Intel Core i7-4940MX vs Intel Core i7-4558U

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 i7-4558U

► remove Intel 4558U

The Intel Core i7-4558U is a LV (low voltage) dual-core processor for large 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 2.8 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.3 GHz for 1 active core or 3.2 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 i7-4558U is slightly above the older and somewhat higher clocked Core i7-3520M. 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 Iris Graphics 5100 offers 40 Execution Units (EUs) clocked at 200 - 1200 MHz with Turbo Boost, making it significantly faster than the HD Graphics 4000. As a result, the Iris Graphics competes with dedicated lower mid-range graphics cards.

The i7-4558U is rated at a TDP of 28 W including the graphics card, memory controller, VRMs and the integrated chipset. Therefore, the CPU is suited for larger ultrabooks 14-inches or greater.

Intel Core i7-4940MXIntel Core i7-4558U
Intel Core i7Intel Core i7
HaswellHaswell
: Core i7 Haswell
» Intel Core i7-4940MX3100 - 4000 MHz4 / 88 MB
Intel Core i7-4930MX (compare)3000 - 3900 MHz4 / 88 MB
Intel Core i7-4980HQ (compare)2800 - 4000 MHz4 / 86 MB
Intel Core i7-4910MQ (compare)2900 - 3900 MHz4 / 88 MB
Intel Core i7-4900MQ (compare)2800 - 3800 MHz4 / 88 MB
Intel Core i7-4960HQ (compare)2600 - 3800 MHz4 / 86 MB
Intel Core i7-4810MQ (compare)2800 - 3800 MHz4 / 86 MB
Intel Core i7-4870HQ (compare)2500 - 3700 MHz4 / 86 MB
Intel Core i7-4800MQ (compare)2700 - 3700 MHz4 / 86 MB
Intel Core i7-4950HQ (compare)2400 - 3600 MHz4 / 86 MB
Intel Core i7-4860HQ (compare)2400 - 3600 MHz4 / 86 MB
Intel Core i7-4720HQ (compare)2600 - 3600 MHz4 / 86 MB
Intel Core i7-4850HQ (compare)2300 - 3500 MHz4 / 86 MB
Intel Core i7-4710HQ (compare)2500 - 3500 MHz4 / 86 MB
Intel Core i7-4710MQ (compare)2500 - 3500 MHz4 / 86 MB
Intel Core i7-4770HQ (compare)2200 - 3400 MHz4 / 86 MB
Intel Core i7-4700HQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4700MQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4760HQ (compare)2100 - 3300 MHz4 / 86 MB
Intel Core i7-4722HQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4712HQ (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-4712MQ (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-4750HQ (compare)2000 - 3200 MHz4 / 86 MB
Intel Core i7-4702HQ (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-4702MQ (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-4610M (compare)3000 - 3700 MHz2 / 44 MB
Intel Core i7-4600M (compare)2900 - 3600 MHz2 / 44 MB
Intel Core i7-4578U (compare)3000 - 3500 MHz2 / 44 MB
Intel Core i7-4558U2800 - 3300 MHz2 / 44 MB
Intel Core i7-4600U (compare)2100 - 3300 MHz2 / 44 MB
Intel Core i7-4650U (compare)1700 - 3300 MHz2 / 44 MB
Intel Core i7-4510U (compare)2000 - 3100 MHz2 / 44 MB
Intel Core i7-4500U (compare)1800 - 3000 MHz2 / 44 MB
Intel Core i7-4550U (compare)1500 - 3000 MHz2 / 44 MB
Intel Core i7-4610Y (compare)1700 - 2900 MHz2 / 44 MB
Intel Core i7-4940MX3100 - 4000 MHz4 / 88 MB
Intel Core i7-4930MX (compare)3000 - 3900 MHz4 / 88 MB
Intel Core i7-4980HQ (compare)2800 - 4000 MHz4 / 86 MB
Intel Core i7-4910MQ (compare)2900 - 3900 MHz4 / 88 MB
Intel Core i7-4900MQ (compare)2800 - 3800 MHz4 / 88 MB
Intel Core i7-4960HQ (compare)2600 - 3800 MHz4 / 86 MB
Intel Core i7-4810MQ (compare)2800 - 3800 MHz4 / 86 MB
Intel Core i7-4870HQ (compare)2500 - 3700 MHz4 / 86 MB
Intel Core i7-4800MQ (compare)2700 - 3700 MHz4 / 86 MB
Intel Core i7-4950HQ (compare)2400 - 3600 MHz4 / 86 MB
Intel Core i7-4860HQ (compare)2400 - 3600 MHz4 / 86 MB
Intel Core i7-4720HQ (compare)2600 - 3600 MHz4 / 86 MB
Intel Core i7-4850HQ (compare)2300 - 3500 MHz4 / 86 MB
Intel Core i7-4710HQ (compare)2500 - 3500 MHz4 / 86 MB
Intel Core i7-4710MQ (compare)2500 - 3500 MHz4 / 86 MB
Intel Core i7-4770HQ (compare)2200 - 3400 MHz4 / 86 MB
Intel Core i7-4700HQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4700MQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4760HQ (compare)2100 - 3300 MHz4 / 86 MB
Intel Core i7-4722HQ (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-4712HQ (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-4712MQ (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-4750HQ (compare)2000 - 3200 MHz4 / 86 MB
Intel Core i7-4702HQ (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-4702MQ (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-4610M (compare)3000 - 3700 MHz2 / 44 MB
Intel Core i7-4600M (compare)2900 - 3600 MHz2 / 44 MB
Intel Core i7-4578U (compare)3000 - 3500 MHz2 / 44 MB
» Intel Core i7-4558U2800 - 3300 MHz2 / 44 MB
Intel Core i7-4600U (compare)2100 - 3300 MHz2 / 44 MB
Intel Core i7-4650U (compare)1700 - 3300 MHz2 / 44 MB
Intel Core i7-4510U (compare)2000 - 3100 MHz2 / 44 MB
Intel Core i7-4500U (compare)1800 - 3000 MHz2 / 44 MB
Intel Core i7-4550U (compare)1500 - 3000 MHz2 / 44 MB
Intel Core i7-4610Y (compare)1700 - 2900 MHz2 / 44 MB
3100 - 4000 MHz2800 - 3300 MHz
256 KB128 KB
1 MB512 KB
8 MB4 MB
4 / 82 / 4
57 28
1400 1300
22 22
177 mm2181 mm2
100 °C100 °C
rPGAFCBGA
HD Graphics 4600 (400 - 1350 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, vPro, AES-NIIris Graphics 5100 (200 - 1200 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
iGPUIntel HD Graphics 4600 (400 - 1350 MHz)Intel Iris Graphics 5100 (200 - 1200 MHz)
$1096 U.S.$454 U.S.
Intel Core i7 4940MXIntel Core i7 4558U

Cinebench R15 - CPU Multi 64Bit
708 Points (16%)
Cinebench R15 - CPU Single 64Bit
157 Points (72%)
Cinebench R11.5 - CPU Multi 64Bit
7.6 Points (17%)
3.5 Points (8%)
Cinebench R11.5 - CPU Single 64Bit
1.8 Points (89%)
1.5 Points (73%)
Cinebench R10 - Rendering Single 32Bit
5853 Points (60%)
4793 Points (49%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
21022 Points (32%)
10305 Points (16%)
Cinebench R10 - Rendering Multiple CPUs 64Bit
26547 Points (35%)
13800 Points (18%)
Cinebench R10 - Rendering Single CPUs 64Bit
7696 Points (74%)
6339 Points (61%)
wPrime 2.0x - 1024m *
218.6 seconds (3%)
510.7 seconds (6%)
wPrime 2.0x - 32m *
7 seconds (1%)
16.3 seconds (3%)
WinRAR - Result
2671 KB/s (31%)
X264 HD Benchmark 4.0 - Pass 2
42.9 fps (1%)
20.4 fps (1%)
X264 HD Benchmark 4.0 - Pass 1
167.4 fps (62%)
107.2 fps (40%)
TrueCrypt - Serpent Mean 100MB
0.4 GB/s (19%)
0.2 GB/s (9%)
TrueCrypt - Twofish Mean 100MB
0.7 GB/s (22%)
0.3 GB/s (10%)
TrueCrypt - AES Mean 100MB
4.1 GB/s (21%)
1.9 GB/s (10%)
3DMark 06 - CPU
7678 Points (51%)
4264 Points (29%)
Super Pi mod 1.5 XS 1M *
9.3 Seconds (2%)
11.2 Seconds (2%)
Super Pi mod 1.5 XS 2M *
20.7 Seconds (1%)
25.7 Seconds (1%)
Super Pi Mod 1.5 XS 32M *
491.5 Seconds (2%)
584.7 Seconds (3%)
SiSoft Sandra Dhrystone (MIPS)
72000 MIPS (34%)
SiSoft Sandra Whetstone (MFLOPS)
41240 MFLOPS (32%)
3DMark Vantage - P CPU no PhysX 1280x1024
11049 Points (15%)
3DMark 11 - Performance Physics 1280x720
9402 points (48%)
4037 points (21%)
3DMark - Ice Storm Standard Physics 1280x720
49770 Points (32%)
33266 Points (21%)
3DMark - Cloud Gate Standard Physics 1280x720
7082 Points (18%)
2998 Points (8%)
3DMark - Fire Strike Physics 1920x1080
9870 Points (30%)
4549 Points (14%)
Geekbench 2 - 32 Bit - Stream
8576 Points (69%)
Geekbench 2 - 32 Bit - Memory
7610 Points (69%)
Geekbench 2 - 32 Bit - Floating Point
7423 Points (13%)
Geekbench 2 - 32 Bit - Integer
6637 Points (11%)
Geekbench 2 - 32 Bit - Total Score
7300 Points (17%)
Geekbench 3 - 32 Bit Multi-Core Score
6519 Points (8%)
Geekbench 3 - 32 Bit Single-Core Score
3120 Points (64%)

Average Benchmarks Intel Core i7-4940MX → 100%

Average Benchmarks Intel Core i7-4558U → 80%

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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)