Ryzen 5 8645HS vs Ryzen 5 7640HS

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Aggregate performance score

Ryzen 5 7640HS
2023
6 cores / 12 threads, 35 Watt
15.01
+1.1%

Ryzen 5 7640HS outperforms Ryzen 5 8645HS by a minimal 1% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 5 7640HS and Ryzen 5 8645HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking488497
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Power efficiency39.1130.09
Architecture codenamePhoenix-HS (Zen 4) (2023)Hawk Point-HS (Zen 4) (2023−2024)
Release dateJanuary 2023 (1 year ago)6 December 2023 (less than a year ago)

Detailed specifications

Ryzen 5 7640HS 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 speed4.3 GHz4.3 GHz
Boost clock speed5 GHz5 GHz
L1 cache64K (per core)64 KB (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache16 MB (shared)16 MB (shared)
Chip lithography4 nm4 nm
Die size178 mm2178 mm2
Maximum core temperature100 °C100 °C
Number of transistors25,000 million25,000 million
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on Ryzen 5 7640HS 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
SocketFP8FP8
Power consumption (TDP)35 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 5 7640HS and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsRyzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3Ryzen 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 7640HS and Ryzen 5 8645HS are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 5 7640HS 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 cardAMD Radeon 760MAMD Radeon 760M

Peripherals

Specifications and connection of peripherals supported by Ryzen 5 7640HS 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 7640HS 15.01
+1.1%
Ryzen 5 8645HS 14.85

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 7640HS 22972
+1.1%
Ryzen 5 8645HS 22733

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 7640HS 2079
Ryzen 5 8645HS 2094
+0.7%

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 7640HS 271
+0.4%
Ryzen 5 8645HS 270

Geekbench 5.5 Multi-Core

Ryzen 5 7640HS 9355
Ryzen 5 8645HS 9420
+0.7%

Blender(-)

Ryzen 5 7640HS 245
+1.7%
Ryzen 5 8645HS 241

Geekbench 5.5 Single-Core

Ryzen 5 7640HS 1941
+1.4%
Ryzen 5 8645HS 1915

7-Zip Single

Ryzen 5 7640HS 6465
+4.4%
Ryzen 5 8645HS 6190

7-Zip

Ryzen 5 7640HS 54954
Ryzen 5 8645HS 55608
+1.2%

WebXPRT 3

Ryzen 5 7640HS 316
+7.1%
Ryzen 5 8645HS 295

Gaming performance

Pros & cons summary


Performance score 15.01 14.85
Power consumption (TDP) 35 Watt 45 Watt

Ryzen 5 7640HS has a 1.1% higher aggregate performance score, and 28.6% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Ryzen 5 7640HS and Ryzen 5 8645HS.


Should you still have questions on choice between Ryzen 5 7640HS and Ryzen 5 8645HS, ask them in Comments section, and we shall answer.

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AMD Ryzen 5 7640HS
Ryzen 5 7640HS
AMD Ryzen 5 8645HS
Ryzen 5 8645HS

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

Here you can ask a question about Ryzen 5 7640HS or Ryzen 5 8645HS, agree or disagree with our judgements, or report an error or mismatch.