Vortez posted a review on the CORSAIR M65 RGB ULTRA
A quote from the article:
New on the RGB Ultra is an 8000Hz polling rate, up from a paltry 1000Hz on the out-going model, which works in tandem with the CORSAIR AXON Hyper-Processing Technology, to improve the responsiveness of the mouse by up to 8 fold.CORSAIR M65 RGB ULTRA Review