this post was submitted on 05 Oct 2025
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Ultra-rare unreleased Pentium 4 with 4.0 GHz clock speed discovered — CPU-Z confirms it is an Intel Pentium Extreme Edition 980 (www.tomshardware.com)
submitted 5 days ago by cm0002@piefed.social to c/retrocomputing@lemmy.sdf.org
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[–] tiramichu@sh.itjust.works 12 points 5 days ago

The point is, this is not an overclocked chip.

The factory speeds for released chips topped out at 3.8 GHz, but this is a factory Pentium 4 with a base clock of 4GHz.