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Intel Core i7-4578U

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.

SeriesIntel Core i7
CodenameHaswell
Series: Core i7 Haswell
Intel Core i7-4940MX compare3.1 - 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 i7-4578U3 - 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 i7-4550U compare1.5 - 3 GHz2 / 44 MB
Intel Core i7-4610Y compare1.7 - 2.9 GHz2 / 44 MB
Clock Rate3000 - 3500 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache4 MB
Number of Cores / Threads2 / 4
Power Consumption (TDP = Thermal Design Power)28 Watt
Transistor Count1300 Million
Manufacturing Technology22 nm
Die Size181 mm2
Max. Temperature100 °C
SocketFCBGA
FeaturesIris Graphics 5100 (200 - 1200 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel Iris Graphics 5100 (200 - 1200 MHz)
64 Bit64 Bit support
Architecturex86
Starting Price$426 U.S.
Announcement Date07/21/2014
Product Link (external)Intel Core i7 4578U

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* Smaller numbers mean a higher performance

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v1.16

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Other CPUs of the series Core i7

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» Intel Core i7-8706G
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» Intel Core i7-8705G
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» Intel Core i7-4940MX
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» Intel Core i7-6920HQ
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» Intel Core i7-5950HQ
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» Intel Core i7-4930MX
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» Intel Core i7-6970HQ
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» Intel Core i7-6870HQ
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» Intel Core i7-4980HQ
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» Intel Core i7-4910MQ
   4x 2.9 GHz - 3.9 GHz
» Intel Core i7-5850HQ
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» Intel Core i7-3940XM
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» Intel Core i7-5700HQ
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» Intel Core i7-5750HQ
   4x 2.5 GHz - 3.4 GHz
» Intel Core i7-6820HK
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6820HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6770HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4900MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4960HQ
   4x 2.6 GHz - 3.8 GHz
» Intel Core i7-6700HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4810MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4870HQ
   4x 2.5 GHz - 3.7 GHz
» Intel Core i7-8665U
   4x 1.9 GHz - 4.8 GHz
» Intel Core i7-3920XM
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-4800MQ
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-4950HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4860HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4720HQ
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-3840QM
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4850HQ
   4x 2.3 GHz - 3.5 GHz
» Intel Core i7-4710HQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-4710MQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-8565U
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» Intel Core i7-4770HQ
   4x 2.2 GHz - 3.4 GHz
» Intel Core i7-3820QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3740QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3720QM
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-4700HQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4700MQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4760HQ
   4x 2.1 GHz - 3.3 GHz
» Intel Core i7-4722HQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-2960XM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-4712HQ
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-4712MQ
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» Intel Core i7-4750HQ
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» Intel Core i7-3630QM
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» Intel Core i7-4702HQ
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» Intel Core i7-2860QM
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» Intel Core i7-2920XM
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» Intel Core i7-3615QM
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» Intel Core i7-3610QM
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» Intel Core i7-3632QM
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» Intel Core i7-2760QM
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» Intel Core i7-2820QM
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» Intel Core i7-3612QM
   4x 2.1 GHz - 3.1 GHz
» Intel Core i7-2720QM
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» Intel Core i7-2675QM
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» Intel Core i7-2670QM
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» Intel Core i7-6567U
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» Intel Core i7-2635QM
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» Intel Core i7-920XM
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» Intel Core i7-4558U
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» Intel Core i7-6600U
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» Intel Core i7-5600U
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» Intel Core i7-5650U
   2x 2.2 GHz - 3.2 GHz
» Intel Core i7-2640M
   2x 2.8 GHz - 3.5 GHz
» Intel Core i7-5500U
   2x 2.4 GHz - 3 GHz
» Intel Core i7-5550U
   2x 2 GHz - 3 GHz
» Intel Core i7-840QM
   4x 1.86 GHz - 3.2 GHz
» Intel Core i7-2620M
   2x 2.7 GHz - 3.4 GHz
» Intel Core i7-4600U
   2x 2.1 GHz - 3.3 GHz
» Intel Core i7-4650U
   2x 1.7 GHz - 3.3 GHz
» Intel Core i7-3687U
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» Intel Core i7-4510U
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» Intel Core i7-640M
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» Intel Core i7-820QM
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» Intel Core i7-8500Y
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» Intel Core i7-3667U
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» Intel Core i7-4500U
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» Intel Core i7-4550U
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» Intel Core i7-740QM
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» Intel Core i7-3537U
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» Intel Core i7-620M
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» Intel Core i7-680UM
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» Intel Core i7-660UM
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» Intel Core i7-640UM
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» Intel Core i7-620UM
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Surrounding CPUs

+ Intel Core i7-4600M
   2x 2.9 GHz - 3.6 GHz
+ Intel Core i5-4340M
   2x 2.9 GHz - 3.6 GHz
+ Intel Core i5-5287U
   2x 2.9 GHz - 3.3 GHz
+ Intel Core i5-7260U
   2x 2.2 GHz - 3.4 GHz
+ Intel Core i5-6267U
   2x 2.9 GHz - 3.3 GHz
» Intel Core i7-4578U
   2x 3 GHz - 3.5 GHz
- Intel Core i5-4210H
   2x 2.9 GHz - 3.5 GHz
- Intel Core i7-920XM
   4x 2 GHz - 3.2 GHz
- Intel Core i5-4330M
   2x 2.8 GHz - 3.5 GHz
- Intel Core i7-3540M
   2x 3 GHz - 3.7 GHz
- Intel Core i5-4200H
   2x 2.8 GHz - 3.4 GHz
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Intel Core i7 > Intel Core i7 4578U Notebook Processor
Klaus Hinum, 2014-07-30 (Update: 2014-07-30)