Intel Core i7-3667U vs Intel Core i7-3840QM vs Intel Core i7-3540M

Intel Core i7-3667U

► remove

The Intel Core i7-3667U is the fastest ULV-processor for laptops based on the Ivy Bridge architecture at the time of introduction in Q2 2012. 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 2.0 GHz but can dynamically increase clock rates with Turbo Boost up to 3.0 GHz (for 2 active cores) and 3.2 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 i7-3667U is slightly above a similarly clocked Sandy Bridge processor due to the architectural improvements. Therefore, and because of the higher clock speed, the Core i7-2677M is easily outperformed by 10 to 15%.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 350 MHz up to 1150 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 i7-3840QM

► 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 i7-3540M

► remove Intel 3540M

The Intel Core i7-3540M is the fastest dual-core 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 3.0 GHz but can dynamically increase clock rates with Turbo Boost up to 3.5 GHz (for 2 active cores) and 3.7 GHz (for 1 active core). As its Sandy-Bridge-based predecessor Core i7-2640M, 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 i7-3540M is slightly above a similarly clocked Sandy Bridge processor due to the architectural improvements. As a result, overall performance is about 5 - 10 % above the old i7-2640M.

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 fastest variants.

Just like most other Ivy Bridge dual-cores, the i7-3540M is rated at a TDP of 35 W. Therefore, even smaller laptops can use the Core i7.

Intel Core i7-3667UIntel Core i7-3840QMIntel Core i7-3540M
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
2000 - 3200 MHz2800 - 3800 MHz3000 - 3700 MHz
128 KB256 KB128 KB
512 KB1 MB512 KB
4 MB8 MB4 MB
2 / 44 / 82 / 4
17 45 35
22 22 22
105 °C105 °C105 °C
BGA1023BGA1023, PGA988
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 BitHD Graphics 4000, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 4000 (650 - 1300 MHz), DDR3-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 4000 (350 - 1150 MHz)Intel HD Graphics 4000 (650 - 1300 MHz)Intel HD Graphics 4000 (650 - 1300 MHz)
$346 U.S.$568 U.S.
Intel Core i7 3667UIntel Core i7 3540M
1400
160 mm2

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 2.55     avg: 2.8     median: 2.9 (7%)     max: 2.96 Points
min: 7     avg: 7.1     median: 7.1 (16%)     max: 7.15 Points
min: 3.41     avg: 3.5     median: 3.5 (8%)     max: 3.49 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.3     avg: 1.3     median: 1.3 (52%)     max: 1.33 Points
min: 1.58     avg: 1.6     median: 1.6 (62%)     max: 1.59 Points
min: 1.52     avg: 1.5     median: 1.5 (60%)     max: 1.54 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 3975     avg: 4215     median: 4215 (43%)     max: 4455
min: 5137     avg: 5145     median: 5144.5 (53%)     max: 5152
min: 5018     avg: 5030     median: 5029.5 (52%)     max: 5041
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 8290     avg: 8810     median: 8809.5 (15%)     max: 9329
min: 20132     avg: 20135     median: 20135 (34%)     max: 20138
min: 10628     avg: 10811     median: 10810.5 (18%)     max: 10993
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 10253     avg: 11057     median: 11294.5 (13%)     max: 11387 Points
min: 25111     avg: 25178     median: 25178 (29%)     max: 25245 Points
min: 13307     avg: 13435     median: 13434.5 (16%)     max: 13562 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 5363     avg: 5524     median: 5563 (49%)     max: 5607 Points
min: 6405     avg: 6478     median: 6478 (57%)     max: 6551 Points
min: 6326     avg: 6414     median: 6414 (56%)     max: 6502 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 529     avg: 591     median: 569.7 (7%)     max: 674.715 s
min: 245     avg: 246     median: 246.2 (3%)     max: 247.481 s
471 s (6%)
wPrime 2.10 - wPrime 2.0 32m *
min: 16.27     avg: 17.4     median: 17.8 (4%)     max: 18.096 s
min: 7.348     avg: 7.4     median: 7.4 (1%)     max: 7.441 s
14.9 s (3%)
WinRAR - WinRAR 4.0
min: 2413     avg: 2474     median: 2474 (25%)     max: 2535
4712 (48%)
2940 (30%)
X264 HD Benchmark 4.0 - x264 Pass 2
min: 14.54     avg: 15.4     median: 15.4 (9%)     max: 16.32 fps
min: 37.11     avg: 38.2     median: 38.2 (23%)     max: 39.23 fps
19.9 fps (12%)
X264 HD Benchmark 4.0 - x264 Pass 1
min: 86.29     avg: 87     median: 87 (30%)     max: 87.72 fps
min: 156.2     avg: 158     median: 157.8 (55%)     max: 159.37 fps
105 fps (36%)
TrueCrypt - TrueCrypt Serpent
0.2 GB/s (0%)
min: 0.375     avg: 0.4     median: 0.4 (0%)     max: 0.376 GB/s
0.2 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
min: 0.259     avg: 0.3     median: 0.3 (0%)     max: 0.265 GB/s
min: 0.638     avg: 0.6     median: 0.6 (0%)     max: 0.642 GB/s
0.3 GB/s (0%)
TrueCrypt - TrueCrypt AES
min: 1.4     avg: 1.5     median: 1.5 (0%)     max: 1.5 GB/s
3.6 GB/s (0%)
1.7 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 3393     avg: 3567     median: 3594.5 (24%)     max: 3685 Points
min: 6946     avg: 6998     median: 6998 (47%)     max: 7050 Points
min: 4267     avg: 4320     median: 4319.5 (29%)     max: 4372 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 11     avg: 11.4     median: 11.4 (2%)     max: 12 s
min: 9     avg: 9.4     median: 9.4 (2%)     max: 9.703 s
10.4 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 27     avg: 27.3     median: 27.2 (1%)     max: 28 s
min: 21.965     avg: 22     median: 22 (1%)     max: 22 s
23.9 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 640     avg: 648     median: 647.7 (3%)     max: 655 s
541 s (2%)
557 s (2%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
52000 MIPS (25%)
124100 MIPS (59%)
52000 MIPS (25%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
36570 MFLOPS (28%)
85000 MFLOPS (65%)
36570 MFLOPS (28%)
Windows 7 Experience Index - Win7 CPU
7.1 Points (91%)
7.7 Points (99%)
7.3 Points (94%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 8295     avg: 9039     median: 9222 (13%)     max: 9600 Points
min: 24545     avg: 24741     median: 24740.5 (35%)     max: 24936 Points
11749 Points (16%)
3DMark 11 - 3DM11 Performance Physics
min: 2618     avg: 3129     median: 3231 (15%)     max: 3436 Points
min: 7360     avg: 7787     median: 7786.5 (35%)     max: 8213 Points
min: 4391     avg: 4627     median: 4627 (21%)     max: 4863 Points
Sunspider - Sunspider 0.9.1 Total Score *
128 ms (1%)
128 ms (1%)
128 ms (1%)

Average Benchmarks Intel Core i7-3667U → 100% n=24

Average Benchmarks Intel Core i7-3840QM → 179% n=24

Average Benchmarks Intel Core i7-3540M → 113% n=24

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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)