Ryzen 9 9955HX3D vs Ultra 7 265KF

VS

Aggregate performance score

Core Ultra 7 265KF
2024
20 cores / 20 threads, 125 Watt
36.73
Ryzen 9 9955HX3D
2025
16 cores / 32 threads, 55 Watt
40.19
+9.4%

Ryzen 9 9955HX3D outperforms Core Ultra 7 265KF by a small 9% based on our aggregate benchmark results.

Primary details

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

Place in the ranking10377
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation99.14no data
Market segmentDesktop processorLaptop
Seriesno dataAMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency28.1872.42
DesignerIntelAMD
ManufacturerTSMCno data
Architecture codenameArrow Lake-S (2024−2025)Fire Range-HX (Zen 5) (2025)
Release date24 October 2024 (less than a year ago)6 January 2025 (less than a year ago)
Launch price (MSRP)$379no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Performance to price scatter graph

Detailed specifications

Core Ultra 7 265KF and Ryzen 9 9955HX3D 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 cores20 (Icosa-Core)16 (Hexadeca-Core)
Performance-cores8no data
Efficient-cores12no data
Threads2032
Base clock speed3.9 GHzno data
Boost clock speed5.5 GHz5.4 GHz
L1 cache112 KB (per core)1.3 MB
L2 cache3 MB (per core)16 MB
L3 cache30 MB (shared)128 MB
Chip lithography3 nmno data
Die size243 mm2no data
Number of transistors17,800 millionno data
64 bit support++
Unlocked multiplier+-

Compatibility

Information on Core Ultra 7 265KF and Ryzen 9 9955HX3D 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 configuration1no data
SocketFCLGA1851no data
Power consumption (TDP)125 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 7 265KF and Ryzen 9 9955HX3D. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2no data
AES-NI+-
AVX+-
vPro+no data
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
Turbo Boost Technology2.0no data
Idle States+no data
Thermal Monitoring+-
SIPP+-
Turbo Boost Max 3.0+no data
Deep Learning Boost+-
Supported AI Software FrameworksOpenVINO™, WindowsML, DirectML, ONNX RT, WebNN-

Security technologies

Core Ultra 7 265KF and Ryzen 9 9955HX3D technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Secure Key+no data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 7 265KF and Ryzen 9 9955HX3D are enumerated here.

VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 265KF and Ryzen 9 9955HX3D. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5-6400no data
Maximum memory size256 GBno data
Max memory channels2no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AAMD Radeon 610M ( - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Core Ultra 7 265KF and Ryzen 9 9955HX3D.

PCIe version5.0 and 4.0no data
PCI Express lanes20no data

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.

Ultra 7 265KF 36.73
Ryzen 9 9955HX3D 40.19
+9.4%

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.

Ultra 7 265KF 58927
Ryzen 9 9955HX3D 64464
+9.4%

Gaming performance

Pros & cons summary


Performance score 36.73 40.19
Recency 24 October 2024 6 January 2025
Physical cores 20 16
Threads 20 32
Power consumption (TDP) 125 Watt 55 Watt

Ultra 7 265KF has 25% more physical cores.

Ryzen 9 9955HX3D, on the other hand, has a 9.4% higher aggregate performance score, an age advantage of 2 months, 60% more threads, and 127.3% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Intel Core Ultra 7 265KF and AMD Ryzen 9 9955HX3D.

Note that Core Ultra 7 265KF is a desktop processor while Ryzen 9 9955HX3D is a notebook one.

Vote for your favorite

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


Intel Core Ultra 7 265KF
Core Ultra 7 265KF
AMD Ryzen 9 9955HX3D
Ryzen 9 9955HX3D

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.


4.2 113 votes

Rate Core Ultra 7 265KF on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.9 8 votes

Rate Ryzen 9 9955HX3D on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Comments

Here you can give us your opinion about processors Core Ultra 7 265KF and Ryzen 9 9955HX3D, agree or disagree with our ratings, or report bugs or inaccuracies on the site.