Ryzen Z1 vs Ryzen 9 9955HX

VS

Aggregate performance score

Ryzen 9 9955HX
2025
16 cores / 32 threads, 55 Watt
35.86
+212%
Ryzen Z1
2023
6 cores / 12 threads, 15 Watt
11.48

Ryzen 9 9955HX outperforms Ryzen Z1 by a whopping 212% based on our aggregate benchmark results.

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking116759
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)Phoenix (Zen 4, Ryzen 7040)
Power efficiency62.5773.45
DesignerAMDAMD
Manufacturerno dataTSMC
Architecture codenameFire Range-HX (Zen 5) (2025)Phoenix (Zen4) (2023)
Release date6 January 2025 (less than a year ago)May 2023 (2 years ago)

Detailed specifications

Ryzen 9 9955HX and Ryzen Z1 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores16 (Hexadeca-Core)6 (Hexa-Core)
Threads3212
Base clock speedno data3.2 GHz
Boost clock speed5.4 GHz4.9 GHz
L1 cache1.3 MB64 KB (per core)
L2 cache16 MB1 MB (per core)
L3 cache64 MB16 MB (shared)
Chip lithographyno data4 nm
Die sizeno data137 mm2
Maximum core temperatureno data100 °C
64 bit support++
Windows 11 compatibilityno data+

Compatibility

Information on Ryzen 9 9955HX and Ryzen Z1 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configurationno data1
Socketno dataFP8
Power consumption (TDP)55 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 9955HX and Ryzen Z1. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 9955HX and Ryzen Z1 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 9955HX and Ryzen Z1. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610M ( - 2200 MHz)AMD Radeon 740M

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 9955HX and Ryzen Z1.

PCIe versionno data4.0
PCI Express lanesno data20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating.

Ryzen 9 9955HX 35.86
+212%
Ryzen Z1 11.48

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.

Ryzen 9 9955HX 57522
+212%
Ryzen Z1 18417

Geekbench 5.5 Multi-Core

Ryzen 9 9955HX 22114
+188%
Ryzen Z1 7674

Gaming performance

Pros & cons summary


Performance score 35.86 11.48
Integrated graphics card 2.77 8.03
Physical cores 16 6
Threads 32 12
Power consumption (TDP) 55 Watt 15 Watt

Ryzen 9 9955HX has a 212.4% higher aggregate performance score, and 166.7% more physical cores and 166.7% more threads.

Ryzen Z1, on the other hand, has 189.9% faster integrated GPU, and 266.7% lower power consumption.

The AMD Ryzen 9 9955HX is our recommended choice as it beats the AMD Ryzen Z1 in performance tests.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD Ryzen 9 9955HX
Ryzen 9 9955HX
AMD Ryzen Z1
Ryzen Z1

Other comparisons

We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.7 6 votes

Rate Ryzen 9 9955HX on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.3 66 votes

Rate Ryzen Z1 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Comments

Here you can give us your opinion about processors Ryzen 9 9955HX and Ryzen Z1, agree or disagree with our ratings, or report bugs or inaccuracies on the site.