Intel Core i7-4940MX vs Intel Core i7-4600U vs Intel Core i7-4550U

Intel Core i7-4940MX

► remove from comparison Intel 4940MX

The Intel Core i7-4940MX is a high-end quad-core processor for laptops and successor of the i7-4930MX. It is based on the Haswell architecture and was launched in Q1/2014. 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 3.1 GHz but can dynamically increase clock rates with Turbo Boost up to 3.8 GHz (for 4 active cores), 3.9 GHz (for 2 active cores) and 4.0 GHz (for 1 active core). Furthermore, the Extreme CPUs offer an unlocked multiplicator for easy overclocking.

Architecture

Haswell is the successor to the Ivy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm and offer an optimized branch prediction as well as additional execution ports, increasing the performance per clock by about 5 - 10 percent. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.

Performance

Compared to the Core i7-4930MX, the 4940MX is clocked just 100 MHz higher and therefore only slightly faster. Overall, the performance is similar to the Desktop Core i7-4770K. Even extremly demanding software or multitasking will be handled easily.

Graphics

The integrated Intel HD Graphics 4600 offers 20 Execution Units (EUs) clocked at 400 MHz up to 1350 MHz with Turbo Boost, making it about 30 % faster than the HD 4000. This is slightly slower than the AMD Radeon HD 8650G, but similar to a dedicated GeForce GT 720M.

Power Consumption

The i7-4940MX is rated at a TDP of 57 W including graphics card, memory controller and VRMs.  Therefore, the CPU is only suited for laptops 17-inches or greater.

Intel Core i7-4600U

► remove from comparison Intel 4600U

The Intel Core i7-4600U is an ULV (ultra low voltage) dual-core processor for ultrabooks launched in Q3 2013. It is based on the Haswell architecture and is manufactured in 22nm. Due to Hyper-Threading, 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 3.3 GHz for 1 active core (2.9 GHz for 2 cores).

Haswell is the successor to the Ivy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm and offer an optimized branch prediction as well as additional execution ports, improving the performance per clock by almost 10 percent. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.

The performance of the Core i7-4600U is similar to the old and slightly higher clocked Core i7-3687U. However, when using new instruction sets such as AVX2, the performance can be significantly higher. Thus, the CPU has sufficient power for office and multimedia purposes as well as more demanding applications.

The integrated HD Graphics 4400 offers 20 Execution Units (EUs) clocked at 200 MHz up to 1100 MHz with Turbo Boost, making it somewhat faster than the HD Graphics 4000 at similar clock speeds. However, the HD 4400 is a bit slower than the HD 5000 found on other ULV models (e.g. i7-4650U).

The i7-4600U is rated at a TDP of 15 W including the graphics card, memory controller, VRMs and the integrated chipset. Therefore, the CPU is suited for small ultrabooks 11-inches or greater.

Intel Core i7-4550U

► remove from comparison Intel 4550U

The Intel Core i7-4550U is an ULV (ultra low voltage) dual-core processor for ultrabooks launched in Q2 2013. It is based on the Haswell architecture and is manufactured in 22nm. Due to Hyper-Threading, 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 1.5 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.0 GHz for 1 active core or 2.7 GHz for 2 active cores.

Haswell is the successor to the Ivy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm and offer an optimized branch prediction as well as additional execution ports, improving the performance per clock by almost 10 percent. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.

The performance of the Core i7-4550U is similar to the old and slightly higher clocked Core i7-3537U. However, when using new instruction sets such as AVX2 the performance can be significantly better. Thus, the CPU has sufficient power for office and multimedia purposes as well as more demanding applications.

The integrated HD Graphics 5000 offers 40 Execution Units (EUs) clocked at 200 - 1100 MHz with Turbo Boost, making it significantly faster than the HD Graphics 4000. As a result, the HD 5000 competes with dedicated lower mid-range graphics cards.

The i7-4550U is rated at a TDP of 15 W including the graphics card, memory controller, VRMs and the integrated chipset. Therefore, the CPU is suited for small ultrabooks 11-inches or greater.

Intel Core i7-4940MXIntel Core i7-4600UIntel Core i7-4550U
Intel Core i7Intel Core i7Intel Core i7
HaswellHaswellHaswell
Series: Core i7 Haswell
» Intel Core i7-4940MX3.1 - 4 GHz4 / 88 MB
Intel Core i7-4930MX3 - 3.9 GHz4 / 88 MB
Intel Core i7-4980HQ2.8 - 4 GHz4 / 86 MB
Intel Core i7-4910MQ2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-4900MQ2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-4960HQ2.6 - 3.8 GHz4 / 86 MB
Intel Core i7-4810MQ2.8 - 3.8 GHz4 / 86 MB
Intel Core i7-4870HQ2.5 - 3.7 GHz4 / 86 MB
Intel Core i7-4800MQ2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-4950HQ2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4860HQ2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4720HQ2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-4850HQ2.3 - 3.5 GHz4 / 86 MB
Intel Core i7-4710HQ2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4710MQ2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4770HQ2.2 - 3.4 GHz4 / 86 MB
Intel Core i7-4700HQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4700MQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4760HQ2.1 - 3.3 GHz4 / 86 MB
Intel Core i7-4722HQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4712HQ2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4712MQ2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4750HQ2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702HQ2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702MQ2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4610M3 - 3.7 GHz2 / 44 MB
Intel Core i7-4600M2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-4578U3 - 3.5 GHz2 / 44 MB
Intel Core i7-4558U2.8 - 3.3 GHz2 / 44 MB
Intel Core i7-4600U2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-4650U1.7 - 3.3 GHz2 / 44 MB
Intel Core i7-4510U2 - 3.1 GHz2 / 44 MB
Intel Core i7-4500U1.8 - 3 GHz2 / 44 MB
Intel Core i7-4550U1.5 - 3 GHz2 / 44 MB
Intel Core i7-4610Y1.7 - 2.9 GHz2 / 44 MB
Intel Core i7-4940MX3.1 - 4 GHz4 / 88 MB
Intel Core i7-4930MX3 - 3.9 GHz4 / 88 MB
Intel Core i7-4980HQ2.8 - 4 GHz4 / 86 MB
Intel Core i7-4910MQ2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-4900MQ2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-4960HQ2.6 - 3.8 GHz4 / 86 MB
Intel Core i7-4810MQ2.8 - 3.8 GHz4 / 86 MB
Intel Core i7-4870HQ2.5 - 3.7 GHz4 / 86 MB
Intel Core i7-4800MQ2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-4950HQ2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4860HQ2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4720HQ2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-4850HQ2.3 - 3.5 GHz4 / 86 MB
Intel Core i7-4710HQ2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4710MQ2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4770HQ2.2 - 3.4 GHz4 / 86 MB
Intel Core i7-4700HQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4700MQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4760HQ2.1 - 3.3 GHz4 / 86 MB
Intel Core i7-4722HQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4712HQ2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4712MQ2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4750HQ2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702HQ2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702MQ2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4610M3 - 3.7 GHz2 / 44 MB
Intel Core i7-4600M2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-4578U3 - 3.5 GHz2 / 44 MB
Intel Core i7-4558U2.8 - 3.3 GHz2 / 44 MB
» Intel Core i7-4600U2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-4650U1.7 - 3.3 GHz2 / 44 MB
Intel Core i7-4510U2 - 3.1 GHz2 / 44 MB
Intel Core i7-4500U1.8 - 3 GHz2 / 44 MB
Intel Core i7-4550U1.5 - 3 GHz2 / 44 MB
Intel Core i7-4610Y1.7 - 2.9 GHz2 / 44 MB
Intel Core i7-4940MX3.1 - 4 GHz4 / 88 MB
Intel Core i7-4930MX3 - 3.9 GHz4 / 88 MB
Intel Core i7-4980HQ2.8 - 4 GHz4 / 86 MB
Intel Core i7-4910MQ2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-4900MQ2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-4960HQ2.6 - 3.8 GHz4 / 86 MB
Intel Core i7-4810MQ2.8 - 3.8 GHz4 / 86 MB
Intel Core i7-4870HQ2.5 - 3.7 GHz4 / 86 MB
Intel Core i7-4800MQ2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-4950HQ2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4860HQ2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4720HQ2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-4850HQ2.3 - 3.5 GHz4 / 86 MB
Intel Core i7-4710HQ2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4710MQ2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4770HQ2.2 - 3.4 GHz4 / 86 MB
Intel Core i7-4700HQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4700MQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4760HQ2.1 - 3.3 GHz4 / 86 MB
Intel Core i7-4722HQ2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4712HQ2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4712MQ2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4750HQ2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702HQ2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702MQ2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4610M3 - 3.7 GHz2 / 44 MB
Intel Core i7-4600M2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-4578U3 - 3.5 GHz2 / 44 MB
Intel Core i7-4558U2.8 - 3.3 GHz2 / 44 MB
Intel Core i7-4600U2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-4650U1.7 - 3.3 GHz2 / 44 MB
Intel Core i7-4510U2 - 3.1 GHz2 / 44 MB
Intel Core i7-4500U1.8 - 3 GHz2 / 44 MB
» Intel Core i7-4550U1.5 - 3 GHz2 / 44 MB
Intel Core i7-4610Y1.7 - 2.9 GHz2 / 44 MB
3100 - 4000 MHz2100 - 3300 MHz1500 - 3000 MHz
256 KB128 KB128 KB
1 MB512 KB512 KB
8 MB4 MB4 MB
4 / 82 / 42 / 4
57 15 15
1400 1300 1300
22 22 22
177 mm2181 mm2181 mm2
100 °C100 °C100 °C
rPGAFCBGA1168
HD Graphics 4600 (400 - 1350 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, vPro, AES-NIHD Graphics 4400 (200 - 1100 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, vPro, AES-NIHD Graphics 5000 (200 - 1100 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
iGPUIntel HD Graphics 4600 (400 - 1350 MHz)Intel HD Graphics 4400 (200 - 1100 MHz)Intel HD Graphics 5000 (200 - 1100 MHz)
Architecturex86x86x86
$1096 U.S.$398 U.S.
Intel Core i7 4940MXIntel Core i7 4600UIntel Core i7 4550U

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
708 Points (16%)
min: 146     avg: 239     median: 248 (6%)     max: 273 Points
253 Points (6%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
157 Points (58%)
min: 85     avg: 118     median: 124 (46%)     max: 129 Points
118 Points (43%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
7.6 Points (15%)
min: 1.77     avg: 2.6     median: 2.7 (5%)     max: 2.95 Points
2.8 Points (6%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
1.8 Points (56%)
min: 1.01     avg: 1.4     median: 1.4 (45%)     max: 1.46 Points
1.3 Points (42%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
5853 (52%)
min: 3265     avg: 4527     median: 4668.5 (42%)     max: 4744
4395 (39%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
21022 (35%)
min: 5576     avg: 8374     median: 8444 (14%)     max: 9345
8715 (15%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
26547 Points (25%)
min: 7006     avg: 10839     median: 11221 (11%)     max: 12107 Points
11317 Points (11%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
7696 Points (58%)
min: 4245     avg: 5914     median: 6060.5 (46%)     max: 6336 Points
5835 Points (44%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 4940MX +
219 s (3%)
95%
1 4600U +
min: 579.7     avg: 620     median: 614 (7%)     max: 660.347 s
wPrime 2.10 - wPrime 2.0 32m *
100%
1 4940MX +
7 s (1%)
98%
1 4600U +
min: 15.9     avg: 16.9     median: 17.1 (3%)     max: 17.819 s
WinRAR - WinRAR 4.0
100%
1 4600U +
min: 2372     avg: 2498     median: 2493 (16%)     max: 2643
100%
1 4550U +
2482 (16%)
X264 HD Benchmark 4.0 - x264 Pass 2
42.9 fps (19%)
min: 14.3     avg: 15.8     median: 16.3 (7%)     max: 16.68 fps
15.9 fps (7%)
X264 HD Benchmark 4.0 - x264 Pass 1
167 fps (49%)
min: 77.5     avg: 90.4     median: 91.7 (27%)     max: 97.5 fps
90.8 fps (27%)
TrueCrypt - TrueCrypt Serpent
0.4 GB/s (15%)
min: 0.159     avg: 0.2     median: 0.2 (7%)     max: 0.16 GB/s
0.1 GB/s (6%)
TrueCrypt - TrueCrypt Twofish
0.7 GB/s (18%)
min: 0.272     avg: 0.3     median: 0.3 (8%)     max: 0.282 GB/s
0.3 GB/s (7%)
TrueCrypt - TrueCrypt AES
4.1 GB/s (15%)
min: 1.7     avg: 1.7     median: 1.7 (6%)     max: 1.8 GB/s
1.6 GB/s (6%)
3DMark 06 - CPU - 3DMark 06 - CPU
7678 Points (42%)
min: 2805     avg: 3303     median: 3223 (18%)     max: 3788 Points
3443 Points (19%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
9.3 s (2%)
min: 11.314     avg: 11.5     median: 11.5 (2%)     max: 12 s
12.3 s (3%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
20.7 s (1%)
min: 26.072     avg: 26.4     median: 26.3 (1%)     max: 27 s
28 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
491 s (2%)
min: 595.952     avg: 606     median: 602.1 (3%)     max: 624 s
633 s (3%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 4600U +
min: 24810     avg: 36025     median: 36025 (17%)     max: 47240 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 4600U +
min: 11500     avg: 24640     median: 24640 (19%)     max: 37780 MFLOPS
Windows 7 Experience Index - Win7 CPU
100%
1 4600U +
min: 5     avg: 6.1     median: 6.1 (78%)     max: 7.1 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 4600U +
min: 8308     avg: 9060     median: 8679 (10%)     max: 10541 Points
98%
1 4550U +
8506 Points (10%)
3DMark 11 - 3DM11 Performance Physics
9402 Points (39%)
min: 2930     avg: 3511     median: 3423.5 (14%)     max: 4329 Points
3447 Points (14%)
3DMark - 3DMark Ice Storm Physics
49770 Points (32%)
min: 14184     avg: 28863     median: 30173 (19%)     max: 35733 Points
26023 Points (17%)
3DMark - 3DMark Cloud Gate Physics
7082 Points (18%)
min: 2156     avg: 2700     median: 2600 (7%)     max: 3215 Points
2621 Points (7%)
3DMark - 3DMark Fire Strike Standard Physics
9870 Points (25%)
min: 3083     avg: 4234     median: 3893 (10%)     max: 9435 Points
3719 Points (9%)
Geekbench 2 - 32 Bit - Geekbench Stream
100%
1 4600U +
min: 5128     avg: 6656     median: 6656 (54%)     max: 8184 Points
123%
1 4550U +
8199 Points (66%)
Geekbench 2 - 32 Bit - Geekbench Memory
100%
1 4600U +
min: 5175     avg: 6261     median: 6260.5 (57%)     max: 7346 Points
115%
1 4550U +
7229 Points (66%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
100%
1 4600U +
min: 6941     avg: 7087     median: 7086.5 (14%)     max: 7232 Points
91%
1 4550U +
6476 Points (13%)
Geekbench 2 - 32 Bit - Geekbench Integer
100%
1 4600U +
min: 6216     avg: 6290     median: 6289.5 (13%)     max: 6363 Points
91%
1 4550U +
5744 Points (12%)
Geekbench 2 - 32 Bit - Geekbench Total Score
100%
1 4600U +
min: 6162     avg: 6604     median: 6603.5 (17%)     max: 7045 Points
99%
1 4550U +
6542 Points (17%)
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
100%
1 4600U +
6078 (11%)
Geekbench 3 - Geekbench 3 32 Bit Single-Core
100%
1 4600U +
3095 (64%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
100%
1 4550U +
2301 ms (4%)
Sunspider - Sunspider 1.0 Total Score *
100%
1 4600U +
161 ms (2%)
101%
1 4550U +
103 ms (1%)
Octane V2 - Octane V2 Total Score
100%
1 4600U +
23947 Points (38%)
59%
1 4550U +
14209 Points (23%)

Average Benchmarks Intel Core i7-4940MX → 100% n=21

Average Benchmarks Intel Core i7-4600U → 57% n=21

Average Benchmarks Intel Core i7-4550U → 56% n=21

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* 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)