Ryzen 9 9900X vs Ryzen 9 7945HX3D

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Aggregate performance score

Ryzen 9 7945HX3D
2023
16 cores / 32 threads, 55 Watt
37.77
+5.4%

Ryzen 9 7945HX3D outperforms Ryzen 9 9900X by a small 5% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 7945HX3D and Ryzen 9 9900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking94107
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data66.77
Market segmentLaptopDesktop processor
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)no data
Power efficiency62.6227.24
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Granite Ridge (2024)
Release date27 July 2023 (1 year ago)15 August 2024 (less than a year ago)
Launch price (MSRP)no data$499

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 9 7945HX3D and Ryzen 9 9900X 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)12 (Dodeca-Core)
Threads3224
Base clock speed2.3 GHz4.4 GHz
Boost clock speed5.4 GHz5.6 GHz
L1 cache64 KB (per core)80 KB (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache128 MB (shared)64 MB (shared)
Chip lithography5 nm4 nm
Die size2x 71 mm22x 70.6 mm2
Maximum core temperature89 °C95 °C
Number of transistors17,840 million16,630 million
64 bit support++
Unlocked multiplier++

Compatibility

Information on Ryzen 9 7945HX3D and Ryzen 9 9900X 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 configuration11
SocketFL1AM5
Power consumption (TDP)55 Watt120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7945HX3D and Ryzen 9 9900X. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataSMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A
AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7945HX3D and Ryzen 9 9900X are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7945HX3D and Ryzen 9 9900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5-5200DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon 610MAMD Radeon Graphics

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7945HX3D and Ryzen 9 9900X.

PCIe version5.05.0
PCI Express lanes2824

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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Ryzen 9 7945HX3D 37.77
+5.4%
Ryzen 9 9900X 35.85

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.

Ryzen 9 7945HX3D 57797
+5.4%
Ryzen 9 9900X 54860

Geekbench 5.5 Multi-Core

Ryzen 9 7945HX3D 19875
Ryzen 9 9900X 21384
+7.6%

Blender(-)

Ryzen 9 7945HX3D 95
Ryzen 9 9900X 97
+2.1%

Geekbench 5.5 Single-Core

Ryzen 9 7945HX3D 2133
Ryzen 9 9900X 2544
+19.3%

7-Zip Single

Ryzen 9 7945HX3D 7573
Ryzen 9 9900X 8020
+5.9%

7-Zip

Ryzen 9 7945HX3D 136201
+11%
Ryzen 9 9900X 122724

WebXPRT 3

Ryzen 9 7945HX3D 480
+20.6%
Ryzen 9 9900X 398

Gaming performance

Pros & cons summary


Performance score 37.77 35.85
Integrated graphics card 2.85 1.98
Recency 27 July 2023 15 August 2024
Physical cores 16 12
Threads 32 24
Chip lithography 5 nm 4 nm
Power consumption (TDP) 55 Watt 120 Watt

Ryzen 9 7945HX3D has a 5.4% higher aggregate performance score, 43.9% faster integrated GPU, 33.3% more physical cores and 33.3% more threads, and 118.2% lower power consumption.

Ryzen 9 9900X, on the other hand, has an age advantage of 1 year, and a 25% more advanced lithography process.

Given the minimal performance differences, no clear winner can be declared between Ryzen 9 7945HX3D and Ryzen 9 9900X.

Be aware that Ryzen 9 7945HX3D is a notebook processor while Ryzen 9 9900X is a desktop one.


Should you still have questions on choice between Ryzen 9 7945HX3D and Ryzen 9 9900X, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 7945HX3D
Ryzen 9 7945HX3D
AMD Ryzen 9 9900X
Ryzen 9 9900X

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Community ratings

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Questions & comments

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