Back in June we were first to deliver Radeon HD 4850 benchmarks on Linux just after the new high-end ATI/AMD GPUs were launched. We were also successful in using the Radeon HD 4850 with an open-source driver and had exclusively shared that CrossFire support is coming to Linux along with a horde of other improvements. These new Linux features are coming soon, but today we are looking at a new Radeon HD 4850 graphics card from Sapphire Technology. The Sapphire Radeon HD 4850 Toxic 512MB ships with a performance-oriented Zalman cooler and it also comes factory overclocked.