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AMD Ryzen 9 9955HX vs AMD Ryzen 9 9955HX3D: Comparison
What is the difference between Ryzen 9 9955HX and Ryzen 9 9955HX3D?
The gap that matters here is l3 cache: Ryzen 9 9955HX 64 MB against Ryzen 9 9955HX3D 128 MB, which puts Ryzen 9 9955HX3D 50% ahead. Cinebench 2024 (Multi-Core) backs the spec sheet up. Ryzen 9 9955HX3D scores 2,108 to 2,058, 2% clear. 3d stacked cache is not the same on both, No on the Ryzen 9 9955HX versus Yes on the Ryzen 9 9955HX3D.
Which should you buy, Ryzen 9 9955HX or Ryzen 9 9955HX3D?
The Ryzen 9 9955HX is the one to take for gaming laptops and mobile content creation, though it is the wrong buy for thin-and-light ultraportables and all-day battery life needs. The Ryzen 9 9955HX3D suits high-end gaming laptops and mobile workstations, though it is not built for thin-and-light laptops and battery-focused ultraportables. Our rating of the Ryzen 9 9955HX (8.5/10): the AMD Ryzen 9 9955HX delivers desktop-class multi-core performance in a laptop form factor, ideal for demanding gaming and creation workloads. Our rating of the Ryzen 9 9955HX3D (9.1/10): the AMD Ryzen 9 9955HX3D is the pinnacle of mobile gaming performance, bringing 3D V-Cache and desktop-class core counts to a laptop chassis.
Where the two are identical
Where they agree, they agree completely, total cores, performance cores, efficiency cores, total threads and p-core boost clock included, so the decision does not turn on any of those. They match on 27 further specifications as well.
Frequently asked questions
Is the P-Core Base Clock the same on the Ryzen 9 9955HX and Ryzen 9 9955HX3D?
It is. Both are listed at 2.5 GHz, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 9 9955HX
- Laptop
- AMD Ryzen 9 9955HX3D
- Laptop
Codename
- AMD Ryzen 9 9955HX
- Fire Range
- AMD Ryzen 9 9955HX3D
- Fire Range
Release Year
- AMD Ryzen 9 9955HX
- 2025
- AMD Ryzen 9 9955HX3D
- 2025
TDP
- AMD Ryzen 9 9955HX
- 55 W
- AMD Ryzen 9 9955HX3D
- 55 W
iGPU
- AMD Ryzen 9 9955HX
- AMD Radeon 610M
- AMD Ryzen 9 9955HX3D
- AMD Radeon 610M
Market Segment
- AMD Ryzen 9 9955HX
- Laptop
- AMD Ryzen 9 9955HX3D
- Laptop
Microarchitecture
- AMD Ryzen 9 9955HX
- Zen 5 (Fire Range)
- AMD Ryzen 9 9955HX3D
- Zen 5 (Fire Range)
Socket
- AMD Ryzen 9 9955HX
- FL1
- AMD Ryzen 9 9955HX3D
- FL1
Process Node
- AMD Ryzen 9 9955HX
- TSMC 4nm FinFET
- AMD Ryzen 9 9955HX3D
- TSMC 4nm FinFET
Total Cores
- AMD Ryzen 9 9955HX
- 16
- AMD Ryzen 9 9955HX3D
- 16
Performance Cores
- AMD Ryzen 9 9955HX
- 16
- AMD Ryzen 9 9955HX3D
- 16
Efficiency Cores
- AMD Ryzen 9 9955HX
- 0
- AMD Ryzen 9 9955HX3D
- 0
Total Threads
- AMD Ryzen 9 9955HX
- 32
- AMD Ryzen 9 9955HX3D
- 32
SMT Enabled
- AMD Ryzen 9 9955HX
- Yes
- AMD Ryzen 9 9955HX3D
- Yes
P-Core Base Clock
- AMD Ryzen 9 9955HX
- 2.5 GHz
- AMD Ryzen 9 9955HX3D
- 2.5 GHz
P-Core Boost Clock
- AMD Ryzen 9 9955HX
- 5.4 GHz
- AMD Ryzen 9 9955HX3D
- 5.4 GHz
Unlocked Multiplier
- AMD Ryzen 9 9955HX
- Yes
- AMD Ryzen 9 9955HX3D
- Yes
L2 Cache
- AMD Ryzen 9 9955HX
- 16 MB
- AMD Ryzen 9 9955HX3D
- 16 MB
L3 Cache
- AMD Ryzen 9 9955HX
- 64 MB-50%
- AMD Ryzen 9 9955HX3D
- 128 MBBest
3D Stacked Cache
- AMD Ryzen 9 9955HX
- No
- AMD Ryzen 9 9955HX3D
- Yes
Base Power
- AMD Ryzen 9 9955HX
- 55-75W
- AMD Ryzen 9 9955HX3D
- 55-75W
Max Turbo Power
- AMD Ryzen 9 9955HX
- 75 W
- AMD Ryzen 9 9955HX3D
- 75 W
Configurable TDP Floor
- AMD Ryzen 9 9955HX
- 55 W
- AMD Ryzen 9 9955HX3D
- 55 W
Max Operating Temp
- AMD Ryzen 9 9955HX
- 100 C
- AMD Ryzen 9 9955HX3D
- 100 C
Memory Type
- AMD Ryzen 9 9955HX
- DDR5, 2-Channel
- AMD Ryzen 9 9955HX3D
- DDR5, 2-Channel
Max Memory Speed
- AMD Ryzen 9 9955HX
- 5600 MT/s
- AMD Ryzen 9 9955HX3D
- 5600 MT/s
Memory Channels
- AMD Ryzen 9 9955HX
- 2
- AMD Ryzen 9 9955HX3D
- 2
Max Memory Capacity
- AMD Ryzen 9 9955HX
- 96 GB
- AMD Ryzen 9 9955HX3D
- 96 GB
ECC Support
- AMD Ryzen 9 9955HX
- No
- AMD Ryzen 9 9955HX3D
- No
Integrated Graphics
- AMD Ryzen 9 9955HX
- Yes
- AMD Ryzen 9 9955HX3D
- Yes
iGPU Model
- AMD Ryzen 9 9955HX
- AMD Radeon 610M
- AMD Ryzen 9 9955HX3D
- AMD Radeon 610M
iGPU Compute Units
- AMD Ryzen 9 9955HX
- 2
- AMD Ryzen 9 9955HX3D
- 2
Copilot Plus Certified
- AMD Ryzen 9 9955HX
- No
- AMD Ryzen 9 9955HX3D
- No
PCIe Generation
- AMD Ryzen 9 9955HX
- PCIe 5.0
- AMD Ryzen 9 9955HX3D
- PCIe 5.0
PCIe Lanes
- AMD Ryzen 9 9955HX
- 28
- AMD Ryzen 9 9955HX3D
- 28
Retail Availability
- AMD Ryzen 9 9955HX
- Tray OEM
- AMD Ryzen 9 9955HX3D
- Tray OEM
Benchmarks
- General CPU
Cinebench 2024 (Multi-Core)
- AMD Ryzen 9 9955HX
- 2,058-2%
- AMD Ryzen 9 9955HX3D
- 2,108Best
Renders a 3D scene on every core. Shows speed in rendering and other heavy work.
Cinebench 2024 (Single-Core)
- AMD Ryzen 9 9955HX
- 132Best
- AMD Ryzen 9 9955HX3D
- 130-2%
Renders a 3D scene on one core. Shows how quick the CPU feels in everyday apps and games.
Geekbench 6 (Multi-Core)
- AMD Ryzen 9 9955HX
- 19,441-3%
- AMD Ryzen 9 9955HX3D
- 20,045Best
Everyday tasks like photo editing, compression and compiling, run on all cores.
Geekbench 6 (Single-Core)
- AMD Ryzen 9 9955HX
- 3,252Best
- AMD Ryzen 9 9955HX3D
- 3,181-2%
The same everyday tasks on one core. Tracks how responsive the PC feels.
Which one should you pick?
Choose 9955HX if you want the higher L2 cache (16 MB vs 16 MB), the higher memory channels (2 vs 2) and the higher PCIe lanes (28 vs 28).
Choose 9955HX3D if you want the higher L3 cache (128 MB vs 64 MB), the higher cinebench 2024 (Multi-Core) (2,108 vs 2,058) and the higher geekbench 6 (Multi-Core) (20,045 vs 19,441).
Verdict
AMD Ryzen 9 9955HX
8.5 / 10 Expert Rating
The AMD Ryzen 9 9955HX delivers desktop-class multi-core performance in a laptop form factor, ideal for demanding gaming and creation workloads.
AMD Ryzen 9 9955HX3D
9.1 / 10 Expert Rating
The AMD Ryzen 9 9955HX3D is the pinnacle of mobile gaming performance, bringing 3D V-Cache and desktop-class core counts to a laptop chassis.