Ryzen 5 3400G vs Atom N455

Primary details

Comparing Atom N455 and Ryzen 5 3400G processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	1108
Place by popularity	not in top-100	92
Market segment	Laptop	Desktop processor
Series	Intel Atom	AMD Ryzen 5
Power efficiency	no data	8.49
Architecture codename	Pinetrail (2009−2011)	Picasso (2019−2022)
Release date	1 June 2010 (14 years ago)	12 June 2019 (5 years ago)
Launch price (MSRP)	$64	no data

Detailed specifications

Atom N455 and Ryzen 5 3400G 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)	4 (Quad-Core)
Threads	2	8
Base clock speed	1.66 GHz	3.7 GHz
Boost clock speed	1.67 GHz	4.2 GHz
Bus type	no data	PCIe 3.0
Bus rate	533 MHz	no data
Multiplier	no data	37
L1 cache	64 KB (per core)	384 KB
L2 cache	512K (per core)	2 MB
L3 cache	0 KB	4 MB (shared)
Chip lithography	45 nm	12 nm
Die size	66 mm2	210 mm2
Maximum core temperature	100 °C	no data
Number of transistors	123 million	4940 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Atom N455 and Ryzen 5 3400G 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 (Uniprocessor)
Socket	FCBGA559	AM4
Power consumption (TDP)	6.5 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N455 and Ryzen 5 3400G. 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

Security technologies

Atom N455 and Ryzen 5 3400G 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 5 3400G 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 5 3400G. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-2933
Maximum memory size	2 GB	64 GB
Max memory channels	1	2
Maximum memory bandwidth	no data	46.933 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare

Intel GMA 3150

AMD Radeon RX Vega 11

Peripherals

Specifications and connection of peripherals supported by Atom N455 and Ryzen 5 3400G.

PCIe version	no data	3.0
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.

---

---

Pros & cons summary

---

Recency	1 June 2010	12 June 2019
Physical cores	1	4
Threads	2	8
Chip lithography	45 nm	12 nm
Power consumption (TDP)	6 Watt	65 Watt

---

Should you still have questions on choice between Atom N455 and Ryzen 5 3400G, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---