I have an older computer I'd like to set Tor up on, but I'm trying to figure out if its Intel Pentium 2 will support it. I have 2GB of RAM, XP SP3, adequate graphic/audio cards, etc. I' just like to know if an Intel Pentium 2 will run it, and if so, will I get any notable issues?

  • Please provide more information. What particular processor do you have, what clock speed is it running at, how much cache does it have, etc.? – Sam Whited Oct 16 '13 at 1:50
  • I said Intel Pentium 2 in the first sentence :) – Timtech Oct 16 '13 at 10:36
  • There are lots of processors with various specs in the Pentium II range (though I suspect any of them are fine). – Sam Whited Oct 16 '13 at 14:33
  • @Timtech Should this be client only? (in which case I'd say there's no problem or more information required, otherwise....) – bastik Oct 16 '13 at 14:58

Currently there should be nothing preventing Tor from running on a Windows XP box with a Pentium 2 class CPU, and your system has more than sufficient RAM for most use cases (Quite a few people run Tor successfully on the Raspberry Pi).


  • Windows XP is approaching End of Life, and it is unknown how long the Tor Project will continue to support Windows XP past that date (Using a operating system that is no longer getting security updates is suboptimal in general).
  • The developers are in the process of incorporating a better optimized Curve25519 implementation that requires SSE2. Once this code is in official builds, you will need to compile your own copy of Tor (See #8897).
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