Intel Pentium 120MHz BP80502120 SL25J Socket 5 CPU Processor ICOMP 2 100

Intel Pentium 120MHz BP80502120 SL25J Socket 5 CPU Processor ICOMP 2 100

The Intel Pentium 120MHz (BP80502120, S-Spec SL25J) is a Socket 5 PGA processor running at 120 MHz with a 60 MHz front-side bus and a 2x clock multiplier. It belongs to Intel's P54C generation of classic Pentium processors, built on a 350 nm CMOS process and manufactured in Malaysia. This is a single-core, 32-bit processor with 16 KB of L1 cache (split 8 KB instruction / 8 KB data) and carries an ICOMP 2 rating of 100.

Specifications & What's Included

• Brand: Intel
• Part Number: BP80502120
• S-Spec: SL25J
• Clock Speed: 120 MHz
• Front Side Bus: 60 MHz
• Bus Multiplier: 2x
• Socket: Socket 5 (ZIF, PGA)
• Architecture: P54C (classic Pentium)
• Cores: 1
• Data Width: 32-bit
• L1 Cache: 16 KB (8 KB instruction + 8 KB data)
• Process Technology: 350 nm CMOS
• ICOMP 2 Rating: 100
• Country of Manufacture: Malaysia
• Batch Code (underside die): 16493700AF
• Included: CPU only — no heatsink, fan, or retention bracket

Applications

The classic Intel Pentium processor line launched in 1993 and defined mainstream desktop computing through the mid-1990s. The 120 MHz variant was a mainstream desktop CPU of 1995–1996, positioned between the 100 MHz and 133 MHz Pentium models and aimed at home and business PC builds of that era. Socket 5 motherboards paired the P54C Pentium with chipsets such as Intel's Triton (430FX) and were found in systems running MS-DOS, Windows 3.1, and Windows 95. Today these processors are sought by vintage PC enthusiasts building or restoring period-correct mid-1990s machines, as well as collectors drawn to the ceramic PGA package design that predates the plastic-packaged Pentium MMX generation.