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Intel Core i7-3720QM vs Intel Core i7-720QM vs Intel Core i7-840QM

Intel Core i7-3720QM

► remove from comparison Intel 3720QM

The Intel Core i7-3720QM is a fast high-end quad-core processor for laptops based on the Ivy Bridge architecture. Due to Hyperthreading, the four cores can handle up to eight threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.6 GHz but can dynamically increase clock rates with Turbo Boost up to 3.4 GHz (for 4 active cores), 3.5 GHz (for 2 active cores) and 3.6 GHz (for 1 active core).

Ivy Bridge is an enhanced die shrink of the Sandy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm (versus 32nm Sandy Bridge CPUs) and are the first to introduce 3D transistors for increased energy efficiency when compared to similarly clocked Sandy Bridge processors. Other new features are integrated PCI Express 3.0 and  DDR3(L)-1600 support.

The performance of the Core i7-3720QM is slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. As a result, overall performance is higher than the former fastest model, the Core i7-2920XM.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1250 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3720QM is specified at a TDP of 45 Watts including graphics card and memory controller. Therefore, the CPU is well-suited for laptops 15-inches or greater.

Intel Core i7-720QM

► remove from comparison Intel 720QM

The Intel Core i7 720QM is a fast quad-core CPU and slowest Core i7 quad core in 2009. It features 4 cores (quad core CPU) and Hyperthreading. Therefore, 8 threads can be worked on simultaneously. Compared to the faster Core i7 mobile CPUs, the 720QM only features 6MB L3 Cache (the faster ones 8 MB).

Because of the Turbo Mode, the CPU is clocked with up to 2.8 GHz and therefore fast for single core applications like older games. Thanks to the 4 cores (and 8 threads), modern multi-threaded applications also profit from this CPU greatly (altough when using all cores, the clock speed remains low).

The Core i7 7xx line has an integrated memory controller for DDR3 bars (1066 or 1333). 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.

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 could reach these high values. Therefore, only large laptops with good cooling solutions can house this CPU.

Intel Core i7-840QM

► remove from comparison 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.

ModelIntel Core i7-3720QMIntel Core i7-720QMIntel Core i7-840QM
CodenameIvy BridgeClarksfieldClarksfield
SeriesIntel Core i7Intel Core i7Intel Core i7
Series: Core i7 Clarksfield
Intel Core i7-3940XM3 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-3920XM2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-3840QM2.8 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-3820QM2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-3740QM2.7 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-3720QM « 2.6 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-3635QM2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-3630QM2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-3615QM2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-3610QM2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-3632QM2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-3612QM2.1 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-3540M3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-3520M2.9 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-3687U2.1 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-3667U2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-3537U2 - 3.1 GHz2 / 4 cores4 MB L3
Intel Core i7-3517U1.9 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-3689Y1.5 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core i7-940XM2.13 - 3.33 GHz4 / 8 cores8 MB L3
Intel Core i7-920XM2 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-840QM1.86 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-820QM1.73 - 3.06 GHz4 / 8 cores8 MB L3
Intel Core i7-740QM1.73 - 2.93 GHz4 / 8 cores6 MB L3
Intel Core i7-720QM « 1.6 - 2.8 GHz4 / 8 cores6 MB L3
Intel Core i7-940XM2.13 - 3.33 GHz4 / 8 cores8 MB L3
Intel Core i7-920XM2 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-840QM « 1.86 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-820QM1.73 - 3.06 GHz4 / 8 cores8 MB L3
Intel Core i7-740QM1.73 - 2.93 GHz4 / 8 cores6 MB L3
Intel Core i7-720QM1.6 - 2.8 GHz4 / 8 cores6 MB L3
Clock2600 - 3600 MHz1600 - 2800 MHz1860 - 3200 MHz
L1 Cache256 KB256 KB256 KB
L2 Cache1 MB1 MB1 MB
L3 Cache6 MB6 MB8 MB
Cores / Threads4 / 84 / 84 / 8
TDP45 Watt45 Watt45 Watt
Transistors1400 Million774 Million774 Million
Technology22 nm45 nm45 nm
Die Size160 mm2296 mm2296 mm2
max. Temp.105 °C100 °C
SocketFCBGA1224, FCPGA988RPGA989RPGA989
FeaturesHD Graphics 4000 (650-1250MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualizationintegrated 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
iGPUIntel HD Graphics 4000 (650 - 1250 MHz)
Architecturex86x86x86
$378 U.S.$546 U.S.$568 U.S.
Announced
Manufacturerark.intel.comark.intel.comark.intel.com
FSB25002500

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
100%
1 3720QM +
610 Points (4%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
100%
1 3720QM +
126 Points (35%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 5.96     avg: 6.6     median: 6.7 (9%)     max: 6.85 Points
min: 2.58     avg: 2.9     median: 2.9 (4%)     max: 2.99 Points
min: 3.21     avg: 3.3     median: 3.3 (4%)     max: 3.45 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 3720QM +
min: 1.39     avg: 1.5     median: 1.5 (35%)     max: 1.5 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 4749     avg: 4827     median: 4821 (29%)     max: 4916 Points
min: 2231     avg: 3109     median: 2995 (18%)     max: 3757 Points
min: 3354     avg: 3426     median: 3438.5 (21%)     max: 3474 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 14659     avg: 18498     median: 18879 (14%)     max: 19231 Points
min: 7709     avg: 8760     median: 8357 (6%)     max: 10398 Points
min: 9007     avg: 9316     median: 9266 (7%)     max: 9726 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 21405     avg: 23108     median: 23211 (15%)     max: 23615 Points
min: 9328     avg: 10025     median: 10161 (6%)     max: 10355 Points
min: 11085     avg: 11521     median: 11513 (7%)     max: 11857 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 5932     avg: 6091     median: 6097 (7%)     max: 6204 Points
min: 3420     avg: 3682     median: 3714 (5%)     max: 3952 Points
min: 4083     avg: 4200     median: 4199 (5%)     max: 4319 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 226.9     avg: 238.9     median: 235.2 (3%)     max: 258.4 s
min: 463.4     avg: 804     median: 502 (6%)     max: 1526 s
min: 476.7     avg: 1014     median: 1282 (15%)     max: 1284 s
wPrime 2.10 - wPrime 2.0 32m *
min: 7.64     avg: 7.8     median: 7.9 (2%)     max: 7.941 s
min: 14.84     avg: 24.9     median: 16.6 (3%)     max: 47.74 s
min: 15.78     avg: 32     median: 40 (8%)     max: 40.2 s
WinRAR - WinRAR 4.0
100%
1 3720QM +
min: 3125     avg: 4249     median: 4365 (7%)     max: 4613 Points
X264 HD Benchmark 4.0 - x264 Pass 2
100%
1 3720QM +
min: 29.85     avg: 35.7     median: 37 (12%)     max: 37.67 fps
X264 HD Benchmark 4.0 - x264 Pass 1
100%
1 3720QM +
min: 127.3     avg: 144.1     median: 146.7 (34%)     max: 150.1 fps
TrueCrypt - TrueCrypt Serpent
100%
1 3720QM +
min: 0.27     avg: 0.4     median: 0.4 (10%)     max: 0.513 GB/s
TrueCrypt - TrueCrypt Twofish
100%
1 3720QM +
min: 0.39     avg: 0.6     median: 0.6 (10%)     max: 0.606 GB/s
TrueCrypt - TrueCrypt AES
100%
1 3720QM +
min: 1.8     avg: 3.1     median: 3.3 (9%)     max: 3.4 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 5981     avg: 6581     median: 6642 (14%)     max: 6696 Points
min: 2892     avg: 3098     median: 3100 (7%)     max: 3307 Points
min: 3435     avg: 3519     median: 3531.5 (8%)     max: 3577 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 10     avg: 10.3     median: 10.2 (2%)     max: 11 s
min: 15     avg: 15.7     median: 15.6 (3%)     max: 19 s
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: 23     avg: 23.9     median: 24 (1%)     max: 24.31 s
min: 34     avg: 36.1     median: 36 (2%)     max: 38 s
min: 29     avg: 29.4     median: 29 (1%)     max: 30.11 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 563     avg: 573     median: 572 (3%)     max: 594 s
min: 824     avg: 868     median: 851 (4%)     max: 1026 s
min: 728     avg: 734     median: 737 (3%)     max: 738 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 100430     avg: 124162     median: 136000 (65%)     max: 136390 MIPS
min: 40000     avg: 43995     median: 43260 (21%)     max: 49460 MIPS
54820 MIPS (26%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 75250     avg: 82146     median: 82470 (63%)     max: 85440 MFLOPS
min: 32380     avg: 32845     median: 33000 (25%)     max: 33000 MFLOPS
38190 MFLOPS (29%)
PCMark 05 - PCMark 05 - Standard
100%
1 720QM +
min: 6074     avg: 6957     median: 6910.5 (14%)     max: 7776 Points
Windows Vista Experience Index - Windows Vista Leistungsindex - Prozessor
100%
1 720QM +
7 Points (100%)
Windows 7 Experience Index - Win7 CPU
7.6 Points (97%)
min: 6.9     avg: 7     median: 7 (90%)     max: 7.1 Points
7.2 Points (92%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 12064     avg: 22380     median: 23290 (18%)     max: 23791 Points
min: 5822     avg: 10413     median: 10663 (8%)     max: 11155 Points
min: 12224     avg: 14498     median: 12238 (9%)     max: 19033 Points
3DMark 11 - 3DM11 Performance Physics
min: 6455     avg: 8020     median: 8217 (20%)     max: 8505 Points
3936 Points (10%)
4686 Points (12%)
3DMark - 3DMark Ice Storm Physics
100%
1 3720QM +
min: 35881     avg: 39128     median: 39127.5 (32%)     max: 42374 Points
3DMark - 3DMark Ice Storm Unlimited Physics
100%
1 3720QM +
min: 39845     avg: 40576     median: 40575.5 (34%)     max: 41306 Points
3DMark - 3DMark Cloud Gate Physics
100%
1 3720QM +
min: 5405     avg: 5873     median: 5921 (15%)     max: 6293 Points
3DMark - 3DMark Fire Strike Standard Physics
100%
1 3720QM +
min: 7455     avg: 8124     median: 8113 (14%)     max: 8803 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
100%
1 3720QM +
3739 Points (37%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
100%
1 3720QM +
12082 Points (12%)
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
100%
1 3720QM +
14452 Points (26%)
Geekbench 3 - Geekbench 3 32 Bit Single-Core
100%
1 3720QM +
3898 Points (76%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
100%
1 3720QM +
12555 Points (20%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
100%
1 3720QM +
3289 Points (49%)
Geekbench 2 - 32 Bit - Geekbench Stream
100%
1 3720QM +
8890 Points (72%)
Geekbench 2 - 32 Bit - Geekbench Memory
100%
1 3720QM +
7573 Points (69%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
100%
1 3720QM +
12725 Points (25%)
Geekbench 2 - 32 Bit - Geekbench Integer
100%
1 3720QM +
11403 Points (23%)
Geekbench 2 - 32 Bit - Geekbench Total Score
100%
1 3720QM +
10848 Points (28%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
100%
1 3720QM +
1240 ms (1%)
Sunspider - Sunspider 1.0 Total Score *
100%
1 3720QM +
93.2 ms (1%)
Octane V2 - Octane V2 Total Score
100%
1 3720QM +
32210 Points (24%)
Power Consumption - Prime95 Power Consumption - external Monitor *
100%
1 3720QM +
80.8 Watt (14%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
100%
1 3720QM +
64.8 Watt (12%)
Power Consumption - Power Efficiency - Cinebench R15 Multi external Monitor
100%
1 3720QM +
9.4 Points per Watt (7%)

Average Benchmarks Intel Core i7-3720QM → 100% n=16

Average Benchmarks Intel Core i7-720QM → 53% n=16

Average Benchmarks Intel Core i7-840QM → 57% n=16

- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

v1.33
log 28. 18:52:25

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 checking url part for id 3064 +0s ... 0s

#2 checking url part for id 519 +0s ... 0s

#3 checking url part for id 975 +0s ... 0s

#4 redirected to Ajax server, took 1753721544s time from redirect:1 +0s ... 0s

#5 did not recreate cache, as it is less than 5 days old! Created at Mon, 28 Jul 2025 05:17:35 +0200 +0s ... 0s

#6 composed specs +0.005s ... 0.005s

#7 did output specs +0s ... 0.005s

#8 getting avg benchmarks for device 3064 +0.001s ... 0.005s

#9 got single benchmarks 3064 +0.016s ... 0.022s

#10 getting avg benchmarks for device 519 +0.001s ... 0.022s

#11 got single benchmarks 519 +0.037s ... 0.059s

#12 getting avg benchmarks for device 975 +0.001s ... 0.059s

#13 got single benchmarks 975 +0.005s ... 0.064s

#14 got avg benchmarks for devices +0s ... 0.064s

#15 min, max, avg, median took s +0.033s ... 0.097s

#16 return log +0s ... 0.097s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)