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

Intel Core i7-4940MX

► remove 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 i7-4550U

► remove 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 i7-4550U
Intel Core i7Intel Core i7
HaswellHaswell
: Core i7 Haswell
» Intel Core i7-4940MX3.1 - 4 GHz4 / 88 MB
Intel Core i7-4930MX compare3 - 3.9 GHz4 / 88 MB
Intel Core i7-4980HQ compare2.8 - 4 GHz4 / 86 MB
Intel Core i7-4910MQ compare2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-4900MQ compare2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-4960HQ compare2.6 - 3.8 GHz4 / 86 MB
Intel Core i7-4810MQ compare2.8 - 3.8 GHz4 / 86 MB
Intel Core i7-4870HQ compare2.5 - 3.7 GHz4 / 86 MB
Intel Core i7-4800MQ compare2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-4950HQ compare2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4860HQ compare2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4720HQ compare2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-4850HQ compare2.3 - 3.5 GHz4 / 86 MB
Intel Core i7-4710HQ compare2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4710MQ compare2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4770HQ compare2.2 - 3.4 GHz4 / 86 MB
Intel Core i7-4700HQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4700MQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4760HQ compare2.1 - 3.3 GHz4 / 86 MB
Intel Core i7-4722HQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4712HQ compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4712MQ compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4750HQ compare2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702HQ compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702MQ compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4610M compare3 - 3.7 GHz2 / 44 MB
Intel Core i7-4600M compare2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-4578U compare3 - 3.5 GHz2 / 44 MB
Intel Core i7-4558U compare2.8 - 3.3 GHz2 / 44 MB
Intel Core i7-4600U compare2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-4650U compare1.7 - 3.3 GHz2 / 44 MB
Intel Core i7-4510U compare2 - 3.1 GHz2 / 44 MB
Intel Core i7-4500U compare1.8 - 3 GHz2 / 44 MB
Intel Core i7-4550U1.5 - 3 GHz2 / 44 MB
Intel Core i7-4610Y compare1.7 - 2.9 GHz2 / 44 MB
Intel Core i7-4940MX3.1 - 4 GHz4 / 88 MB
Intel Core i7-4930MX compare3 - 3.9 GHz4 / 88 MB
Intel Core i7-4980HQ compare2.8 - 4 GHz4 / 86 MB
Intel Core i7-4910MQ compare2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-4900MQ compare2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-4960HQ compare2.6 - 3.8 GHz4 / 86 MB
Intel Core i7-4810MQ compare2.8 - 3.8 GHz4 / 86 MB
Intel Core i7-4870HQ compare2.5 - 3.7 GHz4 / 86 MB
Intel Core i7-4800MQ compare2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-4950HQ compare2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4860HQ compare2.4 - 3.6 GHz4 / 86 MB
Intel Core i7-4720HQ compare2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-4850HQ compare2.3 - 3.5 GHz4 / 86 MB
Intel Core i7-4710HQ compare2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4710MQ compare2.5 - 3.5 GHz4 / 86 MB
Intel Core i7-4770HQ compare2.2 - 3.4 GHz4 / 86 MB
Intel Core i7-4700HQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4700MQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4760HQ compare2.1 - 3.3 GHz4 / 86 MB
Intel Core i7-4722HQ compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-4712HQ compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4712MQ compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-4750HQ compare2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702HQ compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4702MQ compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-4610M compare3 - 3.7 GHz2 / 44 MB
Intel Core i7-4600M compare2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-4578U compare3 - 3.5 GHz2 / 44 MB
Intel Core i7-4558U compare2.8 - 3.3 GHz2 / 44 MB
Intel Core i7-4600U compare2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-4650U compare1.7 - 3.3 GHz2 / 44 MB
Intel Core i7-4510U compare2 - 3.1 GHz2 / 44 MB
Intel Core i7-4500U compare1.8 - 3 GHz2 / 44 MB
» Intel Core i7-4550U1.5 - 3 GHz2 / 44 MB
Intel Core i7-4610Y compare1.7 - 2.9 GHz2 / 44 MB
3100 - 4000 MHz1500 - 3000 MHz
256 KB128 KB
1 MB512 KB
8 MB4 MB
4 / 82 / 4
57 15
1400 1300
22 22
177 mm2181 mm2
100 °C100 °C
rPGA
HD Graphics 4600 (400 - 1350 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 5000 (200 - 1100 MHz)
Architecturex86x86
$1096 U.S.
Intel Core i7 4940MXIntel Core i7 4550U

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
708 Points (16%)
253 Points (6%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
157 Points (58%)
118 Points (43%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
7.6 Points (15%)
2.8 Points (6%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
1.8 Points (56%)
1.3 Points (42%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
5853 (52%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
21022 (35%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
26547 Points (25%)
11317 Points (11%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
7696 Points (58%)
5835 Points (44%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 4940MX +
219 s (3%)
wPrime 2.10 - wPrime 2.0 32m *
100%
1 4940MX +
7 s (1%)
WinRAR - WinRAR 4.0
100%
1 4550U +
2482 (16%)
X264 HD Benchmark 4.0 - x264 Pass 2
42.9 fps (19%)
15.9 fps (7%)
X264 HD Benchmark 4.0 - x264 Pass 1
167 fps (49%)
90.8 fps (27%)
TrueCrypt - TrueCrypt Serpent
0.4 GB/s (0%)
0.1 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
0.7 GB/s (1%)
0.3 GB/s (0%)
TrueCrypt - TrueCrypt AES
4.1 GB/s (0%)
1.6 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
7678 Points (42%)
3443 Points (19%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
9.3 s (2%)
12.3 s (3%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
20.7 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
491 s (2%)
633 s (3%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 4550U +
8506 Points (10%)
3DMark 11 - 3DM11 Performance Physics
9402 Points (39%)
3447 Points (14%)
3DMark - 3DMark Ice Storm Physics
49770 Points (32%)
26023 Points (17%)
3DMark - 3DMark Cloud Gate Physics
7082 Points (18%)
2621 Points (7%)
3DMark - 3DMark Fire Strike Standard Physics
9870 Points (25%)
3719 Points (9%)
Geekbench 2 - 32 Bit - Geekbench Stream
100%
1 4550U +
8199 Points (66%)
Geekbench 2 - 32 Bit - Geekbench Memory
100%
1 4550U +
7229 Points (66%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
100%
1 4550U +
6476 Points (13%)
Geekbench 2 - 32 Bit - Geekbench Integer
100%
1 4550U +
5744 Points (12%)
Geekbench 2 - 32 Bit - Geekbench Total Score
100%
1 4550U +
6542 Points (17%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
100%
1 4550U +
2301 ms (4%)
Sunspider - Sunspider 1.0 Total Score *
100%
1 4550U +
103 ms (1%)
Octane V2 - Octane V2 Total Score
100%
1 4550U +
14209 Points (23%)

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

Average Benchmarks Intel Core i7-4550U → 56% 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)