Intel Pentium 4 520J 

Released April, 2004
  • 2.8 GHz
  • Single core

Features Key features of the Intel Pentium 4 520J

clock speed

Pentium 4 520J
2.8 GHz
Core i7 920
2.66 GHz

L2 cache

Pentium 4 520J
1 MB

overclocked clock speed (air)

Pentium 4 520J
3.77 GHz
Core i7 920
4.23 GHz

overclocked clock speed (water)

Pentium 4 520J
4.16 GHz
Core i7 920
4.01 GHz


Pentium 4 520J

Specifications Full list of technical specs


Clock speed 2.8 GHz
Cores Single core
Socket type LGA 775


Has a NX bit Yes
Supports trusted computing No
Has virtualization support No
Instruction set extensions
  1. MMX
  2. SSE
  3. SSE2
  4. SSE3
Supports dynamic frequency scaling No

power consumption

Annual home energy cost 20.24 $/year
Annual commercial energy cost 73.58 $/year
Typical power consumption 68.25W


Architecture FSB
Clock speed 800 MHz


Architecture x86
Threads 2 threads
L2 cache 1 MB
L2 cache per core 1 MB/core
Manufacture process 90 nm
Transistor count 125,000,000
Max CPUs 1
Clock multiplier 14
Voltage range 1.29 - 1.4V
Operating temperature Unknown - 67.7°C


Overclocked clock speed 3.77 GHz
Overclocked clock speed (Water) 4.16 GHz
PassMark (Overclocked) 579.4
Overclocked clock speed (Air) 3.77 GHz

integrated graphics

GPU None
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