478 Socket Cpu
Overview
Product sourcing insights & recommendations
The 'Socket 478' (mPGA478B) CPU market in 2026 has shifted from mainstream computing to a specialized niche focused on industrial legacy maintenance and retro-gaming enthusiasts WikipediaCpu-World. While technically obsolete, Socket 478 remains critical for systems requiring native ISA expansion slots and physical serial ports, which are missing from modern platforms LenovoAlibaba.
Market Trends & Insights (2026)
* Critical Infrastructure Value: Socket 478 is widely used in CNC machinery, medical devices, and manufacturing controllers AlibabaCpu-World. The cost of sourcing replacement CPUs ($5–$25) is negligible compared to the $10,000+ cost of re-certifying modern hardware for factory floors Alibaba.
* Pricing Bifurcation: Standard Pentium 4 CPUs are highly affordable, with 2.8GHz models starting under $10 Alibaba. However, industrial motherboards with ISA slots command a premium, ranging from $77 to over $600 due to their scarcity and reliability requirements AlibabaAlibabaAlibaba.
* Maintenance Alerts: Unserviced hardware from this era is prone to the "Capacitor Plague" Alibaba. In 2026, "Recapped" or newly manufactured industrial-spec boards are the gold standard for reliability AlibabaAlibaba.
Top Product Categories
* CPUs: The Pentium 4 Extreme Edition (3.4GHz) is the most prized by collectors, while the 2.8GHz Northwood core is favored for stability in legacy Windows applications Cpu-WorldEbay.
* Industrial Boards: Brands like Advantech and Kongduan provide active stock for drop-in factory floor replacements AlibabaAlibaba.
Pentium 4 Extreme Edition Socket 478
Products · 2 lists
Stock 4 P4 2.8 Ghz 512k 400mhz Sl7ey Processor Socket 478 Desktop Plc
Xiamen Mengxiang Huasen Import And Export Co., Ltd.🇨🇳CN1 yr
HH80552PG0802M Pentium 4 Processor HH80552PG0802M LGA-775(37.5x37.5)
Shenzhen Chenghuang Technology Co., Ltd.🇨🇳CN1 yrRelated Searches
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Sources & References
27 sources cited · Verified industry data & reports
Socket 478
Wikipedia
478-contact CPU socket used for Intel's Pentium 4 and Celeron series CPUs. Voltage range 1.25 V. Processor dimensions 35 mm × 35 mm 4 (1.4–3.4 GHz) Celeron (1. ...
CPU Performance by Socket Type - Socket PGA 478
CPU Benchmarks
Intel Core2 Extreme Q9300 @ 2.53GHz. (86%) · Intel Core2 Quad Q9100 @ 2.26GHz. (79%) · Intel Core2 Quad Q9000 @ 2.00GHz. (70%) · Intel Core2 Duo T9900 @ 3.06GHz. ( ...
Socket 478 / Socket mPGA478B
CPU-World
The socket 478 supports desktop and mobile Pentium 4 and Celeron processors from 1.4 GHz to 3.46 GHz with effective front-side bus frequencies 400 MHz - 1066 ...
Socket 478 Explained: Intel Pentium 4 and Celeron ...
Lenovo
Socket 478 is a central processing unit (CPU) socket primarily used by Intel Pentium 4 and Celeron processors. socket 478 typically reaches up to 800 MHz. most ...
What is the Fastest Socket 478 CPU
Intel Community
The 478 socket processors are mostly Pentium 4 processors, however there are also some Pentium 4 Extreme Processors which are for 478 socket.
CPU Specs Database
TechPowerUp
Below you will find a processor list of the CPUs. Socket 478 130 nm. Intel Willamette (Pentium 4) Intel Celeron 2.0 Northwood 1c 2 GHz Socket. Intel Celeron 2. ...