Ryzen 9 9955HX3D vs Ryzen 9 8945H

VS

Aggregate performance score

Ryzen 9 8945H
2023
8 cores / 16 threads, 45 Watt
18.80
Ryzen 9 9955HX3D
2025
16 cores / 32 threads, 55 Watt
40.19
+114%

Ryzen 9 9955HX3D outperforms Ryzen 9 8945H by a whopping 114% based on our aggregate benchmark results.

Primary details

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

Place in the ranking35377
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Hawk Point (Zen 4/4c, Ryzen 8040)AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency40.0770.08
DesignerAMDAMD
Architecture codenameHawk Point-HS (Zen 4) (2023−2024)Fire Range-HX (Zen 5) (2025)
Release date6 December 2023 (1 year ago)6 January 2025 (less than a year ago)

Detailed specifications

Ryzen 9 8945H 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 cores8 (Octa-Core)16 (Hexadeca-Core)
Threads1632
Base clock speed4 GHzno data
Boost clock speed5.2 GHz5.4 GHz
L1 cache512 KB1.3 MB
L2 cache8 MB16 MB
L3 cache16 MB128 MB
Chip lithography4 nmno data
Die size178 mm2no data
Maximum core temperature100 °Cno data
64 bit support++

Compatibility

Information on Ryzen 9 8945H 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.

SocketFP7/FP7r2/FP8no data
Power consumption (TDP)45 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 8945H and Ryzen 9 9955HX3D. You'll probably need this information if you require some particular technology.

Instruction set extensionsRyzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SMEno data
AES-NI+-
FMA+-
AVX+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 8945H and Ryzen 9 9955HX3D. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 780M ( - 2800 MHz)AMD 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.

Ryzen 9 8945H 18.80
Ryzen 9 9955HX3D 40.19
+114%

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 8945H 30162
Ryzen 9 9955HX3D 64464
+114%

Gaming performance

Pros & cons summary


Performance score 18.80 40.19
Integrated graphics card 17.52 2.77
Recency 6 December 2023 6 January 2025
Physical cores 8 16
Threads 16 32
Power consumption (TDP) 45 Watt 55 Watt

Ryzen 9 8945H has 532.5% faster integrated GPU, and 22.2% lower power consumption.

Ryzen 9 9955HX3D, on the other hand, has a 113.8% higher aggregate performance score, an age advantage of 1 year, and 100% more physical cores and 100% more threads.

The AMD Ryzen 9 9955HX3D is our recommended choice as it beats the AMD Ryzen 9 8945H in performance tests.

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AMD Ryzen 9 8945H
Ryzen 9 8945H
AMD Ryzen 9 9955HX3D
Ryzen 9 9955HX3D

Other comparisons

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Community ratings

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4.1 19 votes

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4.7 11 votes

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