Ultra-rare unreleased Pentium 4 with 4.0 GHz clock speed discovered — CPU-Z confirms it is an Intel Pentium Extreme Edition 980

A rare Intel engineering sample from the twilight of the Pentium 4 era has surfaced on social media. We’ve never seen this 4.0 GHz chip before. On Reddit, the current owner of the purported Intel Pentium Extreme Edition 980 processor, diegunguyman, has shared photos of the chip, both front and back, along with a CPU-Z screenshot for some deeper technical details. Due to quirks with the CPU-Z app/online database, this CPU won’t validate correctly.

Found this Intel Extreme Edition 980 Engineering…