Intel Core i5-4278U vs Apple A8

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CPU comparison with benchmarks


Intel Core i5-4278U CPU1 vs CPU2 Apple A8
Intel Core i5-4278U Apple A8

CPU comparison

Intel Core i5-4278U or Apple A8 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core i5-4278U has 2 cores with 4 threads and clocks with a maximum frequency of 3.10 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core i5-4278U was released in Q3/2014.

The Apple A8 has 2 cores with 2 threads and clocks with a maximum frequency of 1.50 GHz. The CPU supports up to 1 GB of memory in 1 memory channels. The Apple A8 was released in Q3/2014.
Intel Core i5 (331) Family Apple A series (22)
Intel Core i 4000U (26) CPU group Apple A8/A8X (2)
4 Generation 8
Haswell U Architecture A8
Mobile Segment Mobile
-- Predecessor Apple A7
-- Successor Apple A9

CPU Cores and Base Frequency

The Intel Core i5-4278U has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i5-4278U is 2.60 GHz (3.10 GHz) while the Apple A8 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the Apple A8 is at 1.50 GHz.

Intel Core i5-4278U Characteristic Apple A8
2 Cores 2
4 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.60 GHz Frequency 1.50 GHz
3.10 GHz Turbo Frequency (1 Core) --
-- Turbo Frequency (All Cores) --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i5-4278U Characteristic Apple A8
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core i5-4278U or Apple A8 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

Intel Iris Graphics 5100 GPU Apple A8
0.20 GHz GPU frequency 0.53 GHz
1.10 GHz GPU (Turbo) --
7.5 GPU Generation 5
22 nm Technology 20 nm
3 Max. displays 1
40 Compute units 16
320 Shader 128
No Hardware Raytracing No
No Frame Generation No
16 GB Max. GPU Memory 4 GB
11.1 DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Intel Iris Graphics 5100 GPU Apple A8
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC Decode
Decode Codec VC-1 Decode
Decode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core i5-4278U can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 25.6 GB/s. The Apple A8 supports up to 1 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 12.8 GB/s.

Intel Core i5-4278U Characteristic Apple A8
DDR3-1600 Memory LPDDR3-1600
16 GB Max. Memory 1 GB
2 (Dual Channel) Memory channels 1 (Single Channel)
25.6 GB/s Max. Bandwidth 12.8 GB/s
No ECC No
-- L2 Cache 1.00 MB
3.00 MB L3 Cache 4.00 MB
2.0 PCIe version --
12 PCIe lanes --
6.0 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Core i5-4278U is 28 W, while the Apple A8 has a TDP of 5 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i5-4278U Characteristic Apple A8
28 W TDP (PL1 / PBP) 5 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. --

Technical details

The Intel Core i5-4278U is manufactured in 22 nm and has 3.00 MB cache. The Apple A8 is manufactured in 20 nm and has a 5.00 MB cache.

Intel Core i5-4278U Characteristic Apple A8
22 nm Technology 20 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) Armv8-A (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions --
BGA 1168 Socket --
VT-x, VT-x EPT, VT-d Virtualization None
Yes AES-NI No
Windows 10, Linux Operating systems iOS
Q3/2014 Release date Q3/2014
-- Release price --
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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Core i5-4278U (100%)
Apple A8 (47%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Core i5-4278U (100%)
Apple A8 (42%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 3.10 GHz
684 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
324 (47%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 2.60 GHz
1478 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
607 (41%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 3.10 GHz
889 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
412 (46%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 2.60 GHz
1869 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
588 (31%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core i5-4278U Intel Core i5-4278U
Intel Iris Graphics 5100 @ 1.10 GHz
704 (100%)
Apple A8 Apple A8
Apple A8 @ 0.53 GHz
136 (19%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 2.60 GHz
2839 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
1532 (54%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 3.10 GHz
647 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 2.60 GHz
1688 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-4278U Intel Core i5-4278U
2C 4T @ 2.60 GHz
272 (100%)
Apple A8 Apple A8
2C 2T @ 1.50 GHz
0 (0%)

Devices using this processor

Intel Core i5-4278U Apple A8
Unknown Apple iPhone 6
Apple iPhone 6 Plus
Apple iPad Mini 4
Apple TV HD
Apple HomePod
Apple iPod touch (6. Gen)

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