Description
The PowerColor HD 4890 features the RV790XT core and is built on a 55nm process and contains close to 1 billion transistors, 800 processor cores, 1 GB of GDDR5 memory running through a 256bit bus. Clock speeds come in at 850MHz on the GPU core and 975 on the GDDR5 memory. For all intents and purposes this looks much like a well binned HD 4870 1GB video card.
