According to results over at both 3DMark results database as well as Vince's own post, he managed to push the Geforce GTX 1080 Ti up to 2531MHz for the GPU while 11GB of GDDR5X memory was overclocked to 6356MHz (12.71GHz). Of course, the GPU was cooled with LN2 and was running in a system with an Intel Core i7-6950X CPU overclocked up to 5.2GHz on EVGA's X99 motherboard.

This GPU overclock was also enough to break previous single-GPU 3DMark Time Spy and Fire Strike benchmark world records, held by Nvidia Titan X graphics card. The new records include 13291 points in Time Spy, 9352 points in Fire Strike Ultra, 18061 points in Fire Strike Extreme and 30694 points in Fire Strike benchmark.

You can check out the full list of submissions over at HWBOT.org as well as the 3DMark Hall of Fame page.