AMD
AMD Ryzen 9 9955HX
Fire Range drops desktop Zen 5 silicon into gaming laptops: 16 cores, 32 threads, 64MB of L3 and a 5.4GHz boost. Multi-threaded throughput is the highest of any x86 laptop chip, though the tiny Radeon 610M means a discrete GPU is mandatory.
Pros
- 16 full Zen 5 cores and 32 threads for rendering and compiling
- 64MB of L3 cache and DDR5-5600 support
- 5.4GHz boost keeps gaming performance top tier
- Clear generational gain over the Ryzen 9 7945HX
Cons
- Radeon 610M iGPU is display-out only in practice
- 55-75W sustained power drains batteries fast
- Requires a thick desktop-replacement chassis
- No meaningful NPU for Copilot+ workloads
Very good
Computed from specs & benchmarks via our public methodology.
Full specifications
Everything we track for the AMD Ryzen 9 9955HX
General
- Announced
- 2025
- Process
- 4 nm
- Base TDP
- 55 W
- Max TDP
- 75 W
Cores & Clocks
- Cores
- 16
- Performance cores
- 16
- Threads
- 32
- Base clock
- 2.5 GHz
- Boost clock
- 5.4 GHz
- L3 cache
- 64 MB
Integrated GPU
- iGPU
- AMD Radeon 610M
- iGPU clock
- 2,200 MHz
Memory
- Memory support
- DDR5-5600
- Max memory
- 256 GB
Benchmarks
- Geekbench 6 (single)
- 3,080
- Geekbench 6 (multi)
- 19,500
- Cinebench R23 (single)
- 2,150
- Cinebench R23 (multi)
- 37,500
- PassMark
- 62,000
Quick answers
Is the AMD Ryzen 9 9955HX good in 2026?
The AMD Ryzen 9 9955HX earns an Inno Score of 72.4/100 (“Very good”) based on its specs and benchmark results. Fire Range drops desktop Zen 5 silicon into gaming laptops: 16 cores, 32 threads, 64MB of L3 and a 5.4GHz boost. Multi-threaded throughput is the highest of any x86 laptop chip, though the tiny Radeon 610M means a discrete GPU is mandatory.
What are the key specs of the AMD Ryzen 9 9955HX?
Cores: 16 · Threads: 32 · Boost clock: 5.4 GHz · Base TDP: 55 W
What are the closest alternatives to the AMD Ryzen 9 9955HX?
Its closest rivals on InnoReviews are Intel Core Ultra 9 275HX, AMD Ryzen AI Max+ 395, Apple M4 Pro (14-core) — open the comparison pages for a spec-by-spec breakdown.
