EPYC 9645 vs A4 Micro-6400T

Primary details

Comparing A4 Micro-6400T and EPYC 9645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2723	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	AMD A-Series	no data
Power efficiency	14.30	no data
Architecture codename	Mullins (2014)	Turin (2024)
Release date	29 April 2014 (10 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$11,048

Detailed specifications

A4 Micro-6400T and EPYC 9645 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)	96
Threads	4	192
Base clock speed	1 GHz	2.3 GHz
Boost clock speed	1.6 GHz	3.7 GHz
L1 cache	no data	80 KB (per core)
L2 cache	2048 KB	1 MB (per core)
L3 cache	no data	256 MB (shared)
Chip lithography	28 nm	3 nm
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on A4 Micro-6400T and EPYC 9645 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	no data	2
Socket	FT3b	SP5
Power consumption (TDP)	4.5 Watt	320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A4 Micro-6400T and EPYC 9645. You'll probably need this information if you require some particular technology.

Instruction set extensions	86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX	no data
AES-NI	+	+
FMA	FMA4	-
AVX	+	+
PowerNow	+	-
PowerGating	+	-
VirusProtect	+	-
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by A4 Micro-6400T and EPYC 9645 are enumerated here.

AMD-V	+	+
IOMMU 2.0	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A4 Micro-6400T and EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1333	DDR5
Max memory channels	1	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R3 Graphics	N/A
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A4 Micro-6400T and EPYC 9645 integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A4 Micro-6400T and EPYC 9645 integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	+	-

Peripherals

Specifications and connection of peripherals supported by A4 Micro-6400T and EPYC 9645.

PCIe version	2.0	5.0
PCI Express lanes	no data	128

Pros & cons summary

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Recency	29 April 2014	10 October 2024
Physical cores	4	96
Threads	4	192
Chip lithography	28 nm	3 nm
Power consumption (TDP)	4 Watt	320 Watt

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