Ryzen 5 8645HS: specs and benchmarks

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Aggregate performance score

Ryzen 5 8645HS provides good benchmark performance at 14.87% of a leader's which is a 96-core Ryzen Threadripper PRO 7995WX.

Summary

AMD started Ryzen 5 8645HS sales 6 December 2023. This is a Hawk Point-HS (Zen 4) architecture notebook processor primarily aimed at office systems. It has 6 cores and 12 threads, and is based on 4 nm manufacturing technology, with a maximum frequency of 5000 MHz and a locked multiplier.

Compatibility-wise, this is AMD Socket FP8 processor with a TDP of 45 Watt. It supports DDR5 memory.

Primary details

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

Place in the ranking497
Place by popularitynot in top-100
Market segmentLaptop
Power efficiency30.13of 100.00 (Core Ultra 7 164U)
Architecture codenameHawk Point-HS (Zen 4) (2023−2024)
Release date6 December 2023 (less than a year ago)

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores6 (Hexa-Core)
Threads12
Base clock speed4.3 GHzof 4.7 GHz (FX-9590)
Boost clock speed5 GHzof 50 MHz (i486DX-50)
L1 cache64 KB (per core)of 80 KB (EPYC 9965)
L2 cache1 MB (per core)of 2 MB (Xeon 6980P)
L3 cache16 MB (shared)of 1152 MB (EPYC 9684X)
Chip lithography4 nmof 3 nm (Apple M3 Max 16-Core)
Die size178 mm2
Maximum core temperature100 °Cof 110 °C (Atom x7-E3950)
Number of transistors25,000 millionof 135,240 million (EPYC 9684X)
64 bit support+

Compatibility

Information on Ryzen 5 8645HS compatibility with other computer components and devices: 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 configuration1of 8 (Opteron 842)
SocketFP8
Power consumption (TDP)45 Wattof 3100 ‑ 4500 (Ryzen 7 7435H)

Technologies and extensions

Technological capabilities and additional instructions supported by 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, SSSE3
AES-NI+
AVX+
Precision Boost 2+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V+

Memory specs

Types, maximum amount and channel number of RAM supported by Ryzen 5 8645HS's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR5

Graphics specifications

General parameters of a GPU integrated into Ryzen 5 8645HS.

Integrated graphics cardAMD Radeon 760M

Peripherals

Specifications and connection types of supported peripherals.

PCIe version4.0of 5.0 (Core i9-12900K)
PCI Express lanes20of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Ryzen 5 8645HS. Overall benchmark performance 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 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 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 5 8645HS 14055

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 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 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 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 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 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 5 8645HS 6695

Geekbench 5.5 Multi-Core

Ryzen 5 8645HS 9420

Blender(-)

Ryzen 5 8645HS 241

Geekbench 5.5 Single-Core

Ryzen 5 8645HS 1915

7-Zip Single

Ryzen 5 8645HS 6190

7-Zip

Ryzen 5 8645HS 55608

WebXPRT 3

Ryzen 5 8645HS 295

Gaming performance

Closest competitors

Ryzen 5 8645HS's performance relative to its closest rivals among notebook CPUs.


Intel equivalent

According to our data, the closest Intel alternative to Ryzen 5 8645HS is Core i9-11980HK, which is nearly equal in speed and higher by 1 position in our ranking.

Here are some closest Intel rivals to Ryzen 5 8645HS:

Ryzen 5 8645HS 100

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Recommended GPUs

People consider these graphics cards to be good for Ryzen 5 8645HS, according to our PC configuration statistics.

These are the fastest graphics cards for Ryzen 5 8645HS in our user configuration statistics. There is a total of 878 configurations using Ryzen 5 8645HS in our database.

All comparisons with Ryzen 5 8645HS

Community ratings

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


4.1 115 votes

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Questions & comments

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