Ryzen 9 7840HX vs EPYC Embedded 3251

Primary details

Comparing EPYC Embedded 3251 and Ryzen 9 7840HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	AMD EPYC Embedded	AMD Dragon Range (Zen 4, Ryzen 7045)
Architecture codename	Zen (2017−2020)	Dragon Range-HX (Zen 4)
Release date	21 February 2018 (6 years ago)	17 January 2024 (less than a year ago)
Launch price (MSRP)	$315	no data
Current price	$858 (2.7x MSRP)	no data

Detailed specifications

EPYC Embedded 3251 and Ryzen 9 7840HX 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	8 (Octa-Core)	12 (Dodeca-Core)
Threads	16	2412 x 5.1  GHz AMD Zen 4
Base clock speed	2.5 GHz	2.9 GHz
Boost clock speed	2.5 GHz	5.1 GHz
L1 cache	768 KB	768 KB
L2 cache	4 MB	12 MB
L3 cache	16 MB (shared)	64 MB
Chip lithography	14 nm	5 nm
Die size	213 mm2	no data
Maximum core temperature	no data	100 °C
Number of transistors	4800 Million	9900 Million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	Yes	No

Compatibility

Information on EPYC Embedded 3251 and Ryzen 9 7840HX 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	FL1
Power consumption (TDP)	55 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC Embedded 3251 and Ryzen 9 7840HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	DDR5-5200 RAM, PCIe 5, 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	no data	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC Embedded 3251 and Ryzen 9 7840HX are enumerated here.

AMD-V

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3251 and Ryzen 9 7840HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR5
Maximum memory size	512 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	42.671 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 610M

Pros & cons summary

---

Recency	21 February 2018	17 January 2024
Physical cores	8	12
Threads	16	2412 x 5.1 GHz AMD Zen 4
Chip lithography	14 nm	5 nm

---

Should you still have questions on choice between EPYC Embedded 3251 and Ryzen 9 7840HX, 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.

---