Ryzen 9 9955HX3D vs Ryzen Threadripper 3990X

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	53	97
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	10.14	no data
Market segment	Desktop processor	Laptop
Series	AMD Ryzen Threadripper	AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency	6.86	27.32
Designer	AMD	AMD
Manufacturer	TSMC	no data
Architecture codename	Matisse (2019−2020)	Fire Range-HX (Zen 5) (2025)
Release date	25 November 2019 (5 years ago)	6 January 2025 (less than a year ago)
Launch price (MSRP)	$3,999	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Ryzen Threadripper 3990X and Ryzen 9 9955HX3D 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	2.9 GHz	no data
Boost clock speed	4.3 GHz	5.4 GHz
Multiplier	29	no data
L1 cache	4 MB	1.3 MB
L2 cache	32 MB	16 MB
L3 cache	256 MB	128 MB
Chip lithography	7 nm, 12 nm	no data
Die size	74 mm2	no data
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	38740 Million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Ryzen Threadripper 3990X and Ryzen 9 9955HX3D 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	no data
Socket	TR4	no data
Power consumption (TDP)	280 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper 3990X and Ryzen 9 9955HX3D. You'll probably need this information if you require some particular technology.

AES-NI	+	-
AVX	+	-
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen Threadripper 3990X and Ryzen 9 9955HX3D are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper 3990X and Ryzen 9 9955HX3D. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	no data
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	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

-

AMD Radeon 610M ( - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper 3990X and Ryzen 9 9955HX3D.

PCIe version

4.0

no data

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.

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Pros & cons summary

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Performance score	48.03	37.56
Recency	25 November 2019	6 January 2025
Physical cores	64	16
Threads	128	32
Power consumption (TDP)	280 Watt	55 Watt

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