Ryzen 9 PRO 8945HS vs Ryzen 9 3900X

VS

Aggregate performance score

Ryzen 9 3900X
2019
12 cores / 24 threads, 105 Watt
20.53
+6.2%
Ryzen 9 PRO 8945HS
2024
8 cores / 16 threads, 45 Watt
19.33

Ryzen 9 3900X outperforms Ryzen 9 PRO 8945HS by a small 6% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 3900X and Ryzen 9 PRO 8945HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking275302
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation21.73no data
Market segmentDesktop processorServer
SeriesAMD Ryzen 9no data
Power efficiency15.5440.65
Architecture codenameMatisse (Zen 2) (2019−2020)Hawk Point-HS (Zen 4) (2023−2024)
Release date7 July 2019 (5 years ago)16 April 2024 (less than a year ago)
Launch price (MSRP)$499no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 9 3900X and Ryzen 9 PRO 8945HS 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 cores12 (Dodeca-Core)8 (Octa-Core)
Threads2416
Base clock speed3.8 GHz4 GHz
Boost clock speed4.6 GHz5.2 GHz
L1 cache768 KB64 KB (per core)
L2 cache6 MB1 MB (per core)
L3 cache64 MB16 MB (shared)
Chip lithography7 nm, 12 nm4 nm
Die sizeno data178 mm2
Maximum core temperature95 °C100 °C
Number of transistors19,200 million25,000 million
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 3900X and Ryzen 9 PRO 8945HS 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 configuration1 (Uniprocessor)1
SocketAM4FP7
Power consumption (TDP)105 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900X and Ryzen 9 PRO 8945HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataRyzen 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, SME
AES-NI++
FMA-+
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900X and Ryzen 9 PRO 8945HS are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900X and Ryzen 9 PRO 8945HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Dual-channelDDR5
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth51.196 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card-AMD Radeon 780M

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900X and Ryzen 9 PRO 8945HS.

PCIe versionno data4.0
PCI Express lanesno data20

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 3900X 20.53
+6.2%
Ryzen 9 PRO 8945HS 19.33

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 3900X 32613
+6.2%
Ryzen 9 PRO 8945HS 30708

Gaming performance

Pros & cons summary


Performance score 20.53 19.33
Recency 7 July 2019 16 April 2024
Physical cores 12 8
Threads 24 16
Chip lithography 7 nm 4 nm
Power consumption (TDP) 105 Watt 45 Watt

Ryzen 9 3900X has a 6.2% higher aggregate performance score, and 50% more physical cores and 50% more threads.

Ryzen 9 PRO 8945HS, on the other hand, has an age advantage of 4 years, a 75% more advanced lithography process, and 133.3% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Ryzen 9 3900X and Ryzen 9 PRO 8945HS.

Note that Ryzen 9 3900X is a desktop processor while Ryzen 9 PRO 8945HS is a server/workstation one.


Should you still have questions on choice between Ryzen 9 3900X and Ryzen 9 PRO 8945HS, ask them in Comments section, and we shall answer.

Vote for your favorite

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AMD Ryzen 9 3900X
Ryzen 9 3900X
AMD Ryzen 9 PRO 8945HS
Ryzen 9 PRO 8945HS

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Community ratings

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