Ryzen 9 7940HX vs EPYC 7702

Primary details

Comparing EPYC 7702 and Ryzen 9 7940HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	45	113
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.87	no data
Market segment	Server	Laptop
Series	AMD EPYC	AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency	20.89	58.50
Architecture codename	Zen 2 (2017−2020)	Dragon Range-HX (Zen 4) (2023−2024)
Release date	7 August 2019 (5 years ago)	17 January 2024 (less than a year ago)
Launch price (MSRP)	$6,450	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7702 and Ryzen 9 7940HX 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	64 (Tetrahexaconta-Core)	16 (Hexadeca-Core)
Threads	128	32
Base clock speed	2 GHz	2.4 GHz
Boost clock speed	3.35 GHz	5.2 GHz
Multiplier	20	no data
L1 cache	96K (per core)	1 MB
L2 cache	512K (per core)	16 MB
L3 cache	256 MB (shared)	64 MB
Chip lithography	7 nm, 14 nm	5 nm
Die size	192 mm2	no data
Maximum core temperature	no data	100 °C
Number of transistors	4,800 million	9900 Million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7702 and Ryzen 9 7940HX 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	FL1
Power consumption (TDP)	200 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7702 and Ryzen 9 7940HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	+	+
FMA	-	+
AVX	+	+
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7702 and Ryzen 9 7940HX are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7702 and Ryzen 9 7940HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR5
Maximum memory size	4 TiB	no data
Max memory channels	8	no data
Maximum memory bandwidth	204.763 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon 610M (400 - 2200 MHz)

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	44.14	34.00
Recency	7 August 2019	17 January 2024
Physical cores	64	16
Threads	128	32
Chip lithography	7 nm	5 nm
Power consumption (TDP)	200 Watt	55 Watt

---

Should you still have questions on choice between EPYC 7702 and Ryzen 9 7940HX, 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.

---