3DMark Time Spy
Rendered at a 2,560x1,440 QHD resolution and making use of DX12 technologies such as asynchronous compute, explicit multi-adapter and multi-threading, Time Spy is a forward-looking 3DMark benchmark that hints at GPU potential in various upcoming games.
There's little use of a massive heatsink and overclocked frequencies without consistent performance. These hulking coolers are able to manage that easily on GPUs that consume close to 300W.