AMD announced today they are bringing multi-GPU support for RX Vega 64 and RX Vega 56 with their upcoming Radeon Crimson ReLive Edition 17.9.2 drivers. This CrossFire support is for two GPUs only, so it appears AMD is going on the same path as NVIDIA in not having official support for three or more GPUs, which by itself is a point of discussion. Note that these drivers are not out yet, and this announcement serves to alert the user base to what is coming up.

AMD also provided a (low resolution, we are working on a suitable replacement) internal result chart comparing gaming performance with average FPS as the metric, for two RX Vega 64 cards relative to one. We see very impressive scaling in some games such as Far Cry Primal, Metro Last Night Redux, Sniper Elite 4, and The Witcher 3: Wild Hunt a performance increase of more than 80 percent compared to the single GPU performance. As usual, take these numbers as an indication of how things go since we do not have more details available on the testing methodology at this point either. Lastly, no word yet on what else has changed with these drivers but hopefully AMD have addressed the ongoing bugs with Overwatch at the very least.