 is an average 41.7% ahead of the Radeon HD 7990 at the highest visual quality settings.
And now let’s compare the AMD Radeon HD 7990 and the Nvidia GeForce GTX 690.
The GeForce GTX 690 is much faster in Metro: Last Light with Advanced PhysX turned on and in Batman: Arkham Origins without antialiasing. It also has some advantage in Total War: SHOGUN 2 – Fall of the Samurai, Sleeping Dogs, Sniper Elite V2 and Crysis 3 (without MSAA). The Radeon HD 7990, in its turn, wins in Metro: Last Light (without Advanced PhysX), Hitman: Absolution, Company of Heroes 2, Total War: Rome II, GRID 2, Battlefield 4, Thief and Batman: Arkham Origins (with antialiasing). The two cards are roughly equal to each other across all the tests.
And the last comparison is about whether the newest and overclocked Zotac GeForce GTX Titan Black can catch up with the dual-processor 2-year-old GeForce GTX 690.
The Zotac GeForce GTX Titan Black does outperform the GeForce GTX 690 in those games where SLI technology doesn’t work smoothly, namely in Metro: Last Light, Company of Heroes 2, Total War: Rome II and Thief. In the rest of the games the regular GeForce GTX 690 is equal to or even faster than the overclocked Zotac. That dual-processor card has proved to be a truly future-proof product. We wonder if Nvidia might release its second revision with a base GPU clock rate of 1000 MHz or higher and efficient GPU Boost 2.0, with 4 GB of memory per GPU, and with a memory frequency of 7000 MHz. That would be a highly interesting and very fast graphics card (if priced at the same $999, of course).