EPYC 7643 vs A12-9800E

Primary details

Comparing A12-9800E and EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1741	31
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.64	39.01
Market segment	Desktop processor	Server
Series	no data	AMD EPYC
Architecture codename	Bristol Ridge (2016−2019)	Milan (2021)
Release date	27 July 2017 (6 years ago)	15 March 2021 (3 years ago)
Launch price (MSRP)	$105	$4,995
Current price	$199 (1.9x MSRP)	$1330 (0.3x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

EPYC 7643 has 2279% better value for money than A12-9800E.

Detailed specifications

A12-9800E and EPYC 7643 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	4 (Quad-Core)	48 (Octatetraconta-Core)
Threads	4	96
Base clock speed	3.1 GHz	2.3 GHz
Boost clock speed	3.8 GHz	3.6 GHz
L1 cache	no data	64 KB (per core)
L2 cache	2048 KB	512 KB (per core)
L3 cache	0 KB	256 MB (shared)
Chip lithography	28 nm	7 nm+
Die size	246 mm2	8x 81 mm2
Maximum core temperature	90 °C	no data
Maximum case temperature (TCase)	74 °C	no data
Number of transistors	1,178 million	33,200 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes

Compatibility

Information on A12-9800E and EPYC 7643 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	AM4	SP3
Power consumption (TDP)	35 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A12-9800E and EPYC 7643. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	no data
AVX	+	+
FRTC	1	no data
FreeSync	1	no data
PowerTune	+	no data
TrueAudio	+	no data
PowerNow	+	no data
PowerGating	+	no data
VirusProtect	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by A12-9800E and EPYC 7643 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by A12-9800E and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400	DDR4-3200
Maximum memory size	no data	4 TiB
Max memory channels	2	no data
Maximum memory bandwidth	no data	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R7 Graphics	N/A
iGPU core count	8	no data
Enduro	+	no data
UVD	+	no data
VCE	+	no data

Graphics interfaces

Available interfaces and connections of A12-9800E and EPYC 7643 integrated GPUs.

DisplayPort	+	no data
HDMI	+	no data

Graphics API support

APIs supported by A12-9800E and EPYC 7643 integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	1	no data

Peripherals

Specifications and connection of peripherals supported by A12-9800E and EPYC 7643.

PCIe version	3.0	4.0
PCI Express lanes	8	128

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 7643 outperforms A12-9800E by 2095% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	2.24	49.17
Recency	27 July 2017	15 March 2021
Physical cores	4	48
Threads	4	96
Cost	$105	$4995
Chip lithography	28 nm	7 nm
Power consumption (TDP)	35 Watt	225 Watt

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Should you still have questions on choice between A12-9800E and EPYC 7643, ask them in Comments section, and we shall answer.

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