A4 Micro-6400T vs EPYC 7401P

Primary details

Comparing EPYC 7401P and A4 Micro-6400T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	339	2721
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.65	no data
Market segment	Server	Laptop
Series	AMD EPYC	AMD A-Series
Power efficiency	10.00	14.24
Architecture codename	Naples (2017−2018)	Mullins (2014)
Release date	20 June 2017 (7 years ago)	29 April 2014 (10 years ago)
Launch price (MSRP)	$1,075	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7401P and A4 Micro-6400T 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	24 (Tetracosa-Core)	4 (Quad-Core)
Threads	48	4
Base clock speed	2 GHz	1 GHz
Boost clock speed	2 GHz	1.6 GHz
Multiplier	20	no data
L1 cache	2.25 MB	no data
L2 cache	12 MB	2048 KB
L3 cache	64 MB (shared)	no data
Chip lithography	14 nm	28 nm
Die size	213 mm2	no data
Number of transistors	19200 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7401P and A4 Micro-6400T 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 (Uniprocessor)	no data
Socket	TR4	FT3b
Power consumption (TDP)	155 W, 170 Watt	4.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7401P and A4 Micro-6400T. You'll probably need this information if you require some particular technology.

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

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7401P and A4 Micro-6400T are enumerated here.

AMD-V	+	+
IOMMU 2.0	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7401P and A4 Micro-6400T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR3-1333
Maximum memory size	2 TiB	no data
Max memory channels	8	1
Maximum memory bandwidth	170.671 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	AMD Radeon R3 Graphics
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
VCE	-	+

Graphics interfaces

Available interfaces and connections of EPYC 7401P and A4 Micro-6400T integrated GPUs.

DisplayPort	-	+
HDMI	-	+

Graphics API support

APIs supported by EPYC 7401P and A4 Micro-6400T integrated GPUs, sometimes API versions are included.

DirectX	no data	DirectX® 12
Vulkan	-	+

Peripherals

Specifications and connection of peripherals supported by EPYC 7401P and A4 Micro-6400T.

PCIe version	3.0	2.0
PCI Express lanes	128	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.

---

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.

---

Pros & cons summary

---

Performance score	18.31	0.69
Recency	20 June 2017	29 April 2014
Physical cores	24	4
Threads	48	4
Chip lithography	14 nm	28 nm
Power consumption (TDP)	155 Watt	4 Watt

---

Should you still have questions on choice between EPYC 7401P and A4 Micro-6400T, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---