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AMD Ryzen 9 9955HX3D

Laptop CPUAMD

Also called amd ryzen 9 9955hx3d, ryzen 9 9955hx3d, 9955hx3d, ryzen-9-9955hx3d

AMDLaptop CPUZen 5

AMD Ryzen 9 laptop processor on Zen 5, with 16 cores and 32 threads and 16384 KB L2, 128 MB L3 at 55 W TDP on a 4 nm process addressing up to 96 GB and Yes.

What you need to know

Still a capable laptop cpu.

AMD Ryzen 9 9955HX3D launched in January 7, 2025., It has 16 cores and 32 threads on Zen 5, dropping into the FL1 socket. It is no longer the newest SKU in every store, but the chip is still useful when the rest of the PC keeps up.

Still good?
Yes, for most work this class is sold for
Product age
1 year old
Upgrade pressure
Low
Feex says
Laptop SKUs are power-limited. The name on the lid is not the same chip you would get on a desktop board.

What this hardware means today

Age and usefulness are not the same number. This page keeps them separate.

Performance today
Excellent. Laptop performance depends on the OEM power limit as much as this SKU name.
Product age 1 year old
Current generation. Launched January 7, 2025. Newer platforms exist. That does not make this chip unusable by itself.
Support status
Supported. Current Windows and current applications still run on this class of CPU. Platform BIOS support depends on the motherboard or laptop vendor.
Upgrade pressure
Low. Upgrade pressure is low unless you need a different platform feature.

Where does it sit?

Zen 5 sits on AMD's recent Zen desktop and laptop timeline. Later chips keep the brand and change the core.

Zen 2
Zen 3
Zen 4
Zen 5

Performance context

These are qualitative readings, not a fake 8.7 out of 10. Workload still wins.

Gaming: Very Good

Fine when the laptop GPU is the limit. CPU names on thin laptops often are not.

Productivity: Excellent

16 cores cover office, browser, and compile work in this class.

Multithreaded workloads: Very Good

32 threads. Heavy encodes still scale further on higher-core parts.

General use: Excellent

Everyday Windows use is not where most people notice this SKU first.

Efficiency: Depends on the laptop

The same SKU in two laptops can draw very different power. Read the device, not the CPU name alone.

Should you upgrade?

Probably not if this chip already matches your work.

Upgrade makes more sense if

  • Your workload is strongly CPU limited
  • You need a newer platform for memory, I/O, or chipset features
  • You need substantially more multicore performance
  • You are buying a whole new laptop anyway

Upgrade makes less sense if

  • The GPU is the real bottleneck
  • Current applications are already responsive
  • The CPU rarely limits your workload

Specifications

Figures below follow the Feex Hardware Database record for this SKU. Fields without a recorded value are omitted.

Processor

AMD Ryzen 9 9955HX3D is built on Zen 5 using a 4 nm process at TSMC.

AMD Ryzen 9 9955HX3D specifications: Processor
Manufacturer AMD
Family Ryzen 9
Architecture Zen 5
Codename Fire Range
Generation Ryzen 9000 Series
Manufacturing process 4 nm
Foundry TSMC
Segment Laptop

Cores and threads

AMD Ryzen 9 9955HX3D has 16 cores and 32 threads.

AMD Ryzen 9 9955HX3D specifications: Cores and threads
Cores 16
P-cores 16
Threads 32
Threads per core 2

Clock speeds

Base clock is 2.5 GHz. Boost reaches 5.4 GHz.

AMD Ryzen 9 9955HX3D specifications: Clock speeds
Base frequency 2.5 GHz
Max boost 5.4 GHz

Cache

Cache on this sheet is 128 MB L3.

AMD Ryzen 9 9955HX3D specifications: Cache
L2 cache 16384 KB
L3 cache 128 MB
Total cache 144 MB

Memory

AMD Ryzen 9 9955HX3D addresses 96 GB across 2 memory channels.

AMD Ryzen 9 9955HX3D specifications: Memory
Supported types DDR5
Max capacity 96 GB
Channels 2
Max memory speed 5600 MT/s

Package and power

AMD Ryzen 9 9955HX3D uses the FL1 socket and a 55 W TDP.

AMD Ryzen 9 9955HX3D specifications: Package and power
Socket FL1
TDP 55 W
PCIe Revision 5.0, 28 lanes

Integrated graphics

AMD Ryzen 9 9955HX3D includes Yes.

AMD Ryzen 9 9955HX3D specifications: Integrated graphics
Integrated graphics Yes

Market

AMD Ryzen 9 9955HX3D launched January 7, 2025.

AMD Ryzen 9 9955HX3D specifications: Market
Launch date January 7, 2025
Model 9955HX3D

Features

AMD Ryzen 9 9955HX3D records 38 instruction sets on this sheet.

AMD Ryzen 9 9955HX3D specifications: Features
Instruction sets AES-NIAVX-512AVX2AVXAVX-VNNIFMASHAVAESx86-64-v464-bit (x86-64)BMI1BMI2CLMULF16CGFNIPCLMULQDQRDRANDRDSEEDSSE4.1SSE4.2x86-64-v3ABMADXCMPXCHG16BFXSRInvariant TSCLZCNTPOPCNTRDTSCPSSESSE2SSE3SSSE3x86-64-v2XSAVEXSAVEOPTMMXMOVBE
Security AMD SEVAMD SMEExecute Disable (NX)
Virtualization AMD SVMAMD-V (Hardware Virtualization)NPT / RVIIOMMU
OS capabilities Docker / Hyper-V readyLinux KVM readyWindows 11 eligibleAndroid emulator readyWSL2 ready

Independent scores

These are PassMark CPU figures. They are not Feex measurements.

AMD Ryzen 9 9955HX3D specifications: Independent scores
Single-core score 4,509
Multi-core score 62,691
Overall score 16,813
Productivity score 47,062
Creator score 42,596
Engineering score 72,095
Gaming score 29,200
Performance per watt 1139.8

Compatibility

Compatibility
Socket FL1
Board A shared socket is not automatic compatibility. Check the motherboard CPU list and BIOS revision.
Memory DDR5, up to 96 GB
Graphics Yes

A shared socket is not automatic compatibility. Boards often need a BIOS update before a newer chip in the same socket will post.

Laptop power limits, cooling, and the OEM firmware matter as much as the model name.

Read the memory list on the board. The CPU can list more standards than one motherboard will accept.

No post after a CPU swap

Clear CMOS only after you confirm the board list includes this SKU and the BIOS is new enough. A supported name on a box is not the same as a flashed board.

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Partially Verified. How we research.

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