Although only the RX VEGA 64 GAMING OC 8G is listed on Gigabyte's website, it appears that both the custom RX Vega 64 and the custom RX Vega 56 from Gigabyte will share the design. Speaking of the design, Gigabyte went all-in with a custom-design PCB with 12+1-phase VRM, drawing power from two 8-pin PCIe power connectors, ultra durable design with high-grade chokes and capacitors, and a factory-overclock which puts the GPU base clock at 1276MHz and the GPU Boost clock at 1560MHz (1247/1546MHz reference).
In order to keep those power-hungry Vega GPUs well cooled, Gigabyte has decided to use a version of its Windforce 2X cooler with two 100mm fans which spin in opposite directions, split heatsink with angular fin design, copper heatpipes in direct contact with the GPU, and a special backplate with a heatpipe and copper block behind the GPU.
Gigabyte also slightly changed the display output configuration, leaving it with three HDMI 2.0b and three DisplayPort 1.4 outputs and marketing an ability to run up to six monitors at the same time.
Unfortunately, we do not have any details regarding a custom version of Gigabyte's RX Vega 56 but hopefully, that one will show up soon as well and we guess it could be based on a similar design. Gigabyte did not reveal any details regarding the price or the availability date but judging by other partners, these should show up on retail/e-tail shelves before Christmas.