Intel Atom x5-Z8550 VS Intel Core i7-4650U

Comparison of video cards Intel Atom x5-Z8550 vs Intel Core i7-4650U in benchmarks and specifications.

Differences Specifications Benchmarks

Differences

Top features of Intel Atom x5-Z8550

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More number of cores

4 2

2 times more threads
Performance per watt

2 W 15 W

About 7.5 0.97 times less performance per watt

Top features of Intel Core i7-4650U

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Higher clock speed

1.70 GHz 1.44 GHz

Around 15% better clock speed
Higher turbo clock speed

3.30 GHz 2.40 GHz

Around 27 % better overclocked clock speed

Specifications

Complete list of technical specifications

Intel Atom x5-Z8550 Intel Core i7-4650U

CPU generation and family

Let's find out which one of Intel Atom x5-Z8550 and Intel Core i7-4650U is of a more recent generation, and what segment it belongs to.

Specification	Value
Name	Intel Atom x5-Z8550 Intel Core i7-4650U
Segment	Mobile Mobile
Family	Intel Atom Intel Core i7
Generation	1 4
CPU group	Intel Atom x3/x5/x7 Intel Core i 4000U

CPU Cores and Base Frequency

In this block we are going to compare Intel Atom x5-Z8550 vs Intel Core i7-4650U by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

Specification	Value
Frequency	1.44 GHz 1.70 GHz
CPU Cores	4 2
Turbo (1 Core)	2.40 GHz 3.30 GHz
CPU Threads	4 4
Hyperthreading	No Yes
Overclocking	No No
Core architecture	normal normal

Internal Graphics

Common specifications for integrated graphics cards in Intel Atom x5-Z8550 and Intel Core i7-4650U along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

Specification	Value
GPU name	Intel HD Graphics 400 Intel HD Graphics 5000
GPU frequency	0.20 GHz 0.20 GHz
GPU (Turbo)	0.60 GHz 1.10 GHz
Execution units	12 40
Shader	96 320
Max. GPU Memory	8 GB 2 GB
Max. displays	3 3
Generation	8 7.5
DirectX Version	12 11.1
Technology	14 nm 22 nm
Release date	Q1/2015 Q2/2013

Hardware codec support

Let's compare the support of video codecs between Intel Atom x5-Z8550 and Intel Core i7-4650U. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

Specification	Value
h265 / HEVC (8 bit)	No No
h265 / HEVC (10 bit)	No No
h264	Decode / Encode Decode / Encode
VP9	No No
VP8	Decode No
AV1	No No
AVC	Decode / Encode Decode / Encode
VC-1	Decode Decode
JPEG	Decode Decode

Memory & PCIe

To choose the best model between Intel Atom x5-Z8550 and Intel Core i7-4650U you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

Specification	Value
Memory type	DDR3L-1600 SO-DIMM DDR3L-1600 SO-DIMM
ECC	No No
Memory channels	2 2
PCIe version	2.0 2.0
PCIe lanes	2 12

Encryption

AES-NI encryption support for CPUs Intel Atom x5-Z8550 and Intel Core i7-4650U.

Specification	Value
AES-NI	Yes Yes

Thermal Management

Let's find out what TDP value would be better for Intel Atom x5-Z8550 or Intel Core i7-4650U? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

Specification	Value
TDP (PL1)	2 W 15 W

Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for Intel Atom x5-Z8550 and Intel Core i7-4650U CPUs along with a list of ISA extensions.

Specification	Value
Instruction set (ISA)	x86-64 (64 bit) x86-64 (64 bit)
Virtualization	VT-x, VT-x EPT VT-x, VT-x EPT, VT-d
ISA extensions	SSE4.1, SSE4.2 SSE4.1, SSE4.2, AVX2
L3-Cache	2.00 MB 4.00 MB
Architecture	Cherry Trail Haswell U
Technology	14 nm 22 nm
Socket	BGA 138 BGA 1168
Release date	Q1/2016 Q3/2013