Ryzen 9 9955HX vs Ryzen 9 9950X

Primary details

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

Place in the ranking	72	111
Place by popularity	95	not in top-100
Cost-effectiveness evaluation	66.30	no data
Market segment	Desktop processor	Laptop
Series	no data	AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency	23.33	63.84
Designer	AMD	AMD
Manufacturer	TSMC	no data
Architecture codename	Granite Ridge (2024−2025)	Fire Range-HX (Zen 5) (2025)
Release date	15 August 2024 (less than a year ago)	6 January 2025 (less than a year ago)
Launch price (MSRP)	$649	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Ryzen 9 9950X and Ryzen 9 9955HX 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	16 (Hexadeca-Core)	16 (Hexadeca-Core)
Threads	32	32
Base clock speed	4.3 GHz	no data
Boost clock speed	5.7 GHz	5.4 GHz
L1 cache	80 KB (per core)	1.3 MB
L2 cache	1 MB (per core)	16 MB
L3 cache	64 MB (shared)	64 MB
Chip lithography	4 nm	no data
Die size	2x 70.6 mm2	no data
Maximum core temperature	95 °C	no data
Number of transistors	16,630 million	no data
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 9 9950X and Ryzen 9 9955HX 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	AM5	no data
Power consumption (TDP)	170 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 9950X and Ryzen 9 9955HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	SMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A	no data
AES-NI	+	-
AVX	+	-
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 9950X and Ryzen 9 9955HX are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 9950X and Ryzen 9 9955HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR5

no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare Graphics and Radeon 610M

AMD Radeon Graphics

AMD Radeon 610M ( - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 9950X and Ryzen 9 9955HX.

PCIe version	5.0	no data
PCI Express lanes	24	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	41.13	36.42
Integrated graphics card	1.92	2.78
Recency	15 August 2024	6 January 2025
Power consumption (TDP)	170 Watt	55 Watt

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