Intel Pentium 955 

Released December, 2005
  • 3.46 GHz
  • Dual core
  • Unlocked
2.8 Out of 10

The FSB easily went from 266MHz all the way up to 320MHz with no extra voltage to the MCH, FSB, or processor.
by Legit Reviews (Dec, 2005)
The lower end processors should provide overclockers and enthusiasts who want to overclock a great price versus performance value as you will see when you get to the overclocking section.
by Legit Reviews (Dec, 2005)

CPUBoss Review Our evaluation of the Intel Pentium 955 among desktop CPUs (over 75W)


Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


Are you paying a premium for performance?

Pentium 955
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


CPUBoss Score

Combination of all six facets

Benchmarks Real world tests of the Intel Pentium 955

GeekBench (32-bit) Data courtesy Primate Labs

Pentium 955


Pentium 955

Cinebench R10 32-Bit

Pentium 955

Cinebench R10 32-Bit (Single Core)

Pentium 955

sysmark 2007 (overall)

Pentium 955

sysmark 2007 (3d)

PassMark Data courtesy Passmark

Pentium 955

PassMark (Single Core)

Pentium 955

Specifications Full list of technical specs


Clock speed 3.46 GHz
Cores Dual core
Socket type LGA 775
Is unlocked Yes


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

power consumption

TDP 130W
Annual home energy cost 31.32 $/year
Annual commercial energy cost 113.88 $/year
Performance per watt 0.49 pt/W
Typical power consumption 105.63W


Architecture FSB
Clock speed 1,066 MHz


Architecture x86-64
Threads 4 threads
L2 cache 4 MB
L2 cache per core 2 MB/core
Manufacture process 65 nm
Transistor count 376,000,000
Max CPUs 1
Clock multiplier 13
Voltage range 1.2 - 1.34V
Operating temperature Unknown - 68.6°C


Overclocked clock speed 4.39 GHz
Overclocked clock speed (Water) 4.61 GHz
Overclocked clock speed (Air) 4.39 GHz

integrated graphics

GPU None

memory controller

Memory controller Built-in
Supports ECC No
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