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Intel Core i7-840QM

Intel 840QM

The Intel Core i7 840QM is a high end quad core CPU in 2010. It features 4 cores (quad core CPU) and Hyperthreading. Therefore, 8 threads can be worked on simultaneously.

Because of the Turbo Mode, the CPU is clocked with up to 3.2 GHz (if only one core is used, 2.93 for two cores, and 2 ghz with 4 cores) and therefore can perform very well in single core applications like older games.

The Core i7 line has an integrated memory controller for DDR3 bars (1066 or 1333) supporting a maximum of 8 GB. Therefore, the memory performance is very good (compared to older CPUs with external memory controllers). Still, this also leads to the higher TDP of the whole chip. ECC memory is not supported by the 840QM.

The Core micro-architecture is still very similar to the one used in the Core 2 CPUs, therefore the performance per MHz (neglecting the integrated memory controller, hyperthreading and Turbo Boost) is similar.

The power consumption of up to 45 Watt (TDP) is quite high for a laptop CPU and because of the Turbo Mode, the power consumption should reach these high values. Therefore, the CPU is only suited for large laptops.

SeriesIntel Core i7
CodenameClarksfield
Series: Core i7 Clarksfield
Intel Core i7-940XM compare2130 - 3333 MHz4 / 88 MB
Intel Core i7-920XM compare2000 - 3200 MHz4 / 88 MB
» Intel Core i7-840QM1860 - 3200 MHz4 / 88 MB
Intel Core i7-820QM compare1730 - 3060 MHz4 / 88 MB
Intel Core i7-740QM compare1730 - 2930 MHz4 / 86 MB
Intel Core i7-720QM compare1600 - 2800 MHz4 / 86 MB
Clock Rate1860 - 3200 MHz
Front Side Bus2500
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache8 MB
Number of Cores / Threads4 / 8
Power Consumption (TDP = Thermal Design Power)45 Watt
Transistor Count774 Million
Manufacturing Technology45 nm
Die Size296 mm2
Max. Temperature100 °C
SocketRPGA989
Featuresintegrated DDR3-1066/1333 dual-channel memory controller, Turbo Boost, Hyper Threading, Virtualization Technology VT-x / VT-d, Trusted Execution Technology, Intel 64, Idel States, Enhanced Speedstep, Thermal Monitoring, Execute Disable Bit
64 Bit64 Bit support
Starting Price$568 U.S.
Announcement Date06/01/2010
Product Link (external)Intel Core i7 840QM

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 3.21     avg: 3.3     median: 3.3 (8%)     max: 3.45 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 3354     avg: 3426     median: 3438.5 (35%)     max: 3474 points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 9007     avg: 9316     median: 9266 (16%)     max: 9726 points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 11085     avg: 11521     median: 11513 (13%)     max: 11857 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 4083     avg: 4200     median: 4199 (37%)     max: 4319 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 476.677     avg: 1014     median: 1282.4 (15%)     max: 1284.2 s
wPrime 2.10 - wPrime 2.0 32m *
min: 15.785     avg: 32     median: 40 (8%)     max: 40.2 s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 3435     avg: 3519     median: 3531.5 (24%)     max: 3577 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 13     avg: 13.1     median: 13 (3%)     max: 13.26 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 29     avg: 29.4     median: 29 (1%)     max: 30.108 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 727.71     avg: 734     median: 737 (3%)     max: 738 s
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
38190 MFLOPS (29%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 12224     avg: 14498     median: 12238 (17%)     max: 19033 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Add one or more devices and compare

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Reviews for the Intel Core i7 840QM processor

Dell XPS 15 FHD (NVIDIA GeForce GT 435M, 15.6")
» Review Dell XPS 15 FHD Notebook - Review
» Dell XPS 15 FHD - External Review

Dell XPS 17 (NVIDIA GeForce GT 445M, 17.3")
» Review Dell XPS 17 Notebook - Review
» Dell XPS 17 - External Review

HP EliteBook 8740w-WD943EA (NVIDIA Quadro FX 3800M, 17")
» HP EliteBook 8740w-WD943EA - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Core i7

» Intel Core i7-8809G
   4x 3.1 GHz - 4.2 GHz
» Intel Core i7-8709G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-8706G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-8705G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-4940MX
   4x 3.1 GHz - 4 GHz
» Intel Core i7-6920HQ
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-5950HQ
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-4930MX
   4x 3 GHz - 3.9 GHz
» Intel Core i7-6970HQ
   4x 2.8 GHz - 3.7 GHz
» Intel Core i7-6870HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-4980HQ
   4x 2.8 GHz - 4 GHz
» Intel Core i7-4910MQ
   4x 2.9 GHz - 3.9 GHz
» Intel Core i7-5850HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-3940XM
   4x 3 GHz - 3.9 GHz
» Intel Core i7-5700HQ
   4x 2.7 GHz - 3.5 GHz
» Intel Core i7-5750HQ
   4x 2.5 GHz - 3.4 GHz
» Intel Core i7-6820HK
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6820HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6770HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4900MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4960HQ
   4x 2.6 GHz - 3.8 GHz
» Intel Core i7-6700HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4810MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4870HQ
   4x 2.5 GHz - 3.7 GHz
» Intel Core i7-8665U
   4x 1.9 GHz - 4.8 GHz
» Intel Core i7-3920XM
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-4800MQ
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-4950HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4860HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4720HQ
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-3840QM
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4850HQ
   4x 2.3 GHz - 3.5 GHz
» Intel Core i7-4710HQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-4710MQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-8565U
   4x 1.8 GHz - 4.6 GHz
» Intel Core i7-4770HQ
   4x 2.2 GHz - 3.4 GHz
» Intel Core i7-3820QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3740QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3720QM
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-4700HQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4700MQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4760HQ
   4x 2.1 GHz - 3.3 GHz
» Intel Core i7-4722HQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-2960XM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-4712HQ
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-4712MQ
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-4750HQ
   4x 2 GHz - 3.2 GHz
» Intel Core i7-3635QM
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-3630QM
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4702HQ
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-4702MQ
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-2860QM
   4x 2.5 GHz - 3.6 GHz
» Intel Core i7-2920XM
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-3615QM
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-3610QM
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-3632QM
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-2760QM
   4x 2.4 GHz - 3.5 GHz
» Intel Core i7-2820QM
   4x 2.3 GHz - 3.4 GHz
» Intel Core i7-3612QM
   4x 2.1 GHz - 3.1 GHz
» Intel Core i7-2720QM
   4x 2.2 GHz - 3.3 GHz
» Intel Core i7-2675QM
   4x 2.2 GHz - 3.1 GHz
» Intel Core i7-2670QM
   4x 2.2 GHz - 3.1 GHz
» Intel Core i7-6567U
   2x 3.3 GHz - 3.6 GHz
» Intel Core i7-2635QM
   4x 2 GHz - 2.9 GHz
» Intel Core i7-2630QM
   4x 2 GHz - 2.9 GHz
» Intel Core i7-5557U
   2x 3.1 GHz - 3.4 GHz
» Intel Core i7-4610M
   2x 3 GHz - 3.7 GHz
» Intel Core i7-940XM
   4x 2.13 GHz - 3.33 GHz
» Intel Core i7-4600M
   2x 2.9 GHz - 3.6 GHz
» Intel Core i7-4578U
   2x 3 GHz - 3.5 GHz
» Intel Core i7-920XM
   4x 2 GHz - 3.2 GHz
» Intel Core i7-3540M
   2x 3 GHz - 3.7 GHz
» Intel Core i7-4558U
   2x 2.8 GHz - 3.3 GHz
» Intel Core i7-6600U
   2x 2.6 GHz - 3.4 GHz
» Intel Core i7-6650U
   2x 2.2 GHz - 3.4 GHz
» Intel Core i7-6560U
   2x 2.2 GHz - 3.2 GHz
» Intel Core i7-3520M
   2x 2.9 GHz - 3.6 GHz
» Intel Core i7-6500U
   2x 2.5 GHz - 3.1 GHz
» Intel Core i7-5600U
   2x 2.6 GHz - 3.2 GHz
» Intel Core i7-5650U
   2x 2.2 GHz - 3.2 GHz
» Intel Core i7-2640M
   2x 2.8 GHz - 3.5 GHz
» Intel Core i7-5500U
   2x 2.4 GHz - 3 GHz
» Intel Core i7-5550U
   2x 2 GHz - 3 GHz
» Intel Core i7-840QM
   4x 1.86 GHz - 3.2 GHz
» Intel Core i7-2620M
   2x 2.7 GHz - 3.4 GHz
» Intel Core i7-4600U
   2x 2.1 GHz - 3.3 GHz
» Intel Core i7-4650U
   2x 1.7 GHz - 3.3 GHz
» Intel Core i7-3687U
   2x 2.1 GHz - 3.3 GHz
» Intel Core i7-4510U
   2x 2 GHz - 3.1 GHz
» Intel Core i7-640M
   2x 2.8 GHz - 3.46 GHz
» Intel Core i7-820QM
   4x 1.73 GHz - 3.06 GHz
» Intel Core i7-8500Y
   2x 1.5 GHz - 4.2 GHz
» Intel Core i7-3667U
   2x 2 GHz - 3.2 GHz
» Intel Core i7-4500U
   2x 1.8 GHz - 3 GHz
» Intel Core i7-4550U
   2x 1.5 GHz - 3 GHz
» Intel Core i7-740QM
   4x 1.73 GHz - 2.93 GHz
» Intel Core i7-3537U
   2x 2 GHz - 3.1 GHz
» Intel Core i7-3517U
   2x 1.9 GHz - 3 GHz
» Intel Core i7-620M
   2x 2.66 GHz - 3.33 GHz
» Intel Core i7-720QM
   4x 1.6 GHz - 2.8 GHz
» Intel Core i7-2649M
   2x 2.3 GHz - 3.2 GHz
» Intel Core i7-4610Y
   2x 1.7 GHz - 2.9 GHz
» Intel Core i7-2629M
   2x 2.1 GHz - 3 GHz
» Intel Core i7-2677M
   2x 1.8 GHz - 2.9 GHz
» Intel Core i7-660LM
   2x 2.27 GHz - 3.07 GHz
» Intel Core i7-2637M
   2x 1.7 GHz - 2.8 GHz
» Intel Core i7-2657M
   2x 1.6 GHz - 2.7 GHz
» Intel Core i7-3689Y
   2x 1.5 GHz - 2.6 GHz
» Intel Core i7-2617M
   2x 1.5 GHz - 2.6 GHz
» Intel Core i7-640LM
   2x 2.13 GHz - 2.93 GHz
» Intel Core i7-620LM
   2x 2 GHz - 2.8 GHz
» Intel Core i7-680UM
   2x 1.47 GHz - 2.53 GHz
» Intel Core i7-660UM
   2x 1.33 GHz - 2.4 GHz
» Intel Core i7-640UM
   2x 1.2 GHz - 2.27 GHz
» Intel Core i7-620UM
   2x 1.06 GHz - 2.13 GHz

Surrounding CPUs

+ Intel Core i7-5500U
   2x 2.4 GHz - 3 GHz
+ Intel Core i7-5550U
   2x 2 GHz - 3 GHz
+ Intel Core i5-6260U
   2x 1.8 GHz - 2.9 GHz
+ Intel Core i5-3320M
   2x 2.6 GHz - 3.3 GHz
+ Intel Core i5-4258U
   2x 2.4 GHz - 2.9 GHz
» Intel Core i7-840QM
   4x 1.86 GHz - 3.2 GHz
- Intel Core i5-3230M
   2x 2.6 GHz - 3.2 GHz
- Intel Core i7-10510Y
   4x 1.2 GHz - 4.5 GHz
- Intel Core i7-2620M
   2x 2.7 GHz - 3.4 GHz
- Intel Core i7-4600U
   2x 2.1 GHz - 3.3 GHz
- Intel Core i7-4650U
   2x 1.7 GHz - 3.3 GHz
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Intel Core i7 > Intel Core i7 840QM Notebook Processor
Klaus Hinum, 2010-05-19 (Update: 2012-05-26)