AMD Radeon RX 640: specs and benchmarks
AMD started Radeon RX 640 sales 13 May 2019. This is GCN 4.0 architecture notebook card based on 14 nm manufacturing process and primarily aimed at gamers. 2 GB of GDDR5 memory clocked at 7 GHz are supplied, and together with 128 Bit memory interface this creates a bandwidth of 112.0 GB/s.
Compatibility-wise, this is card attached via PCIe 3.0 x8 interface. Power consumption is at 50 Watt.
It provides poor gaming and benchmark performance at 5.41 percent of a leader's which is NVIDIA GeForce RTX 2080 Ti.