Ryzen 7 7745HX vs Ryzen 9 3950X

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Aggregate performance score

Ryzen 9 3950X
2019
16 cores / 32 threads, 105 Watt
24.37
+18.3%
Ryzen 7 7745HX
2023
8 cores / 16 threads, 55 Watt
20.60

Ryzen 9 3950X outperforms Ryzen 7 7745HX by a moderate 18% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 3950X and Ryzen 7 7745HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking210271
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation18.76no data
Market segmentDesktop processorLaptop
SeriesAMD Ryzen 9no data
Power efficiency21.9635.45
Architecture codenameMatisse (Zen 2) (2019−2020)Dragon Range (Zen 4) (2023)
Release date11 June 2019 (5 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$799no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 9 3950X and Ryzen 7 7745HX 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)8 (Octa-Core)
Threads3216
Base clock speed3.5 GHz3.6 GHz
Boost clock speed4.7 GHz5.1 GHz
L1 cache1 MB64K (per core)
L2 cache8 MB1 MB (per core)
L3 cache64 MB32 MB (shared)
Chip lithography7 nm, 12 nmCCD = 5 nm, I/O = 6 nm
Die size2 x 72 mm + 125 mm (IO-Die) mm271 mm2
Maximum core temperatureno data100 °C
Number of transistors19,200 million6,570 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen 9 3950X and Ryzen 7 7745HX 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
SocketAM4FL1
Power consumption (TDP)105 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3950X and Ryzen 7 7745HX. You'll probably need this information if you require some particular technology.

Instruction set extensions86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2MMX, 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 3950X and Ryzen 7 7745HX are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3950X and Ryzen 7 7745HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Dual-channelDDR5
Maximum memory size128 GBno data
Maximum memory bandwidth51.196 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card-AMD Radeon 610M (400 - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3950X and Ryzen 7 7745HX.

PCIe versionno data5.0
PCI Express lanesno data28

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 3950X 24.37
+18.3%
Ryzen 7 7745HX 20.60

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 3950X 38715
+18.3%
Ryzen 7 7745HX 32722

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Ryzen 9 3950X 1730
Ryzen 7 7745HX 2639
+52.5%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Ryzen 9 3950X 10784
Ryzen 7 7745HX 12882
+19.5%

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Ryzen 9 3950X 6102
Ryzen 7 7745HX 8006
+31.2%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Ryzen 9 3950X 53396
Ryzen 7 7745HX 54762
+2.6%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Ryzen 9 3950X 4.11
Ryzen 7 7745HX 2.28
+80.3%

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

Ryzen 9 3950X 44
+24.6%
Ryzen 7 7745HX 35

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

Ryzen 9 3950X 4002
+34%
Ryzen 7 7745HX 2986

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

Ryzen 9 3950X 209
Ryzen 7 7745HX 295
+40.9%

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

Ryzen 9 3950X 2.37
Ryzen 7 7745HX 3.5
+47.7%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

Ryzen 9 3950X 10.8
Ryzen 7 7745HX 16.4
+51.9%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

Ryzen 9 3950X 7409
Ryzen 7 7745HX 14476
+95.4%

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

Ryzen 9 3950X 168
Ryzen 7 7745HX 173
+3.1%

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

Ryzen 9 3950X 265
Ryzen 7 7745HX 359
+35.3%

Geekbench 5.5 Multi-Core

Ryzen 9 3950X 12363
Ryzen 7 7745HX 12920
+4.5%

Blender(-)

Ryzen 9 3950X 126
Ryzen 7 7745HX 172
+36.3%

Geekbench 5.5 Single-Core

Ryzen 9 3950X 1306
Ryzen 7 7745HX 2054
+57.2%

7-Zip Single

Ryzen 9 3950X 5340
Ryzen 7 7745HX 7260
+35.9%

7-Zip

Ryzen 9 3950X 99467
+25.3%
Ryzen 7 7745HX 79413

WebXPRT 3

Ryzen 9 3950X 239
Ryzen 7 7745HX 347
+45.2%

Gaming performance

Pros & cons summary


Performance score 24.37 20.60
Recency 11 June 2019 4 January 2023
Physical cores 16 8
Threads 32 16
Power consumption (TDP) 105 Watt 55 Watt

Ryzen 9 3950X has a 18.3% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Ryzen 7 7745HX, on the other hand, has an age advantage of 3 years, and 90.9% lower power consumption.

The Ryzen 9 3950X is our recommended choice as it beats the Ryzen 7 7745HX in performance tests.

Note that Ryzen 9 3950X is a desktop processor while Ryzen 7 7745HX is a notebook one.


Should you still have questions on choice between Ryzen 9 3950X and Ryzen 7 7745HX, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 3950X
Ryzen 9 3950X
AMD Ryzen 7 7745HX
Ryzen 7 7745HX

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