AMD Radeon R9 390 X2 technical specs and benchmarks
AMD started Radeon R9 390 X2 sales 3 September 2015 at a recommended price of 1,399 USD. This is a high-end GCN 1.1 architecture desktop card based on 28 nm manufacturing process and primarily aimed at gamers. 2x 8 GB of GDDR5 memory clocked at 5.4 GHz are supplied, and together with 2x 512 Bit memory interface this creates a bandwidth of 2x 345.6 GB/s.
Compatibility-wise, this is 3-slot card attached via PCIe 3.0 x16 interface. An additional 4 8-pin power connectors are required, and power consumption is at 580 Watt.
It provides outstanding gaming and benchmark performance at 94.14 percent of a leader's which is NVIDIA Quadro P6000.