Professional overclocker Xtreme Addict using voltage mods and liquid nitrogen has managed to smash the 1Ghz HBM clock speed barrier and also fully unlock Compute units to unleash Fury X level performance and beyond.
AMDs R9 Fury graphics card comes with 4GB HBM ram just like the Fury X however, it’s a notch down the ladder coming with slightly fewer compute units. Thanks to TX12 over at overclock.net, unlocking these while risky was pretty easy to do.

Using a combination of unlocking the Compute Units and VGPU, VPLL (VDDCI), VNEM and trimpot volt mods, Xtreme Addict was able to achieve a mind blistering fast core clock speed of 1400Mhz (1.4ghz) and a 1000Mhz (1Ghz) HBM memory clock speed producing 1TB/s bandwidth and scoring 10,033 in Fire Strike Extreme, which if you ask us is very respectable indeed.
How can I achieve the same? I hear you asking. Well, XA was kind enough to document the entire process over on the HWBot forum here including how to unlock those hidden compute units.