Ryzen 5 8645HS vs Ryzen 9 8945H

VS

Aggregate performance score

Ryzen 9 8945H
2023
8 cores / 16 threads, 45 Watt
19.58
+31.7%

Ryzen 9 8945H outperforms Ryzen 5 8645HS by a substantial 32% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 8945H and Ryzen 5 8645HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking307497
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Hawk Point (Zen 4/4c, Ryzen 8040)no data
Power efficiency39.6830.09
Architecture codenameHawk Point-HS (Zen 4) (2023−2024)Hawk Point-HS (Zen 4) (2023−2024)
Release date6 December 2023 (less than a year ago)6 December 2023 (less than a year ago)

Detailed specifications

Ryzen 9 8945H and Ryzen 5 8645HS 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)6 (Hexa-Core)
Threads1612
Base clock speed4 GHz4.3 GHz
Boost clock speed5.2 GHz5 GHz
L1 cache512 KB64 KB (per core)
L2 cache8 MB1 MB (per core)
L3 cache16 MB16 MB (shared)
Chip lithography4 nm4 nm
Die size178 mm2178 mm2
Maximum core temperature100 °C100 °C
Number of transistorsno data25,000 million
64 bit support++

Compatibility

Information on Ryzen 9 8945H and Ryzen 5 8645HS 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 configurationno data1
SocketFP7/FP7r2/FP8FP8
Power consumption (TDP)45 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 8945H and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsRyzen 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, SMERyzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI++
FMA+-
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 8945H and Ryzen 5 8645HS are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 8945H and Ryzen 5 8645HS. 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 760M

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 8945H and Ryzen 5 8645HS.

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 8945H 19.58
+31.7%
Ryzen 5 8645HS 14.87

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 8945H 29965
+31.7%
Ryzen 5 8645HS 22750

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 9 8945H 15476
+10.1%
Ryzen 5 8645HS 14055

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 8945H 2.63
+25.1%
Ryzen 5 8645HS 3.29

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 8945H 2691
+28.5%
Ryzen 5 8645HS 2094

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 8945H 284
+5.2%
Ryzen 5 8645HS 270

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 8945H 15.1
+37.3%
Ryzen 5 8645HS 11

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 8945H 150
+23.2%
Ryzen 5 8645HS 122

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 8945H 292
+3.8%
Ryzen 5 8645HS 282

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 8945H 7542
+12.6%
Ryzen 5 8645HS 6695

Geekbench 5.5 Multi-Core

Ryzen 9 8945H 11980
+27.2%
Ryzen 5 8645HS 9420

Blender(-)

Ryzen 9 8945H 182
Ryzen 5 8645HS 241
+32.4%

Geekbench 5.5 Single-Core

Ryzen 9 8945H 1994
+4.1%
Ryzen 5 8645HS 1915

7-Zip Single

Ryzen 9 8945H 6664
+7.7%
Ryzen 5 8645HS 6190

7-Zip

Ryzen 9 8945H 72851
+31%
Ryzen 5 8645HS 55608

WebXPRT 3

Ryzen 9 8945H 309
+4.6%
Ryzen 5 8645HS 295

Gaming performance

Pros & cons summary


Performance score 19.58 14.87
Integrated graphics card 18.28 15.05
Physical cores 8 6
Threads 16 12

Ryzen 9 8945H has a 31.7% higher aggregate performance score, 21.5% faster integrated GPU, and 33.3% more physical cores and 33.3% more threads.

The Ryzen 9 8945H is our recommended choice as it beats the Ryzen 5 8645HS in performance tests.


Should you still have questions on choice between Ryzen 9 8945H and Ryzen 5 8645HS, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 8945H
Ryzen 9 8945H
AMD Ryzen 5 8645HS
Ryzen 5 8645HS

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