Ryzen 5 8645HS vs Ryzen 5 6600HS

VS

Aggregate performance score

Ryzen 5 6600HS
2022
6 cores / 12 threads, 35 Watt
11.95
Ryzen 5 8645HS
2023
6 cores / 12 threads, 45 Watt
14.47
+21.1%

Ryzen 5 8645HS outperforms Ryzen 5 6600HS by a significant 21% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 5 6600HS and Ryzen 5 8645HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking650498
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Power efficiency32.2930.41
Architecture codenameRembrandt-HS (Zen 3+) (2022)Hawk Point-HS (Zen 4) (2023−2024)
Release dateJanuary 2022 (2 years ago)6 December 2023 (1 year ago)

Detailed specifications

Ryzen 5 6600HS 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 cores6 (Hexa-Core)6 (Hexa-Core)
Threads1212
Base clock speed3.3 GHz4.3 GHz
Boost clock speed4.5 GHz5 GHz
L1 cache64K (per core)64 KB (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache16 MB (shared)16 MB (shared)
Chip lithography6 nm4 nm
Die size208 mm2178 mm2
Maximum core temperature95 °C100 °C
Number of transistorsno data25,000 million
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on Ryzen 5 6600HS 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 configuration11
SocketFP7FP8
Power consumption (TDP)35 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 5 6600HS and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHARyzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 5 6600HS and Ryzen 5 8645HS are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 5 6600HS 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 660M ( - 1900 MHz)AMD Radeon 760M ( - 2600 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 5 6600HS and Ryzen 5 8645HS.

PCIe version4.04.0
PCI Express lanes2020

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 5 6600HS 11.95
Ryzen 5 8645HS 14.47
+21.1%

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 5 6600HS 18975
Ryzen 5 8645HS 22980
+21.1%

Cinebench 15 64-bit multi-core

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

Ryzen 5 6600HS 1656
Ryzen 5 8645HS 2094
+26.4%

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 5 6600HS 235
Ryzen 5 8645HS 270
+14.9%

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 5 6600HS 7.7
Ryzen 5 8645HS 11
+42.9%

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 5 6600HS 5207
Ryzen 5 8645HS 6695
+28.6%

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 5 6600HS 93
Ryzen 5 8645HS 122
+30.4%

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 5 6600HS 237
Ryzen 5 8645HS 282
+19%

Geekbench 5.5 Multi-Core

Ryzen 5 6600HS 7195
Ryzen 5 8645HS 9420
+30.9%

Blender(-)

Ryzen 5 6600HS 328
+36.1%
Ryzen 5 8645HS 241

Geekbench 5.5 Single-Core

Ryzen 5 6600HS 1493
Ryzen 5 8645HS 1915
+28.3%

7-Zip Single

Ryzen 5 6600HS 5318
Ryzen 5 8645HS 6190
+16.4%

7-Zip

Ryzen 5 6600HS 44476
Ryzen 5 8645HS 55608
+25%

WebXPRT 3

Ryzen 5 6600HS 234
Ryzen 5 8645HS 295
+26.1%

Gaming performance

Pros & cons summary


Performance score 11.95 14.47
Integrated graphics card 16.31 14.91
Chip lithography 6 nm 4 nm
Power consumption (TDP) 35 Watt 45 Watt

Ryzen 5 6600HS has 9.4% faster integrated GPU, and 28.6% lower power consumption.

Ryzen 5 8645HS, on the other hand, has a 21.1% higher aggregate performance score, and a 50% more advanced lithography process.

The Ryzen 5 8645HS is our recommended choice as it beats the Ryzen 5 6600HS in performance tests.


Should you still have questions on choice between Ryzen 5 6600HS and Ryzen 5 8645HS, ask them in Comments section, and we shall answer.

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Community ratings

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Questions & comments

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