3DMark Fire Strike Test
3DMark Fire Strike has two benchmark modes: Normal mode runs at 1920x1080, while Extreme mode targets 2560x1440. GPU target frame buffer utilization for normal mode is 1GB and the benchmark uses tessellation, ambient occlusion, volume illumination, and a medium-quality depth of field filter. The more taxing Extreme mode targets 1.5GB of frame buffer memory and increases detail levels across the board. Extreme mode is explicitly designed for CrossFire / SLI systems. GT 1 focuses on geometry and illumination, with over 100 shadow casting spot lights, 140 non-shadow casting point lights, and 3.9 million vertices calculated for tessellation per frame. And 80 million pixels are processed per frame. GT2 emphasizes particles and GPU simulations. Tessellation volume is reduced to 2.6 million vertices and the number of pixels processed per frame rises to 170 million.
When we turn our attention to the graphics subsystem, the Executioner is really able to show its stuff thanks to the two powerful EVGA GeForce GTX 980 Superclocked graphics cards running in SLI (and liquid cooled to boot). It's only trumped in performance by Dell's Alienware Area 51 system, which isn't surprising since it has three GeForce GTX 980 cards.
Bear in mind that you can configure an Executioner with three or even four graphics cards. In that respect, Alienware's benchmarks give you rough idea of the performance gain you'd get by adding another GPU to the mix.