The HD4890 is AMD’s latest GPU that is aimed at the enthusiast market. It is positioned just above the HD4870 1 GB and its main competitor of course is the Nvidia Geforce GTX275. In this review we are taking a look at the HD4890 from HIS: the HIS HD 4890 Fan TURBO. As the name implies this is not a regular HD4890-card. Instead HIS has overclocked it by default to give us a bit more performance right out of the box.

We’ve taken the HIS HD 4890 Fan TURBO and compared it to both the HD4870 1 GB as well as the GeForce GTX275.