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| Intel Core i7 740QM vs 640M |
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Released September, 2010
Intel Core i7 640M
- 2.8 GHz
- Dual core
Reasons to buy the 640M
![]() | Has a built-in GPU Yes |
Cast your vote Do you agree or disagree with CPUBoss?
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Differences What are the advantages of each
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CPUBoss is not aware of any important advantages of the 740QM vs the 640M. | |||||||
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Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required |
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Benchmarks Real world tests of Core i7 740QM vs 640M
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Core i7 740QM
4,698
Core i7 640M
4,385
GeekBench 3 (Single core) Data courtesy Primate Labs
Core i7 740QM
1,616
Core i7 640M
2,187
GeekBench 3 (AES single core) Data courtesy Primate Labs
Core i7 740QM
110,600 MB/s
Core i7 640M
1,570,000 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Core i7 740QM
4,422
Core i7 640M
4,158
GeekBench (64-bit) Data courtesy Primate Labs
Core i7 740QM
5,129
Core i7 640M
4,694
GeekBench
Core i7 740QM
6,097
Core i7 640M
6,359
PassMark Data courtesy Passmark
Core i7 740QM
3,207
Core i7 640M
2,865
PassMark (Single Core)
Core i7 740QM
913
Core i7 640M
1,307
Specifications Full list of technical specs
summary | Core i7 740QM | vs | 640M |
---|---|---|---|
Clock speed | 1.73 GHz | 2.8 GHz | |
Turbo clock speed | 2.93 GHz | 3.46 GHz | |
Cores | Quad core | Dual core | |
Socket type | |||
rPGA 988A | |||
BGA 1288 | |||
Is unlocked | No | No | |
features | |||
Has a NX bit | Yes | Yes | |
Supports trusted computing | Yes | Yes | |
Has virtualization support | Yes | Yes | |
Instruction set extensions | |||
SSE2 | |||
MMX | |||
SSE4 | |||
SSE3 | |||
SSE | |||
SSE4.1 | |||
SSE4.2 | |||
Supplemental SSE3 | |||
AES | |||
Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
TDP | 45W | 35W | |
Annual home energy cost | 10.84 $/year | 8.43 $/year | |
Performance per watt | 3.01 pt/W | 18.3 pt/W | |
Typical power consumption | 36.56W | 28.44W | |
bus | |||
Architecture | DMI | DMI | |
Number of links | 1 | 1 | |
Transfer rate | 2,500 MT/s | 2,500 MT/s |
details | Core i7 740QM | vs | 640M |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 8 | 4 | |
L2 cache | 1 MB | 1 MB | |
L2 cache per core | 0.25 MB/core | 0.5 MB/core | |
L3 cache | 6 MB | 4 MB | |
L3 cache per core | 1.5 MB/core | 2 MB/core | |
Manufacture process | 45 nm | 32 nm | |
Transistor count | 774,000,000 | 382,000,000 | |
Max CPUs | 1 | 1 | |
Clock multiplier | 13 | 21 | |
overclocking | |||
Overclocked clock speed | 2.74 GHz | 3.37 GHz | |
Overclocked clock speed (Water) | 1.73 GHz | 2.8 GHz | |
Overclocked clock speed (Air) | 2.74 GHz | 3.37 GHz | |
integrated graphics | |||
GPU | None | GPU | |
Label | N/A | Intel® HD Graphics | |
Number of displays supported | N/A | 2 | |
GPU clock speed | N/A | 500 MHz | |
Turbo clock speed | N/A | 766 MHz | |
memory controller | |||
Memory controller | Built-in | Built-in | |
Memory type | |||
DDR3-1333 | |||
DDR3-1066 | |||
DDR3 | |||
DDR3-800 | |||
Channels | Dual Channel | Dual Channel | |
Supports ECC | No | No | |
Maximum bandwidth | 21,333.32 MB/s | 17,066.66 MB/s | |
Maximum memory size | 8,192 MB | 8,192 MB |
Intel Core i7 740QM ![]() | Intel Core i7 640M ![]() |
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