Ryzen 9 7945HX vs Ryzen Threadripper PRO 3975WX

VS

Aggregate performance score

Ryzen Threadripper PRO 3975WX
2020
32 cores / 64 threads, 280 Watt
39.33
+14.3%
Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
34.41

Ryzen Threadripper PRO 3975WX outperforms Ryzen 9 7945HX by a moderate 14% based on our aggregate benchmark results.

Primary details

Comparing Ryzen Threadripper PRO 3975WX and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking68110
Place by popularitynot in top-100not in top-100
Market segmentServerLaptop
SeriesAMD Ryzen Threadripperno data
Power efficiency13.2959.21
Architecture codenameMatisse (2019−2020)Dragon Range-HX (Zen 4) (2023−2024)
Release date14 July 2020 (4 years ago)4 January 2023 (1 year ago)

Detailed specifications

Ryzen Threadripper PRO 3975WX and Ryzen 9 7945HX 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 cores32 (Dotriaconta-Core)16 (Hexadeca-Core)
Threads6432
Base clock speed3.5 GHz2.5 GHz
Boost clock speed4.2 GHz5.4 GHz
Multiplier35no data
L1 cache64K (per core)64K (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache128 MB64 MB (shared)
Chip lithography7 nm, 12 nmCCD = 5 nm, I/O = 6 nm
Die size74 mm22x 71 mm2
Maximum core temperature95 °C100 °C
Maximum case temperature (TCase)95 °Cno data
Number of transistors3,800 million13,140 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen Threadripper PRO 3975WX and Ryzen 9 7945HX 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
SocketsWRX8FL1
Power consumption (TDP)280 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper PRO 3975WX and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 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 Threadripper PRO 3975WX and Ryzen 9 7945HX are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 3975WX and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5
Maximum memory size2 TiBno data
Maximum memory bandwidth204.8 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card-AMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper PRO 3975WX and Ryzen 9 7945HX.

PCIe version4.05.0
PCI Express lanes12828

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 Threadripper PRO 3975WX 39.33
+14.3%
Ryzen 9 7945HX 34.41

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 Threadripper PRO 3975WX 62477
+14.3%
Ryzen 9 7945HX 54653

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 Threadripper PRO 3975WX 1633
Ryzen 9 7945HX 2735
+67.5%

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 Threadripper PRO 3975WX 14690
Ryzen 9 7945HX 15897
+8.2%

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 Threadripper PRO 3975WX 5884
Ryzen 9 7945HX 8462
+43.8%

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 Threadripper PRO 3975WX 53924
Ryzen 9 7945HX 71611
+32.8%

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

Ryzen Threadripper PRO 3975WX 16923
Ryzen 9 7945HX 19820
+17.1%

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 Threadripper PRO 3975WX 3.63
Ryzen 9 7945HX 1.99
+82.4%

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 Threadripper PRO 3975WX 52
Ryzen 9 7945HX 62
+17.9%

Cinebench 15 64-bit multi-core

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

Ryzen Threadripper PRO 3975WX 7053
+27.7%
Ryzen 9 7945HX 5521

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 Threadripper PRO 3975WX 201
Ryzen 9 7945HX 308
+53.2%

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 Threadripper PRO 3975WX 2.19
Ryzen 9 7945HX 3.65
+66.7%

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 Threadripper PRO 3975WX 27
Ryzen 9 7945HX 27.7
+2.6%

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 Threadripper PRO 3975WX 193
Ryzen 9 7945HX 236
+22%

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 Threadripper PRO 3975WX 268
Ryzen 9 7945HX 369
+37.6%

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 Threadripper PRO 3975WX 6530
Ryzen 9 7945HX 14532
+123%

Geekbench 5.5 Multi-Core

Ryzen Threadripper PRO 3975WX 28798
+45.4%
Ryzen 9 7945HX 19802

Blender(-)

Ryzen Threadripper PRO 3975WX 69
Ryzen 9 7945HX 94
+35.4%

Geekbench 5.5 Single-Core

Ryzen Threadripper PRO 3975WX 1285
Ryzen 9 7945HX 2124
+65.3%

7-Zip Single

Ryzen Threadripper PRO 3975WX 5140
Ryzen 9 7945HX 7381
+43.6%

7-Zip

Ryzen Threadripper PRO 3975WX 141386
+0.7%
Ryzen 9 7945HX 140471

WebXPRT 3

Ryzen Threadripper PRO 3975WX 198
Ryzen 9 7945HX 351
+77.3%

Gaming performance

Pros & cons summary


Performance score 39.33 34.41
Recency 14 July 2020 4 January 2023
Physical cores 32 16
Threads 64 32
Power consumption (TDP) 280 Watt 55 Watt

Ryzen Threadripper PRO 3975WX has a 14.3% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Ryzen 9 7945HX, on the other hand, has an age advantage of 2 years, and 409.1% lower power consumption.

The Ryzen Threadripper PRO 3975WX is our recommended choice as it beats the Ryzen 9 7945HX in performance tests.

Be aware that Ryzen Threadripper PRO 3975WX is a server/workstation processor while Ryzen 9 7945HX is a notebook one.


Should you still have questions on choice between Ryzen Threadripper PRO 3975WX and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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AMD Ryzen Threadripper PRO 3975WX
Ryzen Threadripper PRO 3975WX
AMD Ryzen 9 7945HX
Ryzen 9 7945HX

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