EPYC 9455 vs Atom Z2420

Primary details

Comparing Atom Z2420 and EPYC 9455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Architecture codename	Saltwell (2013)	Turin (2024)
Release date	1 January 2013 (11 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$5,412

Detailed specifications

Atom Z2420 and EPYC 9455 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)	48 (Octatetraconta-Core)
Threads	2	96
Base clock speed	no data	3.15 GHz
Boost clock speed	1.2 GHz	4.4 GHz
L1 cache	64K (per core)	80 KB (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	0 KB	192 MB (shared)
Chip lithography	32 nm	4 nm
Die size	65 mm2	6x 70.6 mm2
Maximum core temperature	90 °C	no data
Number of transistors	140 million	49,890 million
64 bit support	-	+
Windows 11 compatibility	-	no data

Compatibility

Information on Atom Z2420 and EPYC 9455 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	2
Socket	FC-MB4617	SP5
Power consumption (TDP)	3 Watt	300 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z2420 and EPYC 9455. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE, Intel® SSE2, Intel® SSE3	no data
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
PAE	32 Bit	no data
GPIO	152	no data
Precision Boost 2	no data	+

Security technologies

Atom Z2420 and EPYC 9455 technologies aimed at improving security, for example, by protecting against hacks.

EDB

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z2420 and EPYC 9455 are enumerated here.

AMD-V

-

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z2420 and EPYC 9455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR5
Maximum memory size	1 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	6.4 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

PowerVR SGX540 (400 MHz)

N/A

Graphics interfaces

Available interfaces and connections of Atom Z2420 and EPYC 9455 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Atom Z2420 and EPYC 9455.

PCIe version	no data	5.0
PCI Express lanes	no data	128
USB revision	2.0 OTG	no data
Number of USB ports	1	no data
UART	3	no data

Pros & cons summary

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Recency	1 January 2013	10 October 2024
Physical cores	1	48
Threads	2	96
Chip lithography	32 nm	4 nm
Power consumption (TDP)	3 Watt	300 Watt

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