Ryzen 9 9955HX vs Ryzen 9 7940HX

VS

Aggregate performance score

Ryzen 9 7940HX
2024
16 cores / 32 threads, 55 Watt
33.98
Ryzen 9 9955HX
2025
16 cores / 32 threads, 55 Watt
36.01
+6%

Ryzen 9 9955HX outperforms Ryzen 9 7940HX by a small 6% based on our aggregate benchmark results.

Primary details

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

Place in the ranking134115
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency59.2562.79
DesignerAMDAMD
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Fire Range-HX (Zen 5) (2025)
Release date17 January 2024 (1 year ago)6 January 2025 (less than a year ago)

Detailed specifications

Ryzen 9 7940HX and Ryzen 9 9955HX 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)16 (Hexadeca-Core)
Threads3232
Base clock speed2.4 GHzno data
Boost clock speed5.2 GHz5.4 GHz
L1 cache1 MB1.3 MB
L2 cache16 MB16 MB
L3 cache64 MB64 MB
Chip lithography5 nmno data
Maximum core temperature100 °Cno data
Number of transistors9900 Millionno data
64 bit support++

Compatibility

Information on Ryzen 9 7940HX and Ryzen 9 9955HX 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.

SocketFL1no data
Power consumption (TDP)55 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7940HX and Ryzen 9 9955HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, 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 7940HX and Ryzen 9 9955HX. 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 610M (400 - 2200 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 7940HX 33.98
Ryzen 9 9955HX 36.01
+6%

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 7940HX 54517
Ryzen 9 9955HX 57771
+6%

Geekbench 6.4 Multi-Core

Ryzen 9 7940HX 16094
Ryzen 9 9955HX 19575
+21.6%

Gaming performance

Pros & cons summary


Performance score 33.98 36.01
Recency 17 January 2024 6 January 2025

Ryzen 9 9955HX has a 6% higher aggregate performance score, and an age advantage of 11 months.

Given the minimal performance differences, no clear winner can be declared between AMD Ryzen 9 7940HX and AMD Ryzen 9 9955HX.

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AMD Ryzen 9 7940HX
Ryzen 9 7940HX
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Community ratings

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4.2 129 votes

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