Intel Core i7-3840QM vs Intel Core i7-3720QM vs Intel Core i7-3635QM

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 i7-3635QM

► remove Intel 3635QM

The Intel Core i7-3635QM is a fast 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 2.4 GHz but can dynamically increase clock rates with Turbo Boost up to 3.2 GHz (for 4 active cores), 3.3 GHz (for 2 active cores) and 3.4 GHz (for 1 active core). In contrast to the 3630QM, the 3635QM has a different package (BGA) and a slightly higher GPU clock.

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 i7-3635QM is slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. As a result, overall performance is similar to the fastest Sandy Bridge model, the Core i7-2960XM.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1200 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3635QM 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 i7-3840QMIntel Core i7-3720QMIntel Core i7-3635QM
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 MHz2400 - 3400 MHz
256 KB256 KB256 KB
1 MB1 MB1 MB
8 MB6 MB6 MB
4 / 84 / 84 / 8
45 45 45
1400 1400 1400
22 22 22
160 mm2160 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, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 4000 (650 - 1300 MHz)Intel HD Graphics 4000 (650 - 1250 MHz)Intel HD Graphics 4000 (650 - 1200 MHz)
$568 U.S.$378 U.S.
FCBGA1224, FCPGA988BGA
Intel Core i7 3720QMIntel Core i7 3635QM

Cinebench R15 - CPU Multi 64Bit
610 Points (14%)
Cinebench R15 - CPU Single 64Bit
126 Points (58%)
Cinebench R11.5 - CPU Multi 64Bit
7.1 Points (16%)
min: 5     avg: 6.6     median: 6 (14%)     max: 6 Points
6.4 Points (15%)
Cinebench R11.5 - CPU Single 64Bit
1.6 Points (80%)
1.5 Points (73%)
1.4 Points (69%)
Cinebench R10 - Rendering Single 32Bit
min: 5137     avg: 5144.5     median: 5144 (53%)     max: 5152 Points
min: 4749     avg: 4826.5     median: 4821 (50%)     max: 4916 Points
min: 4600     avg: 4648.3     median: 4660 (48%)     max: 4685 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 20132     avg: 20135     median: 20135 (31%)     max: 20138 Points
min: 14659     avg: 18497.8     median: 18879 (29%)     max: 19231 Points
min: 17688     avg: 17854.7     median: 17865 (27%)     max: 18011 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 25111     avg: 25178     median: 25178 (33%)     max: 25245 Points
min: 21405     avg: 23107.9     median: 23211 (31%)     max: 23615 Points
min: 21471     avg: 21960.8     median: 22047 (29%)     max: 22277 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 6405     avg: 6478     median: 6478 (63%)     max: 6551 Points
min: 5932     avg: 6090.8     median: 6097 (59%)     max: 6204 Points
min: 5819     avg: 5884.5     median: 5891 (57%)     max: 5937 Points
wPrime 2.0x - 1024m *
min: 245     avg: 246.2     median: 246 (3%)     max: 247 seconds
min: 226     avg: 238.9     median: 235 (3%)     max: 258 seconds
min: 267     avg: 301.2     median: 276 (3%)     max: 359 seconds
wPrime 2.0x - 32m *
7.4 seconds (1%)
7.8 seconds (2%)
min: 8     avg: 9.6     median: 8 (2%)     max: 11 seconds
WinRAR - Result
4712 KB/s (55%)
min: 3125     avg: 4248.9     median: 4365 (51%)     max: 4613 KB/s
min: 3855     avg: 4199.5     median: 4199 (49%)     max: 4544 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 37     avg: 38.2     median: 38 (21%)     max: 39 fps
min: 29     avg: 35.7     median: 36 (20%)     max: 37 fps
35.4 fps (20%)
X264 HD Benchmark 4.0 - Pass 1
min: 156     avg: 157.8     median: 157 (58%)     max: 159 fps
min: 127     avg: 144.1     median: 146 (54%)     max: 150 fps
min: 134     avg: 138     median: 138 (51%)     max: 141 fps
TrueCrypt - Serpent Mean 100MB
0.4 GB/s (19%)
0.4 GB/s (18%)
0.2 GB/s (12%)
TrueCrypt - Twofish Mean 100MB
0.6 GB/s (21%)
0.6 GB/s (19%)
0.5 GB/s (17%)
TrueCrypt - AES Mean 100MB
3.6 GB/s (18%)
min: 1     avg: 3.1     median: 3 (15%)     max: 3 GB/s
3.1 GB/s (15%)
3DMark 06 - CPU
min: 6946     avg: 6998     median: 6998 (47%)     max: 7050 Points
min: 5981     avg: 6581     median: 6642 (44%)     max: 6696 Points
min: 6432     avg: 6483.3     median: 6492 (43%)     max: 6517 Points
Super Pi mod 1.5 XS 1M *
9.4 Seconds (2%)
min: 10     avg: 10.3     median: 10 (2%)     max: 11 Seconds
11.4 Seconds (2%)
Super Pi mod 1.5 XS 2M *
min: 21     avg: 22     median: 21 (1%)     max: 22 Seconds
min: 23     avg: 23.9     median: 24 (1%)     max: 24 Seconds
min: 25     avg: 26.1     median: 25 (1%)     max: 26 Seconds
Super Pi Mod 1.5 XS 32M *
541 Seconds (2%)
min: 563     avg: 573.4     median: 571 (3%)     max: 594 Seconds
min: 624     avg: 626.1     median: 625 (3%)     max: 629 Seconds
SiSoft Sandra Dhrystone (MIPS)
124100 MIPS (59%)
min: 100430     avg: 124162     median: 136000 (65%)     max: 136390 MIPS
min: 110140     avg: 118820     median: 118820 (56%)     max: 127500 MIPS
SiSoft Sandra Whetstone (MFLOPS)
85000 MFLOPS (65%)
min: 75250     avg: 82146     median: 82470 (63%)     max: 85440 MFLOPS
min: 80710     avg: 80855     median: 80855 (62%)     max: 81000 MFLOPS
Windows 7 Experience Index - Processor
7.7 points (110%)
7.6 points (109%)
3DMark Vantage - P CPU no PhysX 1280x1024
min: 24545     avg: 24740.5     median: 24740 (35%)     max: 24936 Points
min: 12064     avg: 22379.6     median: 23290 (33%)     max: 23791 Points
min: 20530     avg: 21870.5     median: 22225 (31%)     max: 22501 Points
3DMark 11 - Performance Physics 1280x720
min: 7360     avg: 7786.5     median: 7786 (40%)     max: 8213 points
min: 6455     avg: 8019.9     median: 8217 (42%)     max: 8505 points
min: 6023     avg: 6731.8     median: 7054 (36%)     max: 7235 points
3DMark - Ice Storm Standard Physics 1280x720
min: 35881     avg: 39127.5     median: 39127 (25%)     max: 42374 Points
min: 31200     avg: 33452.3     median: 34461 (22%)     max: 34696 Points
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 39845     avg: 40575.5     median: 40575 (47%)     max: 41306 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 5405     avg: 5873     median: 5921 (15%)     max: 6293 Points
min: 5633     avg: 5721.7     median: 5740 (15%)     max: 5792 Points
3DMark - Fire Strike Physics 1920x1080
min: 7455     avg: 8123.7     median: 8113 (25%)     max: 8803 Points
min: 7937     avg: 8037.3     median: 7965 (25%)     max: 8210 Points
Geekbench 2 - 32 Bit - Stream
8890 Points (72%)
8423 Points (68%)
Geekbench 2 - 32 Bit - Memory
7573 Points (69%)
7446 Points (68%)
Geekbench 2 - 32 Bit - Floating Point
12725 Points (22%)
11831 Points (20%)
Geekbench 2 - 32 Bit - Integer
11403 Points (20%)
10805 Points (19%)
Geekbench 2 - 32 Bit - Total Score
10848 Points (25%)
10254 Points (24%)
Geekbench 3 - 32 Bit Multi-Core Score
14452 Points (18%)
Geekbench 3 - 32 Bit Single-Core Score
3898 Points (80%)
Geekbench 3 - 64 Bit Multi-Core Score
12555 Points (33%)
Geekbench 3 - 64 Bit Single-Core Score
3289 Points (67%)
Geekbench 4.4 - 64 Bit Single-Core Score
3739 Points (59%)
Geekbench 4.4 - 64 Bit Multi-Core Score
12082 Points (21%)
Mozilla Kraken 1.1 - Total Score *
1240 ms (2%)
Sunspider - 1.0 Total Score *
93.2 ms (1%)
Octane V2 - Total Score
32210 Points (61%)
Power Consumption - Prime95 V28,10 Stress Power Consumption (external Monitor) ultra *
100%
1 3720QM +
80.8 Watt (17%)
Power Consumption - Cinebench R15 Multi Power Consumption (external Monitor) ultra *
100%
1 3720QM +
64.8 Watt (11%)

Average Benchmarks Intel Core i7-3840QM → 100%

Average Benchmarks Intel Core i7-3720QM → 99%

Average Benchmarks Intel Core i7-3635QM → 94%

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

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)