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<p>I'm a little surprised that this kind of question is not documented anywhere, or at least I have not been able to find it.</p>
<p>I have only found others asking the same question as me without getting a good answer.</p>
<p>There was a quite exhaustive discussion seven years ago:</p>
<p><a href="https://lists.torproject.org/pipermail/tor-relays/2010-August/000164.html">https://lists.torproject.org/pipermail/tor-relays/2010-August/000164.html</a></p>
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<p>This one got closed before a good answer:</p>
<p><a href="https://tor.stackexchange.com/questions/9966/system-requirements-of-tor-relay-how-powerful-a-cpu-and-ram-should-i-use">https://tor.stackexchange.com/questions/9966/system-requirements-of-tor-relay-how-powerful-a-cpu-and-ram-should-i-use</a></p>
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<p>I am prepared to pay a pile of cash for a computer that I will dedicate to run a relay.</p>
<p>I have a 100 Mbit/s symmetric connection.</p>
<p>What should I buy?</p>
<p>I don't want to buy something that has a too slow CPU that is not able to push enough traffic, but I also don't want to overkill and get a huge electricity bill.</p>
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<p>Sebastian,</p>
<p>How much CPU does your relay have/use?</p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> tor-relays <tor-relays-bounces@lists.torproject.org> on behalf of Sebastian Hoffmann <sebastian@machinewithoutbrain.de><br>
<b>Sent:</b> 17 March 2017 12:39<br>
<b>To:</b> tor-relays@lists.torproject.org<br>
<b>Subject:</b> Re: [tor-relays] What kind of hardware do I need for my relay</font>
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<p>Hi Farid,</p>
<p>I'm running my Guard / Relay on a VPS with only one core and 512MB RAM. Its also hosting a blog, my own mailserver and is member of pool.ntp.org</p>
<p>I haven't encountered any problems so far. It's also connected via 100MBit/sec</p>
<p>You can see the stats here: <a href="https://atlas.torproject.org/#details/F381D6294A93A0078B76D0DCA332133CF5C8F687">https://atlas.torproject.org/#details/F381D6294A93A0078B76D0DCA332133CF5C8F687</a> I experimented a bit in the last weeks with being a bridge,
but I now I'm back as a Relay... therefore the performance charts are not as high as they have been at the end of last year.</p>
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<p>Am 2017-03-17 10:54, schrieb Farid Joubbi:</p>
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<p>Hello,</p>
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<p>I have been running low powered middle relays for a few years.</p>
<p>Now I think it's time for a small upgrade.</p>
<p>I haven't looked at computer hardware for a long time.</p>
<p>What is the cheapest and most power efficient CPU/motherboard that can saturate 100 Mbit/s as a Tor relay?</p>
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<p>Thanks.</p>
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