My MacBook Pro runs JavaScript 26.7x as fast as my iPad

TEST                   COMPARISON            FROM                 TO             DETAILS

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** TOTAL **:           26.7x as fast     10999.0ms +/- 0.7%   412.0ms +/- 1.0%     significant

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  3d:                  38.7x as fast      1995.2ms +/- 1.7%    51.6ms +/- 1.3%     significant
    cube:              39.9x as fast       622.2ms +/- 3.5%    15.6ms +/- 4.4%     significant
    morph:             41.5x as fast       796.8ms +/- 0.9%    19.2ms +/- 5.4%     significant
    raytrace:          34.3x as fast       576.2ms +/- 1.5%    16.8ms +/- 3.3%     significant

  access:              41.4x as fast      1621.0ms +/- 2.5%    39.2ms +/- 2.7%     significant
    binary-trees:      20.4x as fast       114.2ms +/- 2.9%     5.6ms +/- 12.2%     significant
    fannkuch:          37.5x as fast       562.0ms +/- 3.8%    15.0ms +/- 5.9%     significant
    nbody:             75.2x as fast       751.8ms +/- 2.9%    10.0ms +/- 8.8%     significant
    nsieve:            22.4x as fast       193.0ms +/- 1.8%     8.6ms +/- 12.9%     significant

  bitops:              39.6x as fast       895.8ms +/- 4.4%    22.6ms +/- 9.2%     significant
    3bit-bits-in-byte: 52.2x as fast       167.0ms +/- 2.2%     3.2ms +/- 17.4%     significant
    bits-in-byte:      22.1x as fast       159.0ms +/- 3.1%     7.2ms +/- 14.4%     significant
    bitwise-and:       33.7x as fast       154.8ms +/- 27.5%     4.6ms +/- 14.8%     significant
    nsieve-bits:       54.6x as fast       415.0ms +/- 0.5%     7.6ms +/- 14.6%     significant

  controlflow:         33.6x as fast       134.6ms +/- 1.8%     4.0ms +/- 22.0%     significant
    recursive:         33.6x as fast       134.6ms +/- 1.8%     4.0ms +/- 22.0%     significant

  crypto:              31.3x as fast       777.4ms +/- 0.5%    24.8ms +/- 4.2%     significant
    aes:               17.4x as fast       229.6ms +/- 1.2%    13.2ms +/- 10.3%     significant
    md5:               41.8x as fast       267.8ms +/- 1.7%     6.4ms +/- 10.6%     significant
    sha1:              53.8x as fast       280.0ms +/- 2.5%     5.2ms +/- 10.7%     significant

  date:                12.5x as fast       739.8ms +/- 1.4%    59.0ms +/- 4.7%     significant
    format-tofte:      12.3x as fast       331.0ms +/- 1.1%    27.0ms +/- 6.5%     significant
    format-xparb:      12.8x as fast       408.8ms +/- 1.8%    32.0ms +/- 9.1%     significant

  math:                44.1x as fast      1543.4ms +/- 0.2%    35.0ms +/- 5.6%     significant
    cordic:            55.6x as fast       544.6ms +/- 0.6%     9.8ms +/- 5.7%     significant
    partial-sums:      32.9x as fast       579.0ms +/- 0.5%    17.6ms +/- 9.5%     significant
    spectral-norm:     55.2x as fast       419.8ms +/- 0.5%     7.6ms +/- 9.0%     significant

  regexp:              47.6x as fast       989.8ms +/- 0.7%    20.8ms +/- 7.8%     significant
    dna:               47.6x as fast       989.8ms +/- 0.7%    20.8ms +/- 7.8%     significant

  string:              14.9x as fast      2302.0ms +/- 1.4%   155.0ms +/- 1.5%     significant
    base64:            20.4x as fast       334.8ms +/- 0.9%    16.4ms +/- 6.8%     significant
    fasta:             15.1x as fast       452.8ms +/- 2.4%    30.0ms +/- 2.9%     significant
    tagcloud:          11.7x as fast       385.2ms +/- 4.3%    33.0ms +/- 0.0%     significant
    unpack-code:       13.5x as fast       620.2ms +/- 1.2%    45.8ms +/- 3.5%     significant
    validate-input:    17.1x as fast       509.0ms +/- 1.1%    29.8ms +/- 3.5%     significant

It’s one thing not to be able to run flash apps. But JavaScript performance like this effectively means the iPad can’t run complex JavaScript apps either. Interesting.