ATI Mobility Radeon HD 4870: specs and benchmarks
ATI started Mobility Radeon HD 4870 sales 9 January 2009. This is Terascale 1 architecture notebook card based on 55 nm manufacturing process and primarily aimed at office use. 1 GB of GDDR5 memory clocked at 0.89 GHz are supplied, and together with 256 Bit memory interface this creates a bandwidth of 56.83 GB / s.
Compatibility-wise, this is card attached via PCIe 2.0 x16 interface.
It provides poor gaming and benchmark performance at 2.69 percent of a leader's which is NVIDIA GeForce RTX 2080 Ti.