Ryzen Threadripper 3970X vs EPYC 7742

Primary details

Comparing EPYC 7742 and Ryzen Threadripper 3970X processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	44	63
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.71	16.49
Market segment	Server	Desktop processor
Series	AMD EPYC	AMD Ryzen Threadripper
Architecture codename	Zen 2 (2017−2020)	Matisse (2019−2020)
Release date	7 August 2019 (5 years ago)	7 November 2019 (4 years ago)
Launch price (MSRP)	$6,950	$1,999

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen Threadripper 3970X has 508% better value for money than EPYC 7742.

Detailed specifications

EPYC 7742 and Ryzen Threadripper 3970X 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)	32 (Dotriaconta-Core)
Threads	128	64
Base clock speed	2.25 GHz	3.7 GHz
Boost clock speed	3.4 GHz	4.5 GHz
Bus rate	no data	8 × 16 GT/s
Multiplier	22.5	37
L1 cache	4 MB	2 MB
L2 cache	32 MB	16 MB
L3 cache	256 MB (shared)	128 MB
Chip lithography	7 nm, 14 nm	7 nm, 12 nm
Die size	192 mm2	no data
Number of transistors	4,800 million	23540 Million
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	+

Compatibility

Information on EPYC 7742 and Ryzen Threadripper 3970X 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)	1 (Uniprocessor)
Socket	TR4	TR4
Power consumption (TDP)	225 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7742 and Ryzen Threadripper 3970X. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Precision Boost 2	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7742 and Ryzen Threadripper 3970X are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7742 and Ryzen Threadripper 3970X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR4 Eight-channel
Maximum memory size	4 TiB	256 GB
Max memory channels	8	4
Maximum memory bandwidth	204.763 GB/s	102.403 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.

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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

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Performance score	45.18	40.92
Recency	7 August 2019	7 November 2019
Physical cores	64	32
Threads	128	64
Power consumption (TDP)	225 Watt	280 Watt

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Should you still have questions on choice between EPYC 7742 and Ryzen Threadripper 3970X, ask them in Comments section, and we shall answer.

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