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| Intel Core i7 840QM vs 720QM |
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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 840QM vs the 720QM. | |||||||
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CPUBoss is not aware of any important advantages of the 720QM vs the 840QM. | |||||||
Benchmarks Real world tests of Core i7 840QM vs 720QM
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Core i7 840QM
5,046
Core i7 720QM
4,379
GeekBench 3 (Single core) Data courtesy Primate Labs
Core i7 840QM
1,892
Core i7 720QM
1,543
GeekBench 3 (AES single core) Data courtesy Primate Labs
Core i7 840QM
129,300 MB/s
Core i7 720QM
105,600 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Core i7 840QM
4,781
Core i7 720QM
4,189
GeekBench (64-bit) Data courtesy Primate Labs
Core i7 840QM
5,579
Core i7 720QM
4,842
GeekBench
Core i7 840QM
6,561
Core i7 720QM
5,786
PassMark Data courtesy Passmark
Core i7 840QM
3,419
Core i7 720QM
3,029
PassMark (Single Core)
Core i7 840QM
1,007
Core i7 720QM
872
Specifications Full list of technical specs
summary | Core i7 840QM | vs | 720QM |
---|---|---|---|
Clock speed | 1.86 GHz | 1.6 GHz | |
Turbo clock speed | 3.2 GHz | 2.8 GHz | |
Cores | Quad core | Quad core | |
Socket type | |||
rPGA 988A | |||
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 | |||
Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
TDP | 45W | 45W | |
Annual home energy cost | 10.84 $/year | 10.84 $/year | |
Performance per watt | 3.37 pt/W | 2.85 pt/W | |
Typical power consumption | 36.56W | 36.56W | |
bus | |||
Architecture | DMI | DMI | |
Number of links | 1 | 1 | |
Transfer rate | 2,500 MT/s | 2,500 MT/s |
details | Core i7 840QM | vs | 720QM |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 8 | 8 | |
L2 cache | 1 MB | 1 MB | |
L2 cache per core | 0.25 MB/core | 0.25 MB/core | |
L3 cache | 8 MB | 6 MB | |
L3 cache per core | 2 MB/core | 1.5 MB/core | |
Manufacture process | 45 nm | 45 nm | |
Transistor count | 774,000,000 | 774,000,000 | |
Max CPUs | 1 | 1 | |
Clock multiplier | 14 | 12 | |
overclocking | |||
Overclocked clock speed | 3.06 GHz | 2.52 GHz | |
Overclocked clock speed (Water) | 1.87 GHz | 1.6 GHz | |
Overclocked clock speed (Air) | 3.06 GHz | 2.52 GHz | |
integrated graphics | |||
GPU | None | None | |
Label | N/A | N/A | |
Latest DirectX | N/A | N/A | |
Number of displays supported | N/A | N/A | |
GPU clock speed | N/A | N/A | |
Turbo clock speed | N/A | N/A | |
3DMark06 | N/A | N/A | |
memory controller | |||
Memory controller | Built-in | Built-in | |
Memory type | |||
DDR3-1333 | |||
DDR3-1066 | |||
DDR3 | |||
Channels | Dual Channel | Dual Channel | |
Supports ECC | No | No | |
Maximum bandwidth | 21,333.32 MB/s | 21,333.32 MB/s | |
Maximum memory size | 8,192 MB | 8,192 MB |
Intel Core i7 840QM ![]() | Intel Core i7 720QM ![]() |
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Comments
Showing 1 comment.
Thomas Maher (04:02 PM, August 20, 2017)