Back in December we looked at the Sapphire Radeon HD 4650 512MB OC graphics card. This mid-range ATI graphics card had performed well under Linux and what separated it from the other Radeon HD 4650 graphics cards on the market was its factory overclock of 650/900MHz. While not factory overclocked beyond the RV730PRO specifications, PowerColor has the PowerColor SCS3 Radeon HD 4650 512MB, which instead offers passive cooling. Is this an ideal candidate for a Linux-based HTPC? In this article we are looking at the PowerColor SCS3 Radeon HD 4650 512MB.