EPYC 7663 vs Atom Z2420

Primary details

Comparing Atom Z2420 and EPYC 7663 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	31
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	4.64
Market segment	Laptop	Server
Series	no data	AMD EPYC
Power efficiency	no data	20.38
Architecture codename	Saltwell (2013)	Milan (2021−2023)
Release date	1 January 2013 (11 years ago)	15 March 2021 (3 years ago)
Launch price (MSRP)	no data	$6,366

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom Z2420 and EPYC 7663 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)	56 (Hexapentaconta-Core)
Threads	2	112
Base clock speed	no data	2 GHz
Boost clock speed	1.2 GHz	3.5 GHz
Multiplier	no data	20
L1 cache	64K (per core)	64 KB (per core)
L2 cache	512K (per core)	512 KB (per core)
L3 cache	0 KB	256 MB (shared)
Chip lithography	32 nm	7 nm+
Die size	65 mm2	8x 81 mm2
Maximum core temperature	90 °C	no data
Number of transistors	140 million	33,200 million
64 bit support	-	+
Windows 11 compatibility	-	+

Compatibility

Information on Atom Z2420 and EPYC 7663 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	SP3
Power consumption (TDP)	3 Watt	240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z2420 and EPYC 7663. 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

Security technologies

Atom Z2420 and EPYC 7663 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 7663 are enumerated here.

AMD-V

-

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z2420 and EPYC 7663. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR4-3200
Maximum memory size	1 GB	4 TiB
Max memory channels	2	no data
Maximum memory bandwidth	6.4 GB/s	204.795 GB/s

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 7663 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Atom Z2420 and EPYC 7663.

PCIe version	no data	4.0
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	15 March 2021
Physical cores	1	56
Threads	2	112
Chip lithography	32 nm	7 nm
Power consumption (TDP)	3 Watt	240 Watt

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