Intel Pentium 4 521 

Released July, 2005
  • 2.8 GHz
  • Single core

Features Key features of the Intel Pentium 4 521

clock speed

Pentium 4 521
2.8 GHz

L2 cache

Pentium 4 521
1 MB

overclocked clock speed (air)

Pentium 4 521
3.72 GHz
Core2 Quad Q9650
4.15 GHz
Core2 Quad Q6600
3.52 GHz

overclocked clock speed (water)

Pentium 4 521
4.28 GHz
Core2 Quad Q6600
3.75 GHz
Core2 Quad Q9650
4.58 GHz

TDP

Pentium 4 521
84W

Specifications Full list of technical specs

summary

Clock speed 2.8 GHz
Cores Single core
Socket type LGA 775

features

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

TDP 84W
Annual home energy cost 20.24 $/year
Annual commercial energy cost 73.58 $/year
Typical power consumption 68.25W

bus

Architecture FSB
Clock speed 800 MHz

details

Architecture x86-64
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 1.2 - 1.43V
Operating temperature Unknown - 67.7°C

overclocking

Overclocked clock speed 3.72 GHz
Overclocked clock speed (Water) 4.28 GHz
PassMark (Overclocked) 713.8
Overclocked clock speed (Air) 3.72 GHz

integrated graphics

GPU None
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