A4-9120C vs EPYC 7401

Primary details

Comparing EPYC 7401 and A4-9120C processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	88	2752
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	14.69	no data
Market segment	Server	Laptop
Series	AMD EPYC	AMD Bristol Ridge
Architecture codename	Naples (2017−2018)	Stoney Ridge (2016−2019)
Release date	29 June 2017 (7 years ago)	6 January 2019 (5 years ago)
Launch price (MSRP)	$1,850	no data
Current price	$1502 (0.8x MSRP)	$290

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7401 and A4-9120C 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)	2 (Dual-core)
Threads	48	2
Base clock speed	2 GHz	1.6 GHz
Boost clock speed	3 GHz	2.4 GHz
L1 cache	96K (per core)	160 KB
L2 cache	512K (per core)	1 MB
L3 cache	64 MB (shared)	no data
Chip lithography	14 nm	28 nm
Die size	192 mm2	124.5 mm2
Number of transistors	4,800 million	1200 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No

Compatibility

Information on EPYC 7401 and A4-9120C 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	2 (Multiprocessor)	no data
Socket	TR4	BGA
Power consumption (TDP)	170 Watt	6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7401 and A4-9120C. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Single-Channel DDR4-2133, Virtualization,
AES-NI	+	no data
AVX	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7401 and A4-9120C are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7401 and A4-9120C. Depending on the motherboard, higher memory frequencies may be supported.

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

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon R4 (Stoney Ridge)

Peripherals

Specifications and connection of peripherals supported by EPYC 7401 and A4-9120C.

PCIe version	3.0	no data
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.

EPYC 7401 outperforms A4-9120C by 6643% based on our aggregate benchmark results.

---

Pros & cons summary

---

Performance score	35.74	0.53
Recency	29 June 2017	6 January 2019
Physical cores	24	2
Threads	48	2
Chip lithography	14 nm	28 nm
Power consumption (TDP)	170 Watt	6 Watt

---

Should you still have questions on choice between EPYC 7401 and A4-9120C, 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.

---