AMD Radeon R9 M390X: specs and benchmarks
AMD started Radeon R9 M390X sales 5 May 2015. This is GCN 3.0 architecture notebook card based on 28 nm manufacturing process and primarily aimed at gamers. 4 GB of GDDR5 memory clocked at are supplied, and together with 256 Bit memory interface this creates a bandwidth of 160.0 GB/s.
Compatibility-wise, this is card attached via PCIe 3.0 x16 interface. Power consumption is at 100 Watt.
It provides good gaming and benchmark performance at 26.50 percent of a leader's which is NVIDIA GeForce RTX 3090.