3DMark is now available as a free app for Windows RT devices from Windows Store:
3DMark on Windows RT includes the same benchmarks as the Android and iOS editions. Cross-platform benchmarking across Windows, Android, iOS, and Windows RT is easy, fast and accurate with 3DMark.
3DMark Ice Storm is a DirectX 11 feature level 9 benchmark, (the modern equivalent of DirectX 9), for testing Windows RT tablets and notebooks. It includes two 720p Graphics tests designed to stress graphical (GPU) performance and a Physics test to stress processing (CPU) performance.
3DMark Ice Storm Extreme raises the Graphics tests’ rendering resolution to 1080p and uses higher quality textures and post-processing effects to create a more demanding load for the latest mobile devices.
3DMark Ice Storm Unlimited is a different type of benchmark, one designed to test the raw performance of the underlying hardware. Use Ice Storm Unlimited to compare different chipsets, CPUs and GPUs without vertical sync, display resolution scaling and other operating system factors affecting the result.
You’ll find more details in our technical guide: