Intel Core i7 820QM 

Released September, 2009
  • 1.73 GHz
  • Quad core
2.2 Out of 10

CPUBoss Review Our evaluation of the Intel Core i7 820QM among laptop CPUs (over 15W)

Performance

Benchmark performance using all cores

Core i7 820QM
6.4
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Core i7 820QM
6.2
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Core i7 820QM
0.0
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Core i7 820QM
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Core i7 820QM
3.8
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Core i7 820QM
5.0
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

2.2

CPUBoss Score

Combination of all six facets

Core i7 820QM
2.2

Benchmarks Real world tests of the Intel Core i7 820QM

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 820QM
4,596
Core i7 620M
4,227

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 820QM
1,747
Core i7 620M
2,114

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 820QM
120,500 MB/s
Core i7 620M
1,530,000 MB/s
Core i7 720QM
105,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 820QM
4,445
Core i7 620M
3,945

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 820QM
6,244
Core i7 620M
4,529

GeekBench

Core i7 820QM
6,244
Core i7 620M
5,568

PassMark Data courtesy Passmark

Core i7 820QM
3,245
Core i7 620M
2,774

PassMark (Single Core)

Core i7 820QM
947
Core i7 620M
1,205

Specifications Full list of technical specs

summary

Clock speed 1.73 GHz
Turbo clock speed 3.06 GHz
Cores Quad core
Socket type rPGA 988A
Is unlocked No

features

Has a NX bit Yes
Supports trusted computing Yes
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. SSE
  3. SSE2
  4. SSE4.1
  5. SSE3
  6. Supplemental SSE3
  7. SSE4.2
  8. SSE4
Supports dynamic frequency scaling Yes

power consumption

TDP 45W
Annual home energy cost 10.84 $/year
Performance per watt 3.64 pt/W
Typical power consumption 36.56W

bus

Architecture DMI
Transfer rate 2,500 MT/s

details

Architecture x86-64
Threads 8 threads
L2 cache 1 MB
L2 cache per core 0.25 MB/core
L3 cache 8 MB
L3 cache per core 2 MB/core
Manufacture process 45 nm
Transistor count 774,000,000
Max CPUs 1
Clock multiplier 13

overclocking

Overclocked clock speed 2.74 GHz
Overclocked clock speed (Water) 1.73 GHz
Overclocked clock speed (Air) 2.74 GHz

integrated graphics

GPU None

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1333
  2. DDR3-1066
  3. DDR3
Channels Dual Channel
Supports ECC No
Maximum bandwidth 21,333.32 MB/s
Maximum memory size 8,192 MB
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