Ryzen 9 9955HX3D vs Pentium III 1400

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Aggregate performance score

Pentium III 1400
2001
1 core / 1 thread, 31 Watt
0.12
Ryzen 9 9955HX3D
2025
16 cores / 32 threads, 55 Watt
38.97
+32375%

Ryzen 9 9955HX3D outperforms Pentium III 1400 by a whopping 32375% based on our aggregate benchmark results.

Primary details

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

Place in the ranking354988
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataAMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency0.1527.40
DesignerIntelAMD
Architecture codenameTualatin (2000−2002)Fire Range-HX (Zen 5) (2025)
Release dateDecember 2001 (23 years ago)6 January 2025 (less than a year ago)

Detailed specifications

Pentium III 1400 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 cores1 (Single-Core)16 (Hexadeca-Core)
Threads132
Boost clock speed1.4 GHz5.4 GHz
L1 cache8 KB1.3 MB
L2 cache256 KB16 MB
L3 cache0 KB128 MB
Chip lithography130 nmno data
Die size80 mm2no data
Maximum case temperature (TCase)69 °Cno data
Number of transistors44 millionno data
64 bit support-+
Windows 11 compatibility-no data

Compatibility

Information on Pentium III 1400 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
Socket370no data
Power consumption (TDP)31 Watt55 Watt

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 610M ( - 2200 MHz)

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.

Pentium III 1400 0.12
Ryzen 9 9955HX3D 38.97
+32375%

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.

Pentium III 1400 193
Ryzen 9 9955HX3D 62650
+32361%

Gaming performance

Pros & cons summary


Performance score 0.12 38.97
Physical cores 1 16
Threads 1 32
Power consumption (TDP) 31 Watt 55 Watt

Pentium III 1400 has 77.4% lower power consumption.

Ryzen 9 9955HX3D, on the other hand, has a 32375% higher aggregate performance score, and 1500% more physical cores and 3100% more threads.

The AMD Ryzen 9 9955HX3D is our recommended choice as it beats the Intel Pentium III 1400 in performance tests.

Note that Pentium III 1400 is a desktop processor while Ryzen 9 9955HX3D is a notebook one.

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Intel Pentium III 1400
Pentium III 1400
AMD Ryzen 9 9955HX3D
Ryzen 9 9955HX3D

Other comparisons

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Community ratings

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


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