GTX 280 Counter-Strike: Global Offensive benchmark with Intel Core i7-965 @ 3.20GHz at Ultra Quality: 1080p, 1440p, Ultrawide, 4K Performance Benchmarks - GPUCheck United States / USA
GeForce GTX 260/280 versus Radeon HD 4850/4870 > Benchmarks: World in Conflict | TechSpot
NVIDIA's GTX 280: G80, Evolved | Ars Technica
Point of View GeForce GTX 280 Assassin's Creed Edition Review - Performance Summary, Perf/W, Perf/$ | TechPowerUp