EPYC 7702P vs Ryzen 9 3900X

Primary details

Comparing Ryzen 9 3900X and EPYC 7702P processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	236	51
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	36.73	25.94
Market segment	Desktop processor	Server
Series	AMD Ryzen 9	AMD EPYC
Architecture codename	Matisse (Zen 2) (2019−2020)	Zen 2 (2019−2020)
Release date	7 July 2019 (4 years ago)	7 August 2019 (4 years ago)
Launch price (MSRP)	$499	$4,425
Current price	$381 (0.8x MSRP)	$1524 (0.3x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 3900X has 42% better value for money than EPYC 7702P.

Detailed specifications

Ryzen 9 3900X and EPYC 7702P 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	12 (Dodeca-Core)	64 (Tetrahexaconta-Core)
Threads	24	128
Base clock speed	3.8 GHz	2 GHz
Boost clock speed	4.6 GHz	3.35 GHz
L1 cache	768 KB	4 MB
L2 cache	6 MB	32 MB
L3 cache	64 MB	256 MB (shared)
Chip lithography	7 nm, 12 nm	7 nm, 14 nm
Die size	no data	192 mm2
Maximum core temperature	95 °C	no data
Number of transistors	19,200 million	4,800 million
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	Yes	Yes

Compatibility

Information on Ryzen 9 3900X and EPYC 7702P 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)	1 (Uniprocessor)
Socket	AM4	TR4
Power consumption (TDP)	105 Watt	200 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900X and EPYC 7702P. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900X and EPYC 7702P are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900X and EPYC 7702P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Dual-channel	DDR4 Eight-channel
Maximum memory size	128 GB	4 TiB
Max memory channels	2	8
Maximum memory bandwidth	51.196 GB/s	204.763 GB/s
ECC memory support	-	+

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 7702P outperforms Ryzen 9 3900X by 97% based on our aggregated benchmark results.

---

Pros & cons summary

---

Performance score	21.11	41.55
Recency	7 July 2019	7 August 2019
Physical cores	12	64
Threads	24	128
Cost	$499	$4425
Power consumption (TDP)	105 Watt	200 Watt

---

Should you still have questions on choice between Ryzen 9 3900X and EPYC 7702P, 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.

---