Cores: 8L3 cache: 16MB (shared)TDP: 35-54 W Transistor size: 4 nm
Ryzen 7 H 255 - laptop processor produced by Amd for socket FP8 that has 8 cores and 16 threads. The base clock frequency of the CPU is 3800 MHz, but due to Turbo Core technology, it can perform up to 4900 MHz. The size of the L3 cache is 16 MB. Please note that this chip has integrated graphics Radeon 780M.
Single-Core Performance
69
Multi-Core Performance
42
NanoReview Final Score
61
Compare AMD Ryzen 7 H 255 with other CPUs
Test in Benchmarks
Performance test of AMD Ryzen 7 H 255 in benchmarks
Cinebench
Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
100
Cinebench 2024 (Multi)
923
GeekBench v6
The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
2551
Geekbench 6 (Multi-Core)
12667
File compression
1020 MB/sec
Clang compilation
99.8 Klines/sec
HTML 5 Browser
255.5 pages/sec
PDF Renderer
378.2 Mpixels/sec
Text processing
259.2 pages/sec
Background blur
61.1 images/sec
Photo processing
99.7 images/sec
Ray tracing
21.5 Mpixels/sec
PassMark
Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
3655
Passmark CPU (Multi-Core)
28112
Integer math
96 GOps/sec
Floating point math
59.2 GOps/sec
Find prime numbers
85M Primes/sec
Random string sorting
41.8M Strings/sec
Data encryption
20.3 GBytes/sec
Data compression
344.3 MBytes/sec
Physics
1349 Frames/sec
Extended instructions
25.6B Matrices/sec
Sources:
PassMark
[3]
–
375
samples
Blender
3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Performance Per Watt
Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt
17.1 PPW
Geekbench 6 Multi / Watt
234.6 PPW
Passmark CPU Mark / Watt
520.6 PPW
Blender / Watt
4.1 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Specifications
Ryzen 7 H 255 technical specifications
Vendor
Amd
Released
August 4, 2025
Type
Laptop
Instruction Set
x86-64
Codename
Zen 4 (Hawk Point)
Integrated GPU
Radeon 780M
Performance Cores
P-Cores
8
P-Threads
16
Base Frequency (P)
3.8 GHz
Turbo Boost Frequency (P)
4.9 GHz
Total
Total Cores
8
Total Threads
16
Bus Frequency
100 MHz
Multiplier
38x
L1 Cache
64K (per core)
L2 Cache
1MB (per core)
L3 Cache
16MB (shared)
Unlocked Multiplier
No
Transistors
25 billions
Fabrication Process
4 nm
TDP (PL1)
35-54 W (configurable)
Socket
FP8
Peak Temperature
100°C
Integrated Graphics
Radeon 780M
GPU Base Clock
800 MHz
GPU Boost Clock
2600 MHz
Shading Units
768
TMUs
48
ROPs
32
Execution Units
12
TGP
15 W
See also:
Radeon 780M – integrated graphics of AMD Ryzen 7 H 255
Memory Types
- DDR5-5600
Max. Memory Size
256 GB
Memory Channels
2
ECC Support
No
PCI Express Version
4.0
PCI Express Lanes
20
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