NVIDIA GeForce 840M: specs and benchmarks
NVIDIA started GeForce 840M sales 12 March 2014. This is Maxwell architecture notebook card based on 28 nm manufacturing process and primarily aimed at office use. 4 GB of DDR3 memory clocked at 2 GHz are supplied, and together with 64 Bit memory interface this creates a bandwidth of 16.02 GB/s.
Compatibility-wise, this is card attached via PCIe 3.0 x8 interface. Power consumption is at 33 Watt.
It provides poor gaming and benchmark performance at 4.21 percent of a leader's which is NVIDIA GeForce RTX 3090.