EPYC 9555 vs A6 PRO-7400B

Primary details

Comparing A6 PRO-7400B and EPYC 9555 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2439	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	1.50	no data
Architecture codename	Kaveri (2014−2015)	Turin (2024)
Release date	31 July 2014 (10 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$9,826

Detailed specifications

A6 PRO-7400B and EPYC 9555 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	3.5 GHz	3.2 GHz
Boost clock speed	3.9 GHz	4.4 GHz
L1 cache	no data	80 KB (per core)
L2 cache	1024 KB	1 MB (per core)
L3 cache	no data	256 MB (shared)
Chip lithography	28 nm	4 nm
Die size	245 mm2	8x 70.6 mm2
Maximum core temperature	70 °C	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	2,411 million	66,520 million
64 bit support	+	+

Compatibility

Information on A6 PRO-7400B and EPYC 9555 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 PRO-7400B and EPYC 9555. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	-
AVX	+	+
PowerTune	+	-
DualGraphics	+	-
TrueAudio	+	-
PowerNow	+	-
PowerGating	+	-
Out-of-band client management	+	-
VirusProtect	+	-
RAID	+	-
HSA	+	-
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by A6 PRO-7400B and EPYC 9555 are enumerated here.

AMD-V	+	+
IOMMU 2.0	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A6 PRO-7400B and EPYC 9555. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR5
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R5 Graphics	N/A
iGPU core count	4	no data
Number of pipelines	256	no data
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A6 PRO-7400B and EPYC 9555 integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A6 PRO-7400B and EPYC 9555 integrated GPUs, sometimes API versions are included.

DirectX

DirectX® 12

no data

Peripherals

Specifications and connection of peripherals supported by A6 PRO-7400B and EPYC 9555.

PCIe version	3.0	5.0
PCI Express lanes	16	128

Pros & cons summary

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Recency	31 July 2014	10 October 2024
Physical cores	2	64
Threads	2	128
Chip lithography	28 nm	4 nm
Power consumption (TDP)	65 Watt	360 Watt

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