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Intel Core i7-4940MX vs Intel Core i7-4578U vs Intel Core i7-4558U

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 i7-4578U

► remove from comparison Intel 4578U

The Intel Core i7-4578U is a LV (low voltage) dual-core processor for large ultrabooks launched in Q3/2014. 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 3.0 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.5 GHz.

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, improving the performance per clock by almost 10 percent. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.

Performance

The performance of the Core i7-4578U is slightly above the older and somewhat higher clocked Core i7-3540M. 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.

Graphics

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 (e.g. GeForce GT 720M).

Power Consumption

The i7-4578U 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, well-cooled ultrabooks.

Intel Core i7-4558U

► remove from comparison 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.

ModelIntel Core i7-4940MXIntel Core i7-4578UIntel Core i7-4558U
SeriesIntel Core i7Intel Core i7Intel Core i7
CodenameHaswellHaswellHaswell
Series: Core i7 Haswell
Intel Core i7-4940MX « 3.1 - 4 GHz4 / 8 cores8 MB L3
Intel Core i7-4930MX3 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-4980HQ2.8 - 4 GHz4 / 8 cores6 MB L3
Intel Core i7-4910MQ2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-4900MQ2.8 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-4960HQ2.6 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i7-4810MQ2.8 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i7-4870HQ2.5 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-4800MQ2.7 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-4950HQ2.4 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4860HQ2.4 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4720HQ2.6 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4850HQ2.3 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4710HQ2.5 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4710MQ2.5 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4770HQ2.2 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4700HQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4700MQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4760HQ2.1 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4722HQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4712HQ2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4712MQ2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4750HQ2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4702HQ2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4702MQ2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4610M3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-4600M2.9 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-4578U3 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-4558U2.8 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4600U2.1 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4650U1.7 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4510U2 - 3.1 GHz2 / 4 cores4 MB L3
Intel Core i7-4500U1.8 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-4550U1.5 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-4610Y1.7 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-4940MX3.1 - 4 GHz4 / 8 cores8 MB L3
Intel Core i7-4930MX3 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-4980HQ2.8 - 4 GHz4 / 8 cores6 MB L3
Intel Core i7-4910MQ2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-4900MQ2.8 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-4960HQ2.6 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i7-4810MQ2.8 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i7-4870HQ2.5 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-4800MQ2.7 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-4950HQ2.4 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4860HQ2.4 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4720HQ2.6 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4850HQ2.3 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4710HQ2.5 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4710MQ2.5 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4770HQ2.2 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4700HQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4700MQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4760HQ2.1 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4722HQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4712HQ2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4712MQ2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4750HQ2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4702HQ2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4702MQ2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4610M3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-4600M2.9 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-4578U « 3 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-4558U2.8 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4600U2.1 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4650U1.7 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4510U2 - 3.1 GHz2 / 4 cores4 MB L3
Intel Core i7-4500U1.8 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-4550U1.5 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-4610Y1.7 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-4940MX3.1 - 4 GHz4 / 8 cores8 MB L3
Intel Core i7-4930MX3 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-4980HQ2.8 - 4 GHz4 / 8 cores6 MB L3
Intel Core i7-4910MQ2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-4900MQ2.8 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-4960HQ2.6 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i7-4810MQ2.8 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i7-4870HQ2.5 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-4800MQ2.7 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-4950HQ2.4 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4860HQ2.4 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4720HQ2.6 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-4850HQ2.3 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4710HQ2.5 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4710MQ2.5 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-4770HQ2.2 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4700HQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4700MQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4760HQ2.1 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4722HQ2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-4712HQ2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4712MQ2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-4750HQ2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4702HQ2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4702MQ2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-4610M3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-4600M2.9 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-4578U3 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-4558U « 2.8 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4600U2.1 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4650U1.7 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-4510U2 - 3.1 GHz2 / 4 cores4 MB L3
Intel Core i7-4500U1.8 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-4550U1.5 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-4610Y1.7 - 2.9 GHz2 / 4 cores4 MB L3
Clock3100 - 4000 MHz3000 - 3500 MHz2800 - 3300 MHz
L1 Cache256 KB128 KB128 KB
L2 Cache1 MB512 KB512 KB
L3 Cache8 MB4 MB4 MB
Cores / Threads4 / 82 / 42 / 4
TDP57 Watt28 Watt28 Watt
Transistors1400 Million1300 Million1300 Million
Technology22 nm22 nm22 nm
Die Size177 mm2181 mm2181 mm2
max. Temp.100 °C100 °C100 °C
SocketrPGAFCBGAFCBGA
FeaturesHD 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-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)Intel Iris Graphics 5100 (200 - 1200 MHz)
Architecturex86x86x86
$1096 U.S.$426 U.S.$454 U.S.
Announced
Manufacturerark.intel.comark.intel.comark.intel.com

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
100%
1 4940MX +
708 Points (4%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
100%
1 4940MX +
157 Points (47%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 4940MX +
7.6 Points (10%)
46%
1 4558U +
3.5 Points (5%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 4940MX +
1.8 Points (44%)
82%
1 4558U +
1.5 Points (36%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 4940MX +
5853 Points (35%)
82%
1 4558U +
4793 Points (29%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 4940MX +
21022 Points (15%)
49%
1 4558U +
10305 Points (7%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 4940MX +
26547 Points (18%)
52%
1 4558U +
13800 Points (10%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 4940MX +
7696 Points (9%)
82%
1 4558U +
6339 Points (8%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 4940MX +
218.6 s (3%)
96%
1 4558U +
511 s (6%)
wPrime 2.10 - wPrime 2.0 32m *
100%
1 4940MX +
7 s (1%)
98%
1 4558U +
16.3 s (3%)
WinRAR - WinRAR 4.0
100%
1 4558U +
2671 Points (4%)
X264 HD Benchmark 4.0 - x264 Pass 2
100%
1 4940MX +
42.9 fps (15%)
47%
1 4558U +
20.4 fps (7%)
X264 HD Benchmark 4.0 - x264 Pass 1
100%
1 4940MX +
167.4 fps (39%)
64%
1 4558U +
107.2 fps (25%)
TrueCrypt - TrueCrypt Serpent
100%
1 4940MX +
0.4 GB/s (0%)
47%
1 4558U +
0.2 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
100%
1 4940MX +
0.7 GB/s (11%)
45%
1 4558U +
0.3 GB/s (5%)
TrueCrypt - TrueCrypt AES
100%
1 4940MX +
4.1 GB/s (11%)
46%
1 4558U +
1.9 GB/s (5%)
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 4940MX +
7678 Points (16%)
56%
1 4558U +
4264 Points (9%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
1 4940MX +
9.3 s (2%)
100%
1 4558U +
11.2 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 4940MX +
20.7 s (1%)
100%
1 4558U +
25.7 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 4940MX +
491.5 s (2%)
100%
1 4558U +
585 s (3%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 4558U +
72000 MIPS (34%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 4558U +
41240 MFLOPS (32%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 4558U +
11049 Points (10%)
3DMark 11 - 3DM11 Performance Physics
100%
1 4940MX +
9402 Points (25%)
43%
1 4558U +
4037 Points (11%)
3DMark - 3DMark Ice Storm Physics
100%
1 4940MX +
49770 Points (40%)
67%
1 4558U +
33266 Points (27%)
3DMark - 3DMark Cloud Gate Physics
100%
1 4940MX +
7082 Points (18%)
42%
1 4558U +
2998 Points (8%)
3DMark - 3DMark Fire Strike Standard Physics
100%
1 4940MX +
9870 Points (18%)
46%
1 4558U +
4549 Points (8%)
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
100%
1 4558U +
6519 Points (12%)
Geekbench 3 - Geekbench 3 32 Bit Single-Core
100%
1 4558U +
3120 Points (61%)
Geekbench 2 - 32 Bit - Geekbench Stream
100%
1 4558U +
8576 Points (69%)
Geekbench 2 - 32 Bit - Geekbench Memory
100%
1 4558U +
7610 Points (69%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
100%
1 4558U +
7423 Points (15%)
Geekbench 2 - 32 Bit - Geekbench Integer
100%
1 4558U +
6637 Points (13%)
Geekbench 2 - 32 Bit - Geekbench Total Score
100%
1 4558U +
7300 Points (19%)

Average Benchmarks Intel Core i7-4940MX → 0% n=

Average Benchmarks Intel Core i7-4558U → 0% n=

- 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

v1.26
log 29. 14:22:13

#0 checking url part for id 4995 +0s ... 0s

#1 checking url part for id 6224 +0s ... 0s

#2 checking url part for id 4254 +0s ... 0s

#3 not redirecting to Ajax server +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Thu, 28 Mar 2024 05:35:32 +0100 +0.001s ... 0.001s

#5 composed specs +0.046s ... 0.048s

#6 did output specs +0s ... 0.048s

#7 getting avg benchmarks for device 4995 +0.002s ... 0.05s

#8 got single benchmarks 4995 +0.01s ... 0.06s

#9 getting avg benchmarks for device 6224 +0.002s ... 0.062s

#10 got single benchmarks 6224 +0s ... 0.062s

#11 getting avg benchmarks for device 4254 +0.002s ... 0.065s

#12 got single benchmarks 4254 +0.011s ... 0.076s

#13 got avg benchmarks for devices +0s ... 0.076s

#14 min, max, avg, median took s +0.138s ... 0.214s

#15 return log +0s ... 0.214s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)