和MacBook Pro对比

    很多人关心MBA（MacBook Air）和MBP（MacBook Pro）这两款同样出自苹果之手的13.3寸笔记本体积上会相差多少，下图就是最好的对比，从中我们不难看出，最薄处仅4mm的MBA比MBP薄得不是一点半点。

    MBA的性能和MBP也有不小的差距，甚至有网友作了下面这张图来进行恶搞，其实对于MBA的用户来说，MBA目前的性能已经足够了。

    恶搞MBA

    下面是具体的对比情况，需要说明的是，测试使用的软件是XBench，测试平台则是Leopard。

    Air (1.6GHz Core 2 Duo) MBP (2.16GHz Core Duo) MBP (2.2GHz Core 2 Duo, Tiger) MacBook (2.2GHz Core 2 Duo) iMac (2.4GHz Core 2 Duo)

    CPU 79.98 90.06 112.93 126.66 138.58

    GCD Loop 9.67 Mops/s 14.89 Mops/s 13.17 Mops/s 13.43 Mops/s 14.91 Mops/s

    Floating Point Basic 2.03 Gflop/s 2.34 Gflop/s 2.96 Gflop/s 2.95 Gflop/s 3.23 Gflop/s

    vecLib FFT 1.71 Gflop/s 1.68 Gflop/s 2.98 Gflop/s 3.36 Gflop/s 3.66 Gflop/s

    Floating Point Library 12.82 Mops/s 15.78 Mops/s 14.15 Mops/s 17.80 Mops/s 19.43 Mops/s

    Thread Test 148.81 185.75 219.18 186.4 208.77

    Computation 2.77 Mops/s 3.36 Mops/s 4.04 Mops/s 3.58 Mops/s 3.56 Mops/s

    Lock Contention 7.04 Mlocks/s 9.07 Mlocks/s 10.47 Mlocks/s 8.48 Mlocks/s 11.06 Mlocks/s

    Air (1.6GHz Core 2 Duo) MBP (2.16GHz Core Duo) MBP (2.2GHz Core 2 Duo, Tiger) MacBook (2.2GHz Core 2 Duo) iMac (2.4GHz)

    Memory Test 140.42 129.56 137.1 150.23 150.82

    System 143.51 139.25 126.92 158.95 151.56

    Allocate 718.86 Kalloc/s 731.25 Kalloc/s 401.22 Kalloc/s 856.78 Kalloc/s 657.80 Kalloc/s

    Fill 5770.30 MB/s 5565.31 MB/s 6490.47 MB/s 6480.99 MB/s 6606.88 MB/s

    Copy 2802.78 MB/s 2652.96 MB/s 2954.03 MB/s 2914.92 MB/s 3014.12 MB/s

    Stream 137.46 121.14 149.05 142.41 150.08

    Copy 2621.64 MB/s 2400.99 MB/s 2923.94 MB/s 2799.64 MB/s 2926.68 MB/s

    Scale 2602.03 MB/s 2412.90 MB/s 2918.16 MB/s 2797.66 MB/s 3022.24 MB/s

    Add 3230.58 MB/s 2703.93 MB/s 3359.19 MB/s 3196.17 MB/s 3364.41 MB/s

    Triad 3199.37 MB/s 2681.42 MB/s 3368.41 MB/s 3211.97 MB/s 3328.48 MB/s

    Air (1.6GHz Core 2 Duo) MBP (2.16GHz Core Duo) MBP (2.2GHz Core 2 Duo, Tiger) MacBook (2.2GHz Core 2 Duo) iMac (2.4GHz)

    Quartz Graphics Test 96.89 144.23 141.5 154.32 193.4

    Line 6.94 Klines/s 8.84 Klines/s 9.23 Klines/s 9.69 Klines/s 11.64 Klines/s

    Rectangle 32.23 Krects/s 49.67 Krects/s 51.59 Krects/s 51.66 Krects/s 70.02 Krects/s

    Circle 7.22 Kcircles/s 11.31 Kcircles/s 13.30 Kcircles/s 11.54 Kcircles/s 15.29 Kcircles/s

    Bezier 2.49 Kbeziers/s 3.58 Kbeziers/s 3.71 Kbeziers/s 3.79 Kbeziers/s 4.51 Kbeziers/s

    Text 5.53 Kchars/s 9.12 Kchars/s 6.65 Kchars/s 10.39 Kchars/s 12.66 Kchars/s

    OpenGL Graphics Test 17.26 175.06 129.88 23.36 152.66

    Spinning Squares 21.89 frames/s 222.08 frames/s 164.76 frames/s 29.64 frames/s 193.65 frames/s

    User Interface Test 105.81 217.79 303.98 244.28 335.18

    Elements 485.60 refresh/s 999.54 refresh/s 1.40 Krefresh/s 1.12 Krefresh/s 1.54 Krefresh/s

    Air (1.6GHz Core 2 Duo) MBP (2.16GHz Core Duo) MBP (2.2GHz Core 2 Duo, Tiger) MacBook (2.2GHz Core 2 Duo) iMac (2.4GHz)

    Disk Test 24.05 27.59 38.13 39.64 80.72

    Sequential 42.21 49.22 59.81 66.07 115.15

    Uncached Write 30.96 MB/s [4K blocks] 31.32 MB/s [4K blocks] 42.60 MB/s [4K blocks] 53.34 MB/s [4K blocks] 72.17 MB/s [4K blocks]

    Uncached Write 31.19 MB/s [256K blocks] 28.37 MB/s [256K blocks] 39.19 MB/s [256K blocks] 47.63 MB/s [256K blocks] 66.51 MB/s [256K blocks]

    Uncached Read 7.27 MB/s [4K blocks] 12.11 MB/s [4K blocks] 11.59 MB/s [4K blocks] 10.83 MB/s [4K blocks] 27.81 MB/s [4K blocks]

    Uncached Read 30.42 MB/s [256K blocks] 28.65 MB/s [256K blocks] 39.37 MB/s [256K blocks] 49.62 MB/s [256K blocks] 69.83 MB/s [256K blocks]

    Random 16.81 19.16 27.99 28.31 62.13

    Uncached Write 0.57 MB/s [4K blocks] 0.65 MB/s [4K blocks] 1.08 MB/s [4K blocks] 1.03 MB/s [4K blocks] 2.67 MB/s [4K blocks]

    Uncached Write 18.35 MB/s [256K blocks] 17.49 MB/s [256K blocks] 19.24 MB/s [256K blocks] 22.73 MB/s [256K blocks] 48.45 MB/s [256K blocks]

    Uncached Read 0.35 MB/s [4K blocks] 0.46 MB/s [4K blocks] 0.41 MB/s [4K blocks] 0.48 MB/s [4K blocks] 0.63 MB/s [4K blocks]

    Uncached Read 13.28 MB/s [256K blocks] 15.08 MB/s [256K blocks] 16.33 MB/s [256K blocks] 19.31 MB/s [256K blocks] 27.08 MB/s [256K blocks]