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Intel Core i5-4278U

Intel 4278U

The Intel Core i5-4278U 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 2.6 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.1 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

Due to these architectural improvements, the performance is slightly above a similarly clocked Ivy Bridge CPU. Therefore, the Core i5-4278U is almost as fast as the older 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.

Graphics

The integrated Iris Graphics 5100 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 Iris Graphics competes with dedicated lower mid-range graphics cards (e.g. GeForce GT 720M). However, even fast dual-channel memory limits the performance.

Power Consumption

The i5-4278U 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 i5
CodenameHaswell
Series: Core i5 Haswell
Intel Core i5-4340M compare2900 - 3600 MHz2 / 43 MB
Intel Core i5-4210H compare2900 - 3500 MHz2 / 43 MB
Intel Core i5-4330M compare2800 - 3500 MHz2 / 43 MB
Intel Core i5-4200H compare2800 - 3400 MHz2 / 43 MB
Intel Core i5-4308U compare2800 - 3300 MHz2 / 43 MB
Intel Core i5-4310M compare2700 - 3400 MHz2 / 43 MB
Intel Core i5-4400E compare2700 - 3300 MHz2 / 43 MB
Intel Core i5-4300M compare2600 - 3300 MHz2 / 43 MB
Intel Core i5-4210M compare2600 - 3200 MHz2 / 43 MB
Intel Core i5-4288U compare2600 - 3100 MHz2 / 43 MB
» Intel Core i5-4278U2600 - 3100 MHz2 / 43 MB
Intel Core i5-4200M compare2500 - 3100 MHz2 / 43 MB
Intel Core i5-4258U compare2400 - 2900 MHz2 / 43 MB
Intel Core i5-4310U compare2000 - 3000 MHz2 / 43 MB
Intel Core i5-4360U compare1500 - 3000 MHz2 / 43 MB
Intel Core i5-4300U compare1900 - 2900 MHz2 / 43 MB
Intel Core i5-4350U compare1400 - 2900 MHz2 / 43 MB
Intel Core i5-4210U compare1700 - 2700 MHz2 / 43 MB
Intel Core i5-4260U compare1400 - 2700 MHz2 / 43 MB
Intel Core i5-4402E compare1600 - 2700 MHz2 / 43 MB
Intel Core i5-4200U compare1600 - 2600 MHz2 / 43 MB
Intel Core i5-4250U compare1300 - 2600 MHz2 / 43 MB
Intel Core i5-4300Y compare1600 - 2300 MHz2 / 43 MB
Intel Core i5-4302Y compare1600 - 2300 MHz2 / 43 MB
Intel Core i5-4202Y compare1600 - 2000 MHz2 / 43 MB
Intel Core i5-4220Y compare1600 - 2000 MHz2 / 43 MB
Intel Core i5-4210Y compare1500 - 1900 MHz2 / 43 MB
Intel Core i5-4200Y compare1400 - 1900 MHz2 / 43 MB
Clock Rate2600 - 3100 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache3 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 - 1100 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel Iris Graphics 5100 (200 - 1100 MHz)
64 Bit64 Bit support
Starting Price$315 U.S.
Announcement Date07/21/2014
Product Link (external)Intel Core i5 4278U

Benchmarks

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* Smaller numbers mean a higher performance

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Reviews for the Intel Core i5 4278U processor

Apple MacBook Pro Retina 13 inch 2014-07 (Intel Iris Graphics 5100, 13.3")
» Apple MacBook Pro Retina 13 inch 2014-07 - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Core i5

» Intel Core i5-8305G
   4x 2.8 GHz - 3.8 GHz
» Intel Core i5-8365U
   4x 1.6 GHz - 4.1 GHz
» Intel Core i5-8265U
   4x 1.6 GHz - 3.9 GHz
» Intel Core i5-6440HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i5-6350HQ
   4x 2.3 GHz - 3.2 GHz
» Intel Core i5-6300HQ
   4x 2.3 GHz - 3.2 GHz
» Intel Core i5-5350H
   2x 3 GHz - 3.5 GHz
» Intel Core i5-6287U
   2x 3.1 GHz - 3.5 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 i5-6267U
   2x 2.9 GHz - 3.3 GHz
» Intel Core i5-4210H
   2x 2.9 GHz - 3.5 GHz
» Intel Core i5-4330M
   2x 2.8 GHz - 3.5 GHz
» Intel Core i5-4200H
   2x 2.8 GHz - 3.4 GHz
» Intel Core i5-5257U
   2x 2.7 GHz - 3.1 GHz
» Intel Core i5-4308U
   2x 2.8 GHz - 3.3 GHz
» Intel Core i5-4310M
   2x 2.7 GHz - 3.4 GHz
» Intel Core i5-4400E
   2x 2.7 GHz - 3.3 GHz
» Intel Core i5-4300M
   2x 2.6 GHz - 3.3 GHz
» Intel Core i5-6360U
   2x 2 GHz - 3.1 GHz
» Intel Core i5-4210M
   2x 2.6 GHz - 3.2 GHz
» Intel Core i5-6300U
   2x 2.4 GHz - 3 GHz
» Intel Core i5-4288U
   2x 2.6 GHz - 3.1 GHz
» Intel Core i5-4278U
   2x 2.6 GHz - 3.1 GHz
» Intel Core i5-3380M
   2x 2.9 GHz - 3.6 GHz
» Intel Core i5-3360M
   2x 2.8 GHz - 3.5 GHz
» Intel Core i5-4200M
   2x 2.5 GHz - 3.1 GHz
» Intel Core i5-3340M
   2x 2.7 GHz - 3.4 GHz
» Intel Core i5-6260U
   2x 1.8 GHz - 2.9 GHz
» Intel Core i5-3320M
   2x 2.6 GHz - 3.3 GHz
» Intel Core i5-4258U
   2x 2.4 GHz - 2.9 GHz
» Intel Core i5-3230M
   2x 2.6 GHz - 3.2 GHz
» Intel Core i5-6198DU
   2x 2.3 GHz - 2.8 GHz
» Intel Core i5-6200U
   2x 2.3 GHz - 2.8 GHz
» Intel Core i5-5300U
   2x 2.3 GHz - 2.9 GHz
» Intel Core i5-5350U
   2x 1.8 GHz - 2.9 GHz
» Intel Core i5-3210M
   2x 2.5 GHz - 3.1 GHz
» Intel Core i5-2540M
   2x 2.6 GHz - 3.3 GHz
» Intel Core i5-8210Y
   2x 1.6 GHz - 3.6 GHz
» Intel Core i5-8200Y
   2x 1.3 GHz - 3.9 GHz
» Intel Core i5-4310U
   2x 2 GHz - 3 GHz
» Intel Core i5-4360U
   2x 1.5 GHz - 3 GHz
» Intel Core i5-5200U
   2x 2.2 GHz - 2.7 GHz
» Intel Core i5-5250U
   2x 1.6 GHz - 2.7 GHz
» Intel Core i5-4300U
   2x 1.9 GHz - 2.9 GHz
» Intel Core i5-4350U
   2x 1.4 GHz - 2.9 GHz
» Intel Core i5-2520M
   2x 2.5 GHz - 3.2 GHz
» Intel Core i5-2450M
   2x 2.5 GHz - 3.1 GHz
» Intel Core i5-580M
   2x 2.67 GHz - 3.33 GHz
» Intel Core i5-2435M
   2x 2.4 GHz - 3 GHz
» Intel Core i5-2430M
   2x 2.4 GHz - 3 GHz
» Intel Core i5-2415M
   2x 2.3 GHz - 2.9 GHz
» Intel Core i5-2410M
   2x 2.3 GHz - 2.9 GHz
» Intel Core i5-3437U
   2x 1.9 GHz - 2.9 GHz
» Intel Core i5-560M
   2x 2.67 GHz - 3.2 GHz
» Intel Core i5-4210U
   2x 1.7 GHz - 2.7 GHz
» Intel Core i5-4260U
   2x 1.4 GHz - 2.7 GHz
» Intel Core i5-3427U
   2x 1.8 GHz - 2.8 GHz
» Intel Core i5-4402E
   2x 1.6 GHz - 2.7 GHz
» Intel Core i5-4200U
   2x 1.6 GHz - 2.6 GHz
» Intel Core i5-4250U
   2x 1.3 GHz - 2.6 GHz
» Intel Core i5-480M
   2x 2.67 GHz - 2.93 GHz
» Intel Core i5-540M
   2x 2.53 GHz - 3.07 GHz
» Intel Core i5-460M
   2x 2.53 GHz - 2.8 GHz
» Intel Core i5-3337U
   2x 1.8 GHz - 2.7 GHz
» Intel Core i5-520M
   2x 2.4 GHz - 2.93 GHz
» Intel Core i5-450M
   2x 2.4 GHz - 2.66 GHz
» Intel Core i5-3317U
   2x 1.7 GHz - 2.6 GHz
» Intel Core i5-430M
   2x 2.26 GHz - 2.53 GHz
» Intel Core i5-4300Y
   2x 1.6 GHz - 2.3 GHz
» Intel Core i5-4302Y
   2x 1.6 GHz - 2.3 GHz
» Intel Core i5-2557M
   2x 1.7 GHz - 2.7 GHz
» Intel Core i5-3439Y
   2x 1.5 GHz - 2.3 GHz
» Intel Core i5-4202Y
   2x 1.6 GHz - 2 GHz
» Intel Core i5-4220Y
   2x 1.6 GHz - 2 GHz
» Intel Core i5-4210Y
   2x 1.5 GHz - 1.9 GHz
» Intel Core i5-2467M
   2x 1.6 GHz - 2.3 GHz
» Intel Core i5-3339Y
   2x 1.5 GHz - 2 GHz
» Intel Core i5-4200Y
   2x 1.4 GHz - 1.9 GHz
» Intel Core i5-2537M
   2x 1.4 GHz - 2.3 GHz
» Intel Core i5-560UM
   2x 1.33 GHz - 2.13 GHz
» Intel Core i5-470UM
   2x 1.33 GHz - 1.87 GHz
» Intel Core i5-540UM
   2x 1.2 GHz - 2 GHz
» Intel Core i5-520UM
   2x 1.06 GHz - 1.87 GHz
» Intel Core i5-430UM
   2x 1.2 GHz - 1.73 GHz

Surrounding CPUs

+ Intel Core i7-5650U
   2x 2.2 GHz - 3.2 GHz
+ Intel Core i5-6360U
   2x 2 GHz - 3.1 GHz
+ Intel Core i5-4210M
   2x 2.6 GHz - 3.2 GHz
+ Intel Core i5-6300U
   2x 2.4 GHz - 3 GHz
+ Intel Core i5-4288U
   2x 2.6 GHz - 3.1 GHz
» Intel Core i5-4278U
   2x 2.6 GHz - 3.1 GHz
- Intel Core i5-3380M
   2x 2.9 GHz - 3.6 GHz
- Intel Core i5-3360M
   2x 2.8 GHz - 3.5 GHz
- Intel Core i5-4200M
   2x 2.5 GHz - 3.1 GHz
- Intel Core i5-3340M
   2x 2.7 GHz - 3.4 GHz
- Intel Core i7-2640M
   2x 2.8 GHz - 3.5 GHz
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Intel Core i5 4278U Notebook Processor
Klaus Hinum (Update: 2014-07-30)