Not really. The Passmark is useful to get a broad comparison, but real benchmarks will be closer to what users see in practice. Some results show that clearly.

Not really. The Passmark is useful to get a broad comparison, but real benchmarks will be closer to what users see in practice. Some results show that clearly. E.g. the 780 Ti is in the passmark before the GTX 970, but in games with modern drivers the GTX 970 is better. But well, they are close in both. More severe is the GTX 960 – the passmark sees that card above a R9 380X. That's completely unrealistic, the GTX 960 is slower than a R9 380, without the X. Most user run games and not artificial benchmarks, thus the performance measured in games is closer to what they will get in practice.