Ryzen 9 7945HX vs Ryzen 9 7940HS

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Aggregate performance score

Ryzen 9 7940HS
2023
8 cores / 16 threads, 35 Watt
19.72
Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
35.48
+79.9%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by an impressive 80% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 7940HS and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking26090
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Architecture codenamePhoenix-HS (Zen 4)Dragon Range-HX (Zen 4)
Release dateJanuary 2023 (1 year ago)4 January 2023 (1 year ago)

Detailed specifications

Ryzen 9 7940HS 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 cores8 (Octa-Core)16 (Hexadeca-Core)
Threads1632
Base clock speed4 GHz2.5 GHz
Boost clock speed5.2 GHz5.4 GHz
L1 cache64K (per core)64K (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache16 MB (shared)64 MB (shared)
Chip lithography4 nmCCD = 5 nm, I/O = 6 nm
Die size178 mm22x 71 mm2
Maximum core temperature100 °C100 °C
Number of transistors25,000 million13,140 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplierNoYes

Compatibility

Information on Ryzen 9 7940HS 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
SocketFP8FL1
Power consumption (TDP)35 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7940HS and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsDDR5-5600/LPDDR5x-7500 RAM (incl. ECC), PCIe 4, Ryzen 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, SMEDDR5-5200 RAM, PCIe 5, 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++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7940HS and Ryzen 9 7945HX are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940HS and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon 780MAMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7940HS and Ryzen 9 7945HX.

PCIe version4.05.0
PCI Express lanes2028

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 7940HS 19.72
Ryzen 9 7945HX 35.48
+79.9%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 80% based on our aggregate benchmark results.


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.

Benchmark coverage: 68%

Ryzen 9 7940HS 30495
Ryzen 9 7945HX 54871
+79.9%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 80% in Passmark.

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.

Benchmark coverage: 42%

Ryzen 9 7940HS 2467
Ryzen 9 7945HX 2735
+10.9%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 11% in GeekBench 5 Single-Core.

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.

Benchmark coverage: 42%

Ryzen 9 7940HS 11529
Ryzen 9 7945HX 15831
+37.3%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 37% in GeekBench 5 Multi-Core.

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.

Benchmark coverage: 20%

Ryzen 9 7940HS 7881
Ryzen 9 7945HX 8481
+7.6%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 8% in Cinebench 10 32-bit single-core.

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.

Benchmark coverage: 19%

Ryzen 9 7940HS 48914
Ryzen 9 7945HX 71582
+46.3%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 46% in Cinebench 10 32-bit multi-core.

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.

Benchmark coverage: 18%

Ryzen 9 7940HS 2.67
+83.5%
Ryzen 9 7945HX 4.9

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 84% in wPrime 32.

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.

Benchmark coverage: 17%

Ryzen 9 7940HS 30
Ryzen 9 7945HX 64
+112%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 112% in Cinebench 11.5 64-bit multi-core.

Cinebench 15 64-bit multi-core

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

Benchmark coverage: 15%

Ryzen 9 7940HS 2663
Ryzen 9 7945HX 5541
+108%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 108% in Cinebench 15 64-bit multi-core.

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.

Benchmark coverage: 15%

Ryzen 9 7940HS 284
Ryzen 9 7945HX 307
+8.1%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 8% in Cinebench 15 64-bit single-core.

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.

Benchmark coverage: 14%

Ryzen 9 7940HS 3.4
Ryzen 9 7945HX 3.65
+7.4%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 7% in Cinebench 11.5 64-bit single-core.

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.

Benchmark coverage: 13%

Ryzen 9 7940HS 15
Ryzen 9 7945HX 25.3
+69.2%

Ryzen 9 7945HX outperforms Ryzen 9 7940HS by 69% in TrueCrypt AES.

Gaming performance

Pros & cons summary


Performance score 19.72 35.48
Integrated graphics card 18.37 2.86
Physical cores 8 16
Threads 16 32
Power consumption (TDP) 35 Watt 55 Watt

The Ryzen 9 7945HX is our recommended choice as it beats the Ryzen 9 7940HS in performance tests.


Should you still have questions on choice between Ryzen 9 7940HS and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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