outaTiME

John Murch has been running some benchmarks on both his iPhone and MacBook Pro to get a comparison .

For example, JSSpeed:

iPhone

Try/Catch with errors 378
Layer movement 3078
Random number engine (Did not compute)
Math engine 3474

DOM speed Testing… (998/1000)
Array functions 1739
String functions 535
Ajax declaration 1089
Total Duration
10293 ms

Macbook Pro

Try/Catch with errors 5

Layer movement 33
Random number engine 28
Math engine 43
DOM speed 21
Array functions 10
String functions 11
Ajax declaration 8
Total Duration 159 ms

For more benchmarks check out his post.

(Via Ajaxian.)