AutoCAD 2013: 3D Performance
AMD FirePro W-Series And The Overall Performance Index
Cadalyst Systems Benchmark 2012 provides both task-specific metrics and an overall performance index. The performance index weighs performance on different tasks to try to get as close as possible to a real-world workload.
Both AMD FirePro W-series cards lose the task-specific benchmarks, but lead the overall 3D performance index, beating Nvidia’s offerings and the older AMD cards. Apparently, the company's drivers are mature enough to do well in these tasks.