Intel Core i7-3540M vs Intel Core i7-3615QM vs Intel Core i7-3940XM

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 i7-3615QM

► remove Intel 3615QM

The Intel Core i7-3615QM 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 2.3 GHz but can dynamically increase clock rates with Turbo Boost up to 3.1 GHz (for 4 active cores), 3.2 GHz (for 2 active cores) and 3.3 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 i7-3615QM is slightly above a similarly clocked Sandy Bridge processor due to the architectural improvements. As a result, overall performance is similar to 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 1200 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3615QM 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 i7-3940XM

► remove Intel 3940XM

The Intel Core i7-3940XM is the fastest quad-core processor for laptops (at the time of introduction in September 2012) an successor of the i7-3920XM. 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 3.0 GHz but can dynamically increase clock rates with Turbo Boost up to 3.7 GHz (for 4 active cores), 3.8 GHz (for 2 active cores) and 3.9 GHz (for 1 active core). Furthermore, the Extreme CPUs offer an unlocked multiplicator for easy overclocking.

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 i7-3940XM should be slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. Because of the higher clock speed, the former champion Core i7-3920XM should be outperformed by about 3%.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1350 MHz with Turbo Boost, making it the fastest variant.

The XM CPUs are rated at a TDP of 55 Watts including graphics card and memory controller and therefore 10 Watt higher than the other quad-core models.  Therefore, the CPU is well-suited for laptops 17-inches or greater.

Intel Core i7-3540MIntel Core i7-3615QMIntel Core i7-3940XM
Intel Core i7Intel Core i7Intel Core i7
Ivy BridgeIvy BridgeIvy Bridge
: Core i7 Ivy Bridge
Intel Core i7-3940XM3 - 3.9 GHz4 / 88 MB
Intel Core i7-3920XM2.9 - 3.8 GHz4 / 88 MB
Intel Core i7-3840QM2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-3820QM2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-3740QM2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-3720QM2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-3635QM2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3630QM2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3615QM2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3610QM2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3632QM2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-3612QM2.1 - 3.1 GHz4 / 86 MB
» Intel Core i7-3540M3 - 3.7 GHz2 / 44 MB
Intel Core i7-3520M2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-3687U2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-3667U2 - 3.2 GHz2 / 44 MB
Intel Core i7-3537U2 - 3.1 GHz2 / 44 MB
Intel Core i7-3517U1.9 - 3 GHz2 / 44 MB
Intel Core i7-3689Y1.5 - 2.6 GHz2 / 44 MB
Intel Core i7-3940XM3 - 3.9 GHz4 / 88 MB
Intel Core i7-3920XM2.9 - 3.8 GHz4 / 88 MB
Intel Core i7-3840QM2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-3820QM2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-3740QM2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-3720QM2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-3635QM2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3630QM2.4 - 3.4 GHz4 / 86 MB
» Intel Core i7-3615QM2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3610QM2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3632QM2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-3612QM2.1 - 3.1 GHz4 / 86 MB
Intel Core i7-3540M3 - 3.7 GHz2 / 44 MB
Intel Core i7-3520M2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-3687U2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-3667U2 - 3.2 GHz2 / 44 MB
Intel Core i7-3537U2 - 3.1 GHz2 / 44 MB
Intel Core i7-3517U1.9 - 3 GHz2 / 44 MB
Intel Core i7-3689Y1.5 - 2.6 GHz2 / 44 MB
» Intel Core i7-3940XM3 - 3.9 GHz4 / 88 MB
Intel Core i7-3920XM2.9 - 3.8 GHz4 / 88 MB
Intel Core i7-3840QM2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-3820QM2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-3740QM2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-3720QM2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-3635QM2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3630QM2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3615QM2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3610QM2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3632QM2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-3612QM2.1 - 3.1 GHz4 / 86 MB
Intel Core i7-3540M3 - 3.7 GHz2 / 44 MB
Intel Core i7-3520M2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-3687U2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-3667U2 - 3.2 GHz2 / 44 MB
Intel Core i7-3537U2 - 3.1 GHz2 / 44 MB
Intel Core i7-3517U1.9 - 3 GHz2 / 44 MB
Intel Core i7-3689Y1.5 - 2.6 GHz2 / 44 MB
3000 - 3700 MHz2300 - 3300 MHz3000 - 3900 MHz
128 KB256 KB256 KB
512 KB1 MB1 MB
4 MB6 MB8 MB
2 / 44 / 84 / 8
35 45 55
22 22 22
105 °C105 °C105 °C
BGA1023, PGA988FCBGA1224, FCPGA988FCPGA988
HD Graphics 4000 (650 - 1300 MHz), DDR3-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 4000 (650-1200MHz), 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 - 1200 MHz)Intel HD Graphics 4000 (650 - 1350 MHz)
Architecturex86x86x86
Intel Core i7 3540MIntel Core i7 3615QM
1400 1400
160 mm2160 mm2
$378 U.S.$1096 U.S.

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 3.41     avg: 3.5     median: 3.5 (7%)     max: 3.49 Points
min: 5.52     avg: 5.8     median: 5.5 (11%)     max: 6.26 Points
min: 7.45     avg: 7.5     median: 7.5 (15%)     max: 7.46 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.52     avg: 1.5     median: 1.5 (49%)     max: 1.54 Points
min: 1.32     avg: 1.3     median: 1.3 (43%)     max: 1.35 Points
min: 1.62     avg: 1.6     median: 1.6 (52%)     max: 1.63 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 5018     avg: 5030     median: 5029.5 (45%)     max: 5041
min: 4392     avg: 4436     median: 4436 (40%)     max: 4480
min: 5246     avg: 5255     median: 5252 (47%)     max: 5267
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 10628     avg: 10811     median: 10810.5 (18%)     max: 10993
min: 16907     avg: 16981     median: 16980.5 (29%)     max: 17054
min: 20438     avg: 20582     median: 20564 (35%)     max: 20744
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 13307     avg: 13435     median: 13434.5 (13%)     max: 13562 Points
min: 20725     avg: 21245     median: 21365 (20%)     max: 21646 Points
min: 25475     avg: 25600     median: 25624 (24%)     max: 25700 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 6326     avg: 6414     median: 6414 (48%)     max: 6502 Points
min: 5379     avg: 5576     median: 5618 (42%)     max: 5732 Points
min: 6506     avg: 6621     median: 6669 (50%)     max: 6687 Points
wPrime 2.10 - wPrime 2.0 1024m *
471 s (6%)
min: 248     avg: 262     median: 262.4 (3%)     max: 276.8 s
min: 208.8     avg: 219     median: 215.7 (3%)     max: 233 s
wPrime 2.10 - wPrime 2.0 32m *
14.9 s (3%)
min: 8.1     avg: 8.5     median: 8.5 (2%)     max: 8.8 s
min: 6.8     avg: 7     median: 7 (1%)     max: 7.169 s
WinRAR - WinRAR 4.0
2940 (19%)
min: 2965     avg: 3626     median: 3626 (23%)     max: 4287
min: 3467     avg: 4124     median: 4123.5 (26%)     max: 4780
X264 HD Benchmark 4.0 - x264 Pass 2
19.9 fps (9%)
34.4 fps (16%)
40.6 fps (18%)
X264 HD Benchmark 4.0 - x264 Pass 1
105 fps (31%)
138 fps (41%)
161 fps (47%)
TrueCrypt - TrueCrypt Serpent
0.2 GB/s (0%)
min: 0.316     avg: 0.3     median: 0.3 (0%)     max: 0.323 GB/s
min: 0.373     avg: 0.4     median: 0.4 (0%)     max: 0.386 GB/s
TrueCrypt - TrueCrypt Twofish
0.3 GB/s (0%)
min: 0.542     avg: 0.5     median: 0.5 (0%)     max: 0.55 GB/s
min: 0.64     avg: 0.7     median: 0.7 (1%)     max: 0.66 GB/s
TrueCrypt - TrueCrypt AES
1.7 GB/s (0%)
min: 2.9     avg: 3     median: 3 (0%)     max: 3.1 GB/s
min: 3.5     avg: 3.6     median: 3.7 (0%)     max: 3.7 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 4267     avg: 4320     median: 4319.5 (24%)     max: 4372 Points
min: 5453     avg: 5757     median: 5574 (31%)     max: 6244 Points
min: 7166     avg: 7182     median: 7176 (40%)     max: 7203 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
10.4 s (2%)
min: 11     avg: 11.1     median: 11.1 (2%)     max: 11.2 s
min: 9     avg: 9.2     median: 9 (2%)     max: 9.554 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
23.9 s (1%)
min: 25     avg: 25.4     median: 25.4 (1%)     max: 25.7 s
min: 21     avg: 21.1     median: 21 (1%)     max: 21.256 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
557 s (2%)
min: 616     avg: 623     median: 623.1 (3%)     max: 630.2 s
min: 518     avg: 526     median: 525.5 (2%)     max: 533 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 3940XM +
min: 147240     avg: 147620     median: 147620 (70%)     max: 148000 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 3940XM +
min: 89600     avg: 89630     median: 89630 (69%)     max: 89660 MFLOPS
Windows 7 Experience Index - Win7 CPU
7.3 Points (94%)
7.6 Points (97%)
7.7 Points (99%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
11749 Points (14%)
min: 18316     avg: 19453     median: 19047 (22%)     max: 20997 Points
min: 25344     avg: 25795     median: 25885 (30%)     max: 26157 Points
3DMark 11 - 3DM11 Performance Physics
min: 4391     avg: 4627     median: 4627 (20%)     max: 4863 Points
min: 6894     avg: 7283     median: 7391 (32%)     max: 7564 Points
min: 7611     avg: 8737     median: 9032 (39%)     max: 9568 Points
3DMark - 3DMark Ice Storm Physics
100%
1 3540M +
min: 40631     avg: 42023     median: 42022.5 (27%)     max: 43414 Points
115%
1 3940XM +
48410 Points (31%)
3DMark - 3DMark Cloud Gate Physics
100%
1 3540M +
min: 3424     avg: 3483     median: 3482.5 (9%)     max: 3541 Points
207%
1 3940XM +
7208 Points (18%)
3DMark - 3DMark Fire Strike Standard Physics
100%
1 3540M +
min: 4929     avg: 4966     median: 4966 (13%)     max: 5003 Points
199%
1 3940XM +
9863 Points (25%)

Average Benchmarks Intel Core i7-3540M → 100% n=21

Average Benchmarks Intel Core i7-3615QM → 131% n=21

Average Benchmarks Intel Core i7-3940XM → 154% n=21

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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)