The Radeon HD 6950 takes the biggest hit from reduced bandwidth in Aliens vs. Predator, its PCIe x4 results trailing the same card in a x8 slot by nearly 7%. The GeForce GTX 570 loses only 3% in this same comparison.
Anyone seeking smooth frame rates at our highest AvP test setting will need at least two of these cards running in either CrossFire or SLI. The x16-to-x4 performance difference drops to 2% for Nvidia and 4% for AMD, but that won’t matter to anyone who actually wants to find a playable setting.
- Are Sixteen Lanes Enough?
- Test Hardware And Benchmarks
- Benchmark Results: 3DMark 11
- Benchmark Results: Aliens Vs. Predator
- Benchmark Results: Crysis
- Benchmark Results: F1 2010
- Benchmark Results: Just Cause 2
- Benchmark Results: S.T.A.L.K.E.R.: Call Of Pripyat
- PCIe Scaling Summary
- Bonus Page: Does CrossFire Work At x16/x4?