I came across this nice bit of information comparing the Nexus One with the Galaxy S, both running Android 2.2 Froyo:
Hummingbird vs Snapdragon: Rumble in the processor jungle | Crave | CNET UK
Linpack test
Galaxy S (Hummingbird): 14
Nexus One (Snapdragon): 30
Benchmark by Softweg CPU test
Galaxy S (Hummingbird): 1,700
Nexus One (Snapdragon): 2,200
Benchmark by Softweg 2D graphics test
Galaxy S (Hummingbird): 31
Nexus One (Snapdragon): 28
Neocore 3D graphics test
Galaxy S (Hummingbird): 55.7
Nexus One (Snapdragon): 28.4
So basically if you don't play 3D games, the Nexus S is faster. And the Snapdragon is MUCH faster than Hummingbird...
Hummingbird vs Snapdragon: Rumble in the processor jungle | Crave | CNET UK
Linpack test
Galaxy S (Hummingbird): 14
Nexus One (Snapdragon): 30
Benchmark by Softweg CPU test
Galaxy S (Hummingbird): 1,700
Nexus One (Snapdragon): 2,200
Benchmark by Softweg 2D graphics test
Galaxy S (Hummingbird): 31
Nexus One (Snapdragon): 28
Neocore 3D graphics test
Galaxy S (Hummingbird): 55.7
Nexus One (Snapdragon): 28.4
So basically if you don't play 3D games, the Nexus S is faster. And the Snapdragon is MUCH faster than Hummingbird...