Futuremark's 3DMark06 is an outdated benchmark at this point, although it remains one of the world's most popular and often downloaded. Supporting DirectX 9.0c and advanced Shader Model 2.0 and 3.0 tests, 3DMark06 runs at a default 1280x1024 resolution, so even video cards and monitors that are several years old can use it. However when using this benchmark to compare modern hardware it is important to remember that scores will be affected to a greater extent by CPU processing power. Overclocking the card yields an 11% gain in performance, not bad considering only a 4% increase in power usage, and less than a 6% jump in temps.
Futuremark's latest 3DMark benchmark Vantage is more heavily dependent on raw graphical processing power. Requiring DirectX 10, and thus Windows Vista, in order to run, Vantage utilizes advanced Shader Model 4.0 in its GPU tests. While still running at a low 1280x1024 resolution at the Performance level default, Vantage uses new texture filtering and physics processing capabilities in modern graphics cards. Again we see an 11% increase in performance from overclocking the 5670.
Furmark is another good benchmark to keep on hand. For one it's free, and its fully customizable settings allow you to change resolution and level of anti-aliasing, something other benchmark programs charge you for. I'm testing with three commonly used resolutions: 1280x1024, 1680x1050 and 1920x1200. Furmark shows slightly over 13% gain from overclocking across all resolutions.
Next let's take a look at some real world gaming, starting with Crysis Warhead.