Ryzen Z1 vs Atom N455

Primary details

Comparing Atom N455 and Ryzen Z1 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	649
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Atom	Phoenix (Zen 4, Ryzen 7040)
Power efficiency	no data	74.61
Architecture codename	Pinetrail (2009−2011)	Phoenix (Zen4) (2023)
Release date	1 June 2010 (14 years ago)	May 2023 (1 year ago)
Launch price (MSRP)	$64	no data

Detailed specifications

Atom N455 and Ryzen Z1 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	1 (Single-Core)	6 (Hexa-Core)
Threads	2	12
Base clock speed	1.66 GHz	3.2 GHz
Boost clock speed	1.67 GHz	4.9 GHz
Bus rate	533 MHz	no data
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	0 KB	16 MB (shared)
Chip lithography	45 nm	4 nm
Die size	66 mm2	137 mm2
Maximum core temperature	100 °C	100 °C
Number of transistors	123 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Atom N455 and Ryzen Z1 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA559	FP8
Power consumption (TDP)	6.5 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N455 and Ryzen Z1. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	no data
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
Precision Boost 2	no data	+

Security technologies

Atom N455 and Ryzen Z1 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom N455 and Ryzen Z1 are enumerated here.

AMD-V	-	+
VT-d	-	no data
VT-x	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom N455 and Ryzen Z1. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5
Maximum memory size	2 GB	no data
Max memory channels	1	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare

Intel GMA 3150

AMD Radeon 740M

Peripherals

Specifications and connection of peripherals supported by Atom N455 and Ryzen Z1.

PCIe version	no data	4.0
PCI Express lanes	no data	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Physical cores	1	6
Threads	2	12
Chip lithography	45 nm	4 nm
Power consumption (TDP)	6 Watt	15 Watt

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Should you still have questions on choice between Atom N455 and Ryzen Z1, ask them in Comments section, and we shall answer.

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