Intel Core i7 3840QM 

Released September, 2012
  • 2.8 GHz
  • Quad core

Benchmarks Real world tests of the Intel Core i7 3840QM

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 3840QM
13.55 mHash/s
Core i7 3740QM
13.55 mHash/s

CompuBench 1.5 (Face detection)

Core i7 3840QM
3.41 mPixels/s
Core i7 3740QM
3.39 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 3840QM
-1 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 3840QM

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 3840QM

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 3840QM
2,550,000 MB/s
Core i7 3940XM
2,680,000 MB/s
Core i7 3740QM
2,470,000 MB/s

PassMark Data courtesy Passmark

Core i7 3840QM

PassMark (Single Core)

Core i7 3840QM

Specifications Full list of technical specs


Clock speed 2.8 GHz
Turbo clock speed 3.8 GHz
Cores Quad core
Socket type
  1. rPGA 988B
  2. BGA 1224
Is unlocked No


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

power consumption

Annual home energy cost 10.84 $/year
Performance per watt 17.05 pt/W
Typical power consumption 36.56W


Architecture DMI
Transfer rate 5,000 MT/s


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 22 nm
Max CPUs 1
Clock multiplier 28
Operating temperature Unknown - 105°C


Overclock popularity 0
Overclocked clock speed 3.88 GHz
Overclocked clock speed (Water) 2.8 GHz
PassMark (Overclocked) 4,717.8
Overclocked clock speed (Air) 3.88 GHz

integrated graphics

Label Intel® HD Graphics 4000
Number of displays supported 3
GPU clock speed 650 MHz
Turbo clock speed 1,300 MHz

memory controller

Memory controller Built-in
Memory type DDR3
Channels Dual Channel
Supports ECC No
Maximum bandwidth 12,800 MB/s
Maximum memory size 32,768 MB
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