python min max vs if swap

#!/usr/bin/env python

import timeit

def w_swap(min, max):
    if min > max: min, max = max, min

def w_builtin(x, y):
    min_val, max_val = min(x, y), max(x, y)

if __name__ == '__main__':
    from timeit import Timer
    t0 = Timer("w_swap(10, 8)", "from __main__ import w_swap")
    print t0.timeit()
    
    t1 = Timer("w_builtin(10, 8)", "from __main__ import w_builtin")
    print t1.timeit()
    
    print t1.timeit() / t0.timeit()

    # 0.263904094696
    # 0.626050949097
    # 2.41031393789