<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
	<id>https://en.bitcoin.it/w/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Reed</id>
	<title>Bitcoin Wiki - User contributions [en]</title>
	<link rel="self" type="application/atom+xml" href="https://en.bitcoin.it/w/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Reed"/>
	<link rel="alternate" type="text/html" href="https://en.bitcoin.it/wiki/Special:Contributions/Reed"/>
	<updated>2026-05-01T04:10:45Z</updated>
	<subtitle>User contributions</subtitle>
	<generator>MediaWiki 1.43.8</generator>
	<entry>
		<id>https://en.bitcoin.it/w/index.php?title=Vanitygen_keysearch_rate&amp;diff=31750</id>
		<title>Vanitygen keysearch rate</title>
		<link rel="alternate" type="text/html" href="https://en.bitcoin.it/w/index.php?title=Vanitygen_keysearch_rate&amp;diff=31750"/>
		<updated>2012-10-12T00:08:39Z</updated>

		<summary type="html">&lt;p&gt;Reed: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;What key search rate can I expect from hardware X?&lt;br /&gt;
&lt;br /&gt;
Detailed list forthcoming.  Some ballpark estimates are listed below.&lt;br /&gt;
&lt;br /&gt;
 Dual-core desktop CPUs, 32-bit mode: 100-250 Kkey/s.&lt;br /&gt;
 Dual-core desktop CPUs, 64-bit mode: 150-450 Kkey/s.&lt;br /&gt;
 Quad-core desktop CPUs, 32-bit mode: 200-400 Kkey/s.&lt;br /&gt;
 Quad-core desktop CPUs, 64-bit mode: 300-750 Kkey/s.&lt;br /&gt;
 NVIDIA GT200 GPUs: up to 6.5 Mkey/s&lt;br /&gt;
 AMD Radeon 58XX, 68XX GPUs: up to 23.5 Mkey/s.&lt;br /&gt;
 AMD Radeon 69XX GPUs: up to 19.5 Mkey/s.&lt;br /&gt;
&lt;br /&gt;
As [[vanitygen]] performs a lot of large integer arithmetic, running it in 64-bit mode makes a huge difference in key search rate, easily a 50% improvement over 32-bit mode.  If you are using a 64-bit edition of Windows, and not using a GPU, be sure to use vanitygen64.exe.&lt;br /&gt;
&lt;br /&gt;
Radeon 58XX outperforms Radeon 69XX by a very comfortable margin.  Oclvanitygen is sensitive to integer multiply throughput, and Radeon 58XX can multiply concurrently with other operations.  At similar clocks, a hobbled Radeon 5830 will outperform a Radeon 6970.&lt;br /&gt;
&lt;br /&gt;
In custom builds, CPU performance will be less than expected if the OpenSSL library is an older version (&amp;lt;1.0.0d) or is not built with the appropriate optimizations enabled.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Keysearch Rates ==&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! CPU !! GPU !! keys/s !! Comment&lt;br /&gt;
|-&lt;br /&gt;
| Core2 Duo 6600 || nVidia GTX 285 || 3.5 Mkey/s || 100% CPU / 90% GPU [https://bitcointalk.org/index.php?topic=25804.msg378114#msg378114]&lt;br /&gt;
|-&lt;br /&gt;
| Sempron 140 || AMD 5830 || 5.5 Mkey/s || 100% CPU / 60% GPU [https://bitcointalk.org/index.php?topic=25804.msg378114#msg378114]&lt;br /&gt;
|-&lt;br /&gt;
| Core i7 || AMD 6500M || 4.5 Mkey/s || 98% GPU&lt;br /&gt;
|-&lt;br /&gt;
| Core i5 750 @2.67 GHz || nVidia GTS 250 || 1.54 Mkey/s || 110% CPU [https://bitcointalk.org/index.php?topic=25804.msg378820#msg378820]&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Reed</name></author>
	</entry>
</feed>