There's a significant rumor on AMD's upcoming Radeon RX Vega graphics card, with WCCFTech reporting that there's a new listing of RX Vega with the code 687F:C1, showing details on RX Vega's GPU clocks, HBM2 clocks and memory bandwidth.
As previously rumored, AMD will reportedly launch the Radeon RX Vega with 8GB of HBM2, featuring memory bandwidth of 484GB/sec. The GPU will be clocked at 1630MHz, which is a big jump over the 1200MHz GPU clocks in previous rumors. The 8GB of HBM2 is also clocked higher than previous rumors, from 700MHz up to 945MHz.
Performance wise, it seems to be dropping right into where I expected it to hit: a competitor to NVIDIA's refreshed GeForce GTX 1080 with its 8GB of GDDR5X clocked at 11Gbps. AMD's new Radeon RX Vega hits 31,873 graphics score in 3DMark 11, which is around 4000 more than the GTX 1080 and double the score of the GTX 1070. The GTX 1080 Ti is still much faster, but I think we'll see another competitor in a few months for the GTX 1080 Ti in Vega form. For now, GTX 1080 11Gbps performance is great... for AMD, as FreeSync gaming displays are significantly cheaper than their G-Sync counterparts.
With these new details on Radeon RX Vega, we see it being 15% faster than the GTX 1080 and 35% faster than the GTX 1070 in 3DMark 11 at least.