Intel Core i7 3940XM 

Released September, 2012
  • 3 GHz
  • Quad core
  • Unlocked

Benchmarks Real world tests of the Intel Core i7 3940XM

Sky Diver Data courtesy FutureMark

Core i7 3940XM
2,134
Core i7 3740QM
2,318
Core i7 3840QM
n.d.

Cloud Gate Data courtesy FutureMark

Core i7 3940XM
6,042
Core i7 3740QM
6,106
Core i7 3840QM
n.d.

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 3940XM
13,202
Core i7 3740QM
11,757
Core i7 3840QM
12,083

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 3940XM
3,370
Core i7 3740QM
3,019
Core i7 3840QM
3,101

GeekBench 3 (AES single core) Data courtesy Primate Labs

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

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 3940XM
12,746
Core i7 3740QM
11,254
Core i7 3840QM
12,054

PassMark Data courtesy Passmark

Core i7 3940XM
9,820
Core i7 3740QM
8,332
Core i7 3840QM
9,022

PassMark (Single Core)

Core i7 3940XM
2,054
Core i7 3740QM
1,872
Core i7 3840QM
1,944

Specifications Full list of technical specs

summary

Clock speed 3 GHz
Turbo clock speed 3.9 GHz
Cores Quad core
Socket type rPGA 988B
Is unlocked Yes

features

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

TDP 55W
Annual home energy cost 13.25 $/year
Performance per watt 14.42 pt/W
Typical power consumption 44.69W

bus

Architecture DMI
Number of links 1
Transfer rate 5,000 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 22 nm
Max CPUs 1
Clock multiplier 30
Operating temperature Unknown - 105°C

overclocking

Overclock popularity 0
Overclocked clock speed 4.45 GHz
Overclocked clock speed (Water) 3 GHz
PassMark (Overclocked) 6,125.4
Overclocked clock speed (Air) 4.45 GHz

integrated graphics

GPU GPU
Label Intel® HD Graphics 4000
Number of displays supported 3
GPU clock speed 650 MHz
Turbo clock speed 1,350 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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