Ryzen 9 9955HX vs Ryzen 9 9950X

VS

Aggregate performance score

Ryzen 9 9950X
2024
16 cores / 32 threads, 170 Watt
41.24
+14.5%
Ryzen 9 9955HX
2025
16 cores / 32 threads, 55 Watt
36.01

Ryzen 9 9950X outperforms Ryzen 9 9955HX by a moderate 15% based on our aggregate benchmark results.

Primary details

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

Place in the ranking71115
Place by popularity98not in top-100
Cost-effectiveness evaluation66.14no data
Market segmentDesktop processorLaptop
Seriesno dataAMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency23.2762.79
DesignerAMDAMD
ManufacturerTSMCno data
Architecture codenameGranite Ridge (2024−2025)Fire Range-HX (Zen 5) (2025)
Release date15 August 2024 (less than a year ago)6 January 2025 (less than a year ago)
Launch price (MSRP)$649no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

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 cores16 (Hexadeca-Core)16 (Hexadeca-Core)
Threads3232
Base clock speed4.3 GHzno data
Boost clock speed5.7 GHz5.4 GHz
L1 cache80 KB (per core)1.3 MB
L2 cache1 MB (per core)16 MB
L3 cache64 MB (shared)64 MB
Chip lithography4 nmno data
Die size2x 70.6 mm2no data
Maximum core temperature95 °Cno data
Number of transistors16,630 millionno 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 configuration1no data
SocketAM5no data
Power consumption (TDP)170 Watt55 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 extensionsSMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4Ano 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 typesDDR5no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon GraphicsAMD Radeon 610M ( - 2200 MHz)

Peripherals

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

PCIe version5.0no data
PCI Express lanes24no 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.


Combined synthetic benchmark score

This is our combined benchmark performance rating.

Ryzen 9 9950X 41.24
+14.5%
Ryzen 9 9955HX 36.01

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.

Ryzen 9 9950X 66162
+14.5%
Ryzen 9 9955HX 57771

Geekbench 5.5 Multi-Core

Ryzen 9 9950X 23982
+8.4%
Ryzen 9 9955HX 22114

7-Zip Single

Ryzen 9 9950X 7852
+8.6%
Ryzen 9 9955HX 7230

7-Zip

Ryzen 9 9950X 160423
+12%
Ryzen 9 9955HX 143206

CrossMark Overall

Ryzen 9 9950X 2451
+10.5%
Ryzen 9 9955HX 2218

WebXPRT 4 Overall

Ryzen 9 9950X 357
+19.5%
Ryzen 9 9955HX 299

Blender v3.3 Classroom CPU(-)

Ryzen 9 9950X 118
Ryzen 9 9955HX 124
+5.1%

Geekbench 6.4 Multi-Core

Ryzen 9 9950X 21383
+9.2%
Ryzen 9 9955HX 19575

Geekbench 6.4 Single-Core

Ryzen 9 9950X 3408
+5.7%
Ryzen 9 9955HX 3225

Gaming performance

Pros & cons summary


Performance score 41.24 36.01
Integrated graphics card 1.87 2.70
Recency 15 August 2024 6 January 2025
Power consumption (TDP) 170 Watt 55 Watt

Ryzen 9 9950X has a 14.5% higher aggregate performance score.

Ryzen 9 9955HX, on the other hand, has 44.4% faster integrated GPU, an age advantage of 4 months, and 209.1% lower power consumption.

The AMD Ryzen 9 9950X is our recommended choice as it beats the AMD Ryzen 9 9955HX in performance tests.

Note that Ryzen 9 9950X is a desktop processor while Ryzen 9 9955HX is a notebook one.

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AMD Ryzen 9 9950X
Ryzen 9 9950X
AMD Ryzen 9 9955HX
Ryzen 9 9955HX

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Community ratings

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