Intel Core2 Quad Q8400 

Released April, 2009
  • 2.66 GHz
  • Quad core
5.1 Out of 10

CPUBoss Review Our evaluation of the Intel Core2 Quad Q8400 among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores

Core2 Quad Q8400
5.0
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Core2 Quad Q8400
5.3
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Core2 Quad Q8400
0.0
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Core2 Quad Q8400
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Core2 Quad Q8400
5.6
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Core2 Quad Q8400
n.d.
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

5.1

CPUBoss Score

Combination of all six facets

Core2 Quad Q8400
5.1

Benchmarks Real world tests of the Intel Core2 Quad Q8400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core2 Quad Q8400
5,035

GeekBench 3 (Single core) Data courtesy Primate Labs

Core2 Quad Q8400
1,465

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Quad Q8400
113,900 MB/s
Core2 Quad Q6600
102,800 MB/s
Core2 Quad Q9400
114,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core2 Quad Q8400
4,623

GeekBench (64-bit) Data courtesy Primate Labs

Core2 Quad Q8400
5,191

Cinebench R10 32-Bit

Core2 Quad Q8400
11,577

Cinebench R10 32-Bit (Single Core)

Core2 Quad Q8400
3,198

PassMark Data courtesy Passmark

Core2 Quad Q8400
3,234

Specifications Full list of technical specs

summary

Clock speed 2.66 GHz
Cores Quad core
Socket type LGA 775

features

Has a NX bit Yes
Supports trusted computing No
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. SSE
  3. SSE2
  4. SSE4.1
  5. SSE3
  6. Supplemental SSE3
Supports dynamic frequency scaling Yes

power consumption

TDP 95W
Annual home energy cost 51.39 $/year
Annual commercial energy cost 130.79 $/year
Performance per watt 1.14 pt/W
Idle power consumption 96W
Peak power consumption 149.3W
Typical power consumption 135.98W

details

Architecture x86-64
Threads 4 threads
L2 cache 4 MB
L2 cache per core 1 MB/core
Manufacture process 45 nm
Transistor count 456,000,000
Max CPUs 1
Clock multiplier 8
Voltage range 0.85 - 1.36V
Operating temperature Unknown - 71.4°C

overclocking

Overclock popularity 29
Overclocked clock speed 3.46 GHz
Overclocked clock speed (Water) 3.78 GHz
Overclocked clock speed (Air) 3.46 GHz

integrated graphics

GPU None

bus

Architecture FSB
Clock speed 1,333 MHz
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