Intel Core i7-3840QM vs Intel Core i7-3720QM vs Intel Core i7-3687U

Intel Core i7-3840QM

► remove Intel 3840QM

The Intel Core i7-3840QM is a fast quad-core processor for laptops based on the Ivy Bridge architecture and successor of the i7-3820QM. 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 2.8 GHz but can dynamically increase clock rates with Turbo Boost up to 3.6 GHz (for 4 active cores), 3.7 GHz (for 2 active cores) and 3.8 GHz (for 1 active core). Furthermore, the CPU offers 8 MB Last Level 3 Cache.

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 i7-3840QM should be slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. Overall, performance should be similar to the Core i7-3920XM.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1300 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3840QM 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 i7-3720QM

► remove 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 i7-3687U

► remove

The Intel Core i7-3687U is the fastest ULV-processor for laptops based on the Ivy Bridge architecture at the time of introduction in Q1 2013. Due to Hyperthreading, the two cores can handle up to four threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.1 GHz but can dynamically increase clock rates with Turbo Boost up to 3.1 GHz (for 2 active cores) and 3.3 GHz (for 1 active core). As its Sandy-Bridge-based predecessors, it offers a 4 MB L3-Cache.

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 i7-3687U is slightly above a similarly clocked Sandy Bridge processor due to the architectural improvements. Therefore, and because of the higher clock speed, the old Core i7-2677M is easily outperformed.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 350 MHz up to 1200 MHz with Turbo Boost, delivering a performance comparable with an AMD Radeon HD 6620G.

The ULV-CPUs are rated at a TDP of 17 W including graphics card and memory controller.  Therefore, the CPU is suited for small laptops and ultrabooks.

Intel Core i7-3840QMIntel Core i7-3720QMIntel Core i7-3687U
Intel Core i7Intel Core i7Intel Core i7
Ivy BridgeIvy BridgeIvy Bridge
: Core i7 Ivy Bridge
Intel Core i7-3940XM3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM2900 - 3800 MHz4 / 88 MB
» Intel Core i7-3840QM2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M3000 - 3700 MHz2 / 44 MB
Intel Core i7-3520M2900 - 3600 MHz2 / 44 MB
Intel Core i7-3687U2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y1500 - 2600 MHz2 / 44 MB
Intel Core i7-3940XM3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM2700 - 3700 MHz4 / 86 MB
» Intel Core i7-3720QM2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M3000 - 3700 MHz2 / 44 MB
Intel Core i7-3520M2900 - 3600 MHz2 / 44 MB
Intel Core i7-3687U2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y1500 - 2600 MHz2 / 44 MB
Intel Core i7-3940XM3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M3000 - 3700 MHz2 / 44 MB
Intel Core i7-3520M2900 - 3600 MHz2 / 44 MB
» Intel Core i7-3687U2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y1500 - 2600 MHz2 / 44 MB
2800 - 3800 MHz2600 - 3600 MHz2100 - 3300 MHz
256 KB256 KB128 KB
1 MB1 MB512 KB
8 MB6 MB4 MB
4 / 84 / 82 / 4
45 45 17
1400 1400
22 22 22
160 mm2160 mm2
105 °C105 °C105 °C
HD Graphics 4000, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 4000 (650-1250MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 4000 (350-1200 MHz), Turbo Boost 2.0, Hyper-Threading, Virtualization VT-x, Virtualization for Directed I/O (VT-d), Trusted Execution, AES, Intel 64, Anti-Theft, My WiFi, Idle States, Enhanced SpeedStep, Thermal Monitorin, Execute Disable Bit
iGPUIntel HD Graphics 4000 (650 - 1300 MHz)Intel HD Graphics 4000 (650 - 1250 MHz)Intel HD Graphics 4000 (350 - 1200 MHz)
$568 U.S.$378 U.S.
FCBGA1224, FCPGA988BGA1023
Intel Core i7 3720QMIntel Core i7 3687U

Cinebench R15 - CPU Multi 64Bit
100%
1 3720QM +
610 Points (14%)
Cinebench R15 - CPU Single 64Bit
100%
1 3720QM +
126 Points (56%)
Cinebench R11.5 - CPU Multi 64Bit
100%
1 3840QM +
min: 7     avg: 7.1     median: 7.1 (16%)     max: 7.15 Points
95%
1 3720QM +
min: 5.96     avg: 6.6     median: 6.7 (15%)     max: 6.85 Points
Cinebench R11.5 - CPU Single 64Bit
100%
1 3840QM +
min: 1.58     avg: 1.6     median: 1.6 (62%)     max: 1.59 Points
93%
1 3720QM +
min: 1.39     avg: 1.5     median: 1.5 (57%)     max: 1.5 Points
Cinebench R10 - Rendering Single 32Bit
100%
1 3840QM +
min: 5137     avg: 5145     median: 5144.5 (53%)     max: 5152 Points
94%
1 3720QM +
min: 4749     avg: 4827     median: 4821 (50%)     max: 4916 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
100%
1 3840QM +
min: 20132     avg: 20135     median: 20135 (34%)     max: 20138 Points
94%
1 3720QM +
min: 14659     avg: 18498     median: 18879 (32%)     max: 19231 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
100%
1 3840QM +
min: 25111     avg: 25178     median: 25178 (29%)     max: 25245 Points
92%
1 3720QM +
min: 21405     avg: 23108     median: 23211 (27%)     max: 23615 Points
Cinebench R10 - Rendering Single CPUs 64Bit
100%
1 3840QM +
min: 6405     avg: 6478     median: 6478 (60%)     max: 6551 Points
94%
1 3720QM +
min: 5932     avg: 6091     median: 6097 (57%)     max: 6204 Points
wPrime 2.10 - 1024m *
100%
1 3840QM +
min: 245     avg: 246     median: 246.2 (3%)     max: 247.481 seconds
100%
1 3720QM +
min: 226.9     avg: 239     median: 235.2 (3%)     max: 258.421 seconds
wPrime 2.10 - 32m *
100%
1 3840QM +
min: 7.348     avg: 7.4     median: 7.4 (1%)     max: 7.441 seconds
100%
1 3720QM +
min: 7.64     avg: 7.8     median: 7.9 (2%)     max: 7.941 seconds
WinRAR - Result
100%
1 3840QM +
4712 KB/s (48%)
93%
1 3720QM +
min: 3125     avg: 4249     median: 4365 (45%)     max: 4613 KB/s
X264 HD Benchmark 4.0 - Pass 2
100%
1 3840QM +
min: 37.11     avg: 38.2     median: 38.2 (23%)     max: 39.23 fps
97%
1 3720QM +
min: 29.85     avg: 35.7     median: 37 (22%)     max: 37.67 fps
X264 HD Benchmark 4.0 - Pass 1
100%
1 3840QM +
min: 156.2     avg: 158     median: 157.8 (55%)     max: 159.37 fps
93%
1 3720QM +
min: 127.32     avg: 144     median: 146.7 (51%)     max: 150.05 fps
TrueCrypt - Serpent Mean 100MB
100%
1 3840QM +
min: 0.375     avg: 0.4     median: 0.4 (0%)     max: 0.376 GB/s
94%
1 3720QM +
min: 0.27     avg: 0.4     median: 0.4 (0%)     max: 0.513 GB/s
TrueCrypt - Twofish Mean 100MB
100%
1 3840QM +
min: 0.638     avg: 0.6     median: 0.6 (0%)     max: 0.642 GB/s
93%
1 3720QM +
min: 0.39     avg: 0.6     median: 0.6 (0%)     max: 0.606 GB/s
TrueCrypt - AES Mean 100MB
100%
1 3840QM +
3.6 GB/s (0%)
92%
1 3720QM +
min: 1.8     avg: 3.1     median: 3.3 (0%)     max: 3.4 GB/s
3DMark 06 - CPU - CPU Score
100%
1 3840QM +
min: 6946     avg: 6998     median: 6998 (47%)     max: 7050 Points
95%
1 3720QM +
min: 5981     avg: 6581     median: 6642 (44%)     max: 6696 Points
Super Pi mod 1.5 XS 1M - 1M *
100%
1 3840QM +
min: 9     avg: 9.4     median: 9.4 (2%)     max: 9.703 Seconds
100%
1 3720QM +
min: 10     avg: 10.3     median: 10.2 (2%)     max: 11 Seconds
Super Pi mod 1.5 XS 2M - 2M *
100%
1 3840QM +
min: 21.965     avg: 22     median: 22 (1%)     max: 22 Seconds
100%
1 3720QM +
min: 23     avg: 23.9     median: 24 (1%)     max: 24.305 Seconds
Super Pi Mod 1.5 XS 32M - 32M *
100%
1 3840QM +
541 Seconds (2%)
100%
1 3720QM +
min: 563     avg: 573     median: 571.7 (3%)     max: 594 Seconds
SiSoft Sandra Dhrystone (MIPS) - Dhrystone
100%
1 3840QM +
124100 MIPS (59%)
110%
1 3720QM +
min: 100430     avg: 124162     median: 136000 (65%)     max: 136390 MIPS
SiSoft Sandra Whetstone (MFLOPS) - Whetstone
100%
1 3840QM +
85000 MFLOPS (65%)
97%
1 3720QM +
min: 75250     avg: 82146     median: 82470 (63%)     max: 85440 MFLOPS
Windows 7 Experience Index - Processor
100%
1 3840QM +
7.7 points (99%)
99%
1 3720QM +
7.6 points (97%)
3DMark Vantage - P CPU no PhysX 1280x1024
100%
1 3840QM +
min: 24545     avg: 24741     median: 24740.5 (35%)     max: 24936 Points
94%
1 3720QM +
min: 12064     avg: 22380     median: 23290 (33%)     max: 23791 Points
3DMark 11 - Performance Physics 1280x720
100%
1 3840QM +
min: 7360     avg: 7787     median: 7786.5 (35%)     max: 8213 points
106%
1 3720QM +
min: 6455     avg: 8020     median: 8217 (37%)     max: 8505 points
3DMark - Ice Storm Standard Physics 1280x720
100%
1 3720QM +
min: 35881     avg: 39128     median: 39127.5 (25%)     max: 42374 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
100%
1 3720QM +
min: 39845     avg: 40576     median: 40575.5 (47%)     max: 41306 Points
3DMark - Cloud Gate Standard Physics 1280x720
100%
1 3720QM +
min: 5405     avg: 5873     median: 5921 (15%)     max: 6293 Points
3DMark - Fire Strike Physics 1920x1080
100%
1 3720QM +
min: 7455     avg: 8124     median: 8113 (25%)     max: 8803 Points
Geekbench 2 - 32 Bit - Stream
100%
1 3720QM +
8890 Points (72%)
Geekbench 2 - 32 Bit - Memory
100%
1 3720QM +
7573 Points (69%)
Geekbench 2 - 32 Bit - Floating Point
100%
1 3720QM +
12725 Points (25%)
Geekbench 2 - 32 Bit - Integer
100%
1 3720QM +
11403 Points (23%)
Geekbench 2 - 32 Bit - Total Score
100%
1 3720QM +
10848 Points (28%)
Geekbench 3 - 32 Bit Multi-Core Score
100%
1 3720QM +
14452 Points (26%)
Geekbench 3 - 32 Bit Single-Core Score
100%
1 3720QM +
3898 Points (80%)
Geekbench 3 - 64 Bit Multi-Core Score
100%
1 3720QM +
12555 Points (20%)
Geekbench 3 - 64 Bit Single-Core Score
100%
1 3720QM +
3289 Points (67%)
Geekbench 4.4 - 64 Bit Single-Core Score
100%
1 3720QM +
3739 Points (59%)
Geekbench 4.4 - 64 Bit Multi-Core Score
100%
1 3720QM +
12082 Points (21%)
Mozilla Kraken 1.1 - Total Score *
100%
1 3720QM +
1240 ms (2%)
Sunspider - 1.0 Total Score *
100%
1 3720QM +
93.2 ms (1%)
Octane V2 - Total Score
100%
1 3720QM +
32210 Points (61%)
Power Consumption - Prime95 V28,10 Stress Power Consumption (external Monitor) ultra *
100%
1 3720QM +
80.8 Watt (22%)
Power Consumption - Cinebench R15 Multi Power Consumption (external Monitor) ultra *
100%
1 3720QM +
64.8 Watt (17%)

Average Benchmarks Intel Core i7-3840QM → NAN% n=

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

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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Redaktion, 2017-09- 8 (Update: 2017-09-11)