The AMD Rx Vega was initially spotted at Videocardz being benchmarked by multiple software like Compubench and Sisoft Sandra and the apparent leak tells us a lot about the upcoming graphics card.

What we know about RX Vega so far

• It has 64 CUs with 64 Stream processors making a total of 4096 SPs
• Code name for the GPU is GFX9
• 9.8 teraflops of computing power
• 14nm FinFet architecture
• HBM2 8GB memory with 2048-bit bus width
• 225w TDP
• Bench marked Vega card is clocked at 1200Mhz
• It’s possible that this is not the fastest Vega GPU, instead a mid-end variant
• 9414 MPix/s half-float GP computing performance compared to GTX 1080 7551 MPix/s
• 806 MPix/s compared to 1080’s 565 MPix/s

Just from this, we can conclude that this GPU on paper should be faster than the GTX 1080, and also that this is a smaller Vega graphics card. If the smaller Vega can defeat the 1080 then we can only imagine how much more capable the highest end Vega is.