EPYC 9654 vs A6-6400K

General info

Comparing A6-6400K and EPYC 9654 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2366	4
Place by popularity	not in top-100	not in top-100
Value for money	0.12	10.10
Market segment	Desktop processor	Server
Series	AMD A-Series (Desktop)	AMD EPYC
Architecture codename	Richland (2013−2014)	Genoa
Release date	1 June 2013 (10 years ago)	10 November 2022 (1 year ago)
Launch price (MSRP)	no data	$11,805
Current price	$80	$4544 (0.4x MSRP)

Value for money

Performance per price, higher is better.

EPYC 9654 has 8317% better value for money than A6-6400K.

Technical specs

A6-6400K and EPYC 9654 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)	96
Threads	2	192
Base clock speed	3.9 GHz	2.4 GHz
Boost clock speed	4.1 GHz	3.7 GHz
L1 cache	96 KB	64K (per core)
L2 cache	1024 KB	1 MB (per core)
L3 cache	0 KB	384 MB (shared)
Chip lithography	32 nm	5 nm, 6 nm
Die size	246 mm2	12x 72 mm2
Maximum core temperature	70 °C	no data
Maximum case temperature (TCase)	70 °C	no data
Number of transistors	1,178 million	78,840 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	Yes	No

Compatibility

Information on A6-6400K and EPYC 9654 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	FM2	SP5
Power consumption (TDP)	65 Watt	360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A6-6400K and EPYC 9654. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, SSE1-4a, AES, ABM, AVX, BMI1, AMD64, VT, EVP, Turbo Core 3.0	no data
AES-NI	+	+
FMA	FMA4	no data
AVX	+	+
PowerTune	-	no data
TrueAudio	-	no data
PowerNow	+	no data
PowerGating	+	no data
Out-of-band client management	-	no data
VirusProtect	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by A6-6400K and EPYC 9654 are enumerated here.

AMD-V	+	+
IOMMU 2.0	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by A6-6400K and EPYC 9654. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR5-4800
Maximum memory size	no data	6 TiB
Max memory channels	2	no data
Maximum memory bandwidth	no data	460.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon HD 8470D	no data
Number of pipelines	192	no data
Enduro	+	no data
Switchable graphics	1	no data
UVD	+	no data
VCE	+	no data

Graphics interfaces

Available interfaces and connections of A6-6400K and EPYC 9654 integrated GPUs.

DisplayPort	+	no data
HDMI	+	no data

Graphics API support

APIs supported by A6-6400K and EPYC 9654 integrated GPUs, sometimes API versions are included.

DirectX

DirectX® 11

no data

Peripherals

Specifications and connection of peripherals supported by A6-6400K and EPYC 9654.

PCIe version	2.0	5.0
PCI Express lanes	no data	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 9654 outperforms A6-6400K by 8040% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	0.97	78.96
Recency	1 June 2013	10 November 2022
Physical cores	2	96
Threads	2	192
Chip lithography	32 nm	5 nm
Power consumption (TDP)	65 Watt	360 Watt

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Should you still have questions on choice between A6-6400K and EPYC 9654, ask them in Comments section, and we shall answer.

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