Radeon HD 4890 Game Requirement Analysis
Radeon HD 4890 is a High-End Graphics Card based on the R700 Architecture.
R700 was AMD's Second Unified Shader Architecture.
It equips a GPU Codenamed RV790 XT which has 10 Compute Units activated and thus offers 800 Shader Processing Units, 40 TMUs and 16 ROPs. The Central Unit is clocked at 850MHz.
The GPU accesses a 1GB frame buffer of GDDR3, through a 256-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 975MHz.
DirectX 10.1 Support (10.0 Hardware Default) and support for Crossfire.
With a rated board TDP of 190W, it requires at least a 500W PSU and at least 2 available 6-pin connetors.
Gaming benchmarks put its performance on average with a more recent GeForce GTX 460 meaning is it considerably faster than Radeon HD 4870.