3DMark
3DMark is the latest version of this hugely-popular synthetic benchmark. Making use of DX11 features such as tessellation, compute shaders and multi-threading, it provides modern-day results and is available as a free download.
Adding in the also-new Radeon RX 480 shows that Nvidia holds a significant wattage-to-performance lead. Looking at intra-GPU comparisons, the MSI card is almost seven per cent faster than the Founders Edition.