回复：最快的计算机生成比特币有多快？
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我注意到，不同 CPU 之间的哈希计算性能差异并没有想象中那么大。与旧 CPU 相比，新 CPU 在哈希计算上的速度提升，不如它在通用基准测试中的提升那么大。
我猜，近来的 CPU 优化一定集中在 I/O 和分支预测之类的方面。大多数程序都充斥着内存访问、比较和分支，很少会长时间埋头进行数学运算。
最新的 SVN 版本会显示 khash/s。每个处理器大约 400 khash/s 是典型水平。
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I've noticed that hashing performance doesn't vary as much between CPUs as you'd expect. Compared to an old CPU, a newer CPU doesn't show as much of a speedup at hashing as it does on general benchmarks.
I guess recent CPU optimizations must have concentrated on things like I/O and branch prediction. Most programs are a bunch of memory access, comparisons and branching, they rarely get down to cranking away at maths for very long.
The latest SVN version has a khash/s display. Around 400 khash/s per processor is typical.