Home/Processors/AMD Ryzen 9 9955HX
AMD Ryzen 9 9955HX
AMD Laptop CPU

AMD Ryzen 9 9955HX

82A
Cores16
Threads32
Boost Clock5.4 GHz
TDP55-75 W (configurable)
SocketFL1
Process4 nm
⇄ Compare with…

Benchmarks

Perf.86
iGPU26
Energy76
Cinebench 2024 Single-Core134
Cinebench 2024 Multi-Core2091
TDP55-75 W
Cache L364MB
Cinebench 2024 (Single)134
Cinebench 2024 (Multi)2091
Geekbench 6 (Single-Core)3273
Geekbench 6 (Multi-Core)19,448
Passmark CPU (Single-Core)4397
Passmark CPU (Multi-Core)56,301
Blender CPU539.16
iGPU FLOPS0.6 TFLOPS

Full specifications

Cinebench

Cinebench 2026 (Single)
717
Cinebench 2026 (Multi)
8163

GeekBench v6

File compression
1520 MB/sec
Clang compilation
222.1 Klines/sec
HTML 5 Browser
329.3 pages/sec
PDF Renderer
545.2 Mpixels/sec
Text processing
341.3 pages/sec
Background blur
70.4 images/sec
Photo processing
123 images/sec
Ray tracing
53.8 Mpixels/sec

PassMark

Integer math
213 GOps/sec
Floating point math
137 GOps/sec
Find prime numbers
288M Primes/sec
Random string sorting
78.1M Strings/sec
Data encryption
37.4 GBytes/sec
Data compression
734.3 MBytes/sec
Physics
2722 Frames/sec
Extended instructions
58.2B Matrices/sec

Performance Per Watt

Cinebench 2024 / Watt
27.9 PPW
Geekbench 6 Multi / Watt
259.3 PPW
Passmark CPU Mark / Watt
750.7 PPW
Blender / Watt
7.19 PPW

General

Vendor
Amd
Released
January 7, 2025
Type
Laptop
Instruction Set
x86-64
Codename
Zen 5 (Fire Range)
Model number
9955HX
Integrated GPU
Radeon 610M
Intel Equivalent
- Intel Core Ultra 9 285HX

CPU

P-Cores
16
P-Threads
32
Base Frequency (P)
2.5 GHz
Turbo Boost Frequency (P)
5.4 GHz
Total Cores
16
Total Threads
32
Bus Frequency
100 MHz
Multiplier
25x
L1 Cache
80K (per core)
L2 Cache
1MB (per core)
L3 Cache
64MB (shared)
Unlocked Multiplier
Yes

Package

Fabrication Process
4 nm
TDP (PL1)
55-75 W (configurable)
Max. Boost TDP (PL2)
101 W
Socket
FL1
Peak Temperature
100°C

iGPU

Integrated Graphics
Radeon 610M
GPU Base Clock
400 MHz
GPU Boost Clock
2200 MHz
Shading Units
128
TMUs
8
ROPs
4
Execution Units
2
TGP
15 W

Memory Support

Memory Types
- DDR5-5600
Max. Memory Size
96 GB
Memory Channels
2
ECC Support
Yes

Misc

Official Site
AMD Ryzen 9 9955HX official page
PCI Express Version
5.0
PCI Express Lanes
28
Technologies
- Memory: AMD EXPO - Compute: AVX-512, BMI1, BMI2, F16C, SHA - Performance: Precision Boost 2, Precision Boost OD, SMT - Virtualization: AMD-V - Security: EVP, SMAP, SMEP

Specifications compiled from NanoReview. Last updated 2026-09-29.

More processors

View all →
99
Apple M5 Max (32-сore GPU)
Apple

Apple M5 Max (32-сore GPU)

  • Cores18
  • Threads18
  • SocketApple M-Socket
  • Process3 nm
Laptop CPU
98
Apple M5 Max (40-сore GPU)
Apple

Apple M5 Max (40-сore GPU)

  • Cores18
  • Threads18
  • TDP100 W
  • SocketApple M-Socket
Laptop CPU
96
Apple M5 Pro (18-Core)
Apple

Apple M5 Pro (18-Core)

  • Cores18
  • Threads18
  • TDP72 W
  • SocketApple M-Socket
Laptop CPU
94
Apple M5 Pro (15-Core)
Apple

Apple M5 Pro (15-Core)

  • Cores15
  • Threads15
  • TDP62 W
  • SocketApple M-Socket
Laptop CPU