Total Performance Rating
The TPR graph is a combination of all our benchmarks in which NVIDIA and AMD are on an even playing field.
The TPR number is a combination of:
3DMark 11, Heaven Benchmark V2, Resident Evil 5, Tom Clancy's H.A.W.X.2, Mafia 2 (PhysX Off), Lost Planet 2, Aliens vs. Predator, Street Fighter IV, Far Cry 2, Batman: Arkham Asylum (PhysX Off) and our four High Quality tests which include Mafia 2, Aliens vs. Predator, Street Fighter IV and Far Cry 2.
All of the benchmark results achieved are then combined into a single number. As this graph will grow over time and cards won't be re-tested, next to each model you'll find the driver version that was used when the card was benchmarked.
Overall the HD 6990 4GB doesn't hold any real surprises after you look at what's on offer. You've essentially got two HD 6970s strapped to a single PCB that are slightly down clocked. What's that create overall? Slightly lower performance than a pair of HD 6970s in CrossFire.