EPYC 7H12 vs A4-4020

Primary details

Comparing A4-4020 and EPYC 7H12 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2494	37
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	23.55
Market segment	Desktop processor	Server
Series	no data	AMD EPYC
Architecture codename	Richland (2013−2014)	Zen 2 (2019−2020)
Release date	January 2014 (10 years ago)	18 September 2019 (4 years ago)
Current price	no data	$1750

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

A4-4020 and EPYC 7H12 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	2 (Dual-core)	64 (Tetrahexaconta-Core)
Threads	2	128
Base clock speed	3.2 GHz	2.6 GHz
Boost clock speed	3.4 GHz	3.3 GHz
L1 cache	96K	96K (per core)
L2 cache	1 MB (shared)	512K (per core)
L3 cache	no data	256 MB (shared)
Chip lithography	32 nm	7 nm, 14 nm
Die size	246 mm2	192 mm2
Maximum case temperature (TCase)	70 °C	no data
Number of transistors	1,303 million	4,800 million
64 bit support	+	+
Windows 11 compatibility	no data	+
Unlocked multiplier	No	Yes

Compatibility

Information on A4-4020 and EPYC 7H12 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 (Multiprocessor)
Socket	FM2	TR4
Power consumption (TDP)	65 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A4-4020 and EPYC 7H12. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	no data
AVX	+	+
PowerNow	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by A4-4020 and EPYC 7H12 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by A4-4020 and EPYC 7H12. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1333	DDR4 Eight-channel
Maximum memory size	no data	4 TiB
Max memory channels	no data	8
Maximum memory bandwidth	no data	204.763 GB/s
ECC memory support	no data	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon HD 7480D

no data

Peripherals

Specifications and connection of peripherals supported by A4-4020 and EPYC 7H12.

PCIe version

2.0

no data

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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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

EPYC 7H12 outperforms A4-4020 by 5390% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	0.82	45.02
Physical cores	2	64
Threads	2	128
Chip lithography	32 nm	7 nm
Power consumption (TDP)	65 Watt	280 Watt

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Should you still have questions on choice between A4-4020 and EPYC 7H12, ask them in Comments section, and we shall answer.

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