Ryzen 9 7945HX vs Ryzen Threadripper 3970X

Primary Details

Comparing Ryzen Threadripper 3970X and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	54	88
Place by popularity	not in top-100	not in top-100
Cost-Effectiveness Evaluation	24.30	no data
Market segment	Desktop processor	Laptop
Series	AMD Ryzen Threadripper	no data
Architecture codename	Matisse (2019−2020)	Dragon Range-HX (Zen 4)
Release date	25 November 2019 (4 years ago)	4 January 2023 (1 year ago)
Launch price (MSRP)	$1,999	no data
Current price	$1675 (0.8x MSRP)	no data

Cost-Effectiveness Evaluation

Performance per price, higher is better.

Detailed Specifications

Ryzen Threadripper 3970X and Ryzen 9 7945HX 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	32 (Dotriaconta-Core)	16 (Hexadeca-Core)
Threads	64	32
Base clock speed	3.7 GHz	2.5 GHz
Boost clock speed	4.5 GHz	5.4 GHz
Bus support	8 × 16 GT/s	no data
L1 cache	96K (per core)	64K (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	128 MB	64 MB (shared)
Chip lithography	7 nm, 12 nm	CCD = 5 nm, I/O = 6 nm
Die size	no data	2x 71 mm2
Maximum core temperature	no data	100 °C
Number of transistors	19,200 million	13,140 million
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	Yes	Yes

Compatibility

Information on Ryzen Threadripper 3970X and Ryzen 9 7945HX 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
Socket	TR4	FL1
Power consumption (TDP)	280 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper 3970X and Ryzen 9 7945HX. 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 Ryzen Threadripper 3970X and Ryzen 9 7945HX are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper 3970X and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR5
Maximum memory size	256 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	102.403 GB/s	no data
ECC memory support	+	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

-

AMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper 3970X and Ryzen 9 7945HX.

PCIe version	no data	5.0
PCI Express lanes	no data	28

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.

Ryzen Threadripper 3970X outperforms Ryzen 9 7945HX by 15% based on our aggregated benchmark results.

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Pros & Cons Summary

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Performance score	40.91	35.52
Recency	25 November 2019	4 January 2023
Physical cores	32	16
Threads	64	32
Power consumption (TDP)	280 Watt	55 Watt

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Should you still have questions on choice between Ryzen Threadripper 3970X and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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