---
layout: forum
title: 'Re: How fast do the fastest computers generate bitcoins?'
grand_parent: Forum Posts
parent: Bitcoin Forum
nav_order: 131
date: 2010-06-22 04:35:26 UTC
original: https://bitcointalk.org/index.php?topic=197.msg1656#msg1656
---

# Re: How fast do the fastest computers generate bitcoins?

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Re: How fast do the fastest computers generate bitcoins?
June 22, 2010, 04:35:26 AM

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.
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