FirePro S9000 Game Requirement Analysis
FirePro S9000 is a server GPU based on the 28nm GCN architecture.
It's based on the Tahiti PRO Core (same used on 7950) and therefore offers 1792 Shader Processing Units, 112 TMUs and 32 ROPs on a 384-bit interface of fast GDDR5. The central unit is clocked 900MHz while the memory clock operates at 1375MHZ.
Compared to Radeon HD 7950, its central unit is slightly higher clocked but overall its gaming performance is lower than Radeon HD 7950 because Radeon HD 7950 benefits from certified gaming drivers which unlock the GCN's architecture potential while FirePro S9000 is made for professional applications. Therefore, expect its performance to be between 1% and 5% worse than Radeon HD 7950.