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.
Still rocking a GeForce GTX 680? Now might be the time to upgrade, particularly if you have high-res gaming ambitions.
At a 4K UHD resolution, Zotac's GeForce GTX 980 Ti AMP! increases performance over the 2012 range-topper by a whopping 480 per cent. It's also 60 per cent quicker than the 2013 GeForce GTX 780 Ti, which isn't bad progress all things considered.