Ryzen 5 8645HS: specs and benchmarks
Aggregate performance score
Ryzen 5 8645HS provides good benchmark performance at 14.37% of a leader's which is a 96-core EPYC 9655P.
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 ranking | 499 | |
| Place by popularity | not in top-100 | |
| Market segment | Laptop | |
| Power efficiency | 30.22 | of 100.00 (Core Ultra 7 164U) |
| Architecture codename | Hawk Point-HS (Zen 4) (2023−2024) | |
| Release date | 6 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 cores | 6 (Hexa-Core) | |
| Threads | 12 | |
| Base clock speed | 4.3 GHz | of 4.7 GHz (Ryzen 9 7900X) |
| Boost clock speed | 5 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 64 KB (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 1 MB (per core) | of 2 MB (Xeon 6980P) |
| L3 cache | 16 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | 4 nm | of 3 nm (Core Ultra 9 285K) |
| Die size | 178 mm2 | |
| Maximum core temperature | 100 °C | of 110 °C (Core Ultra 9 185H) |
| Number of transistors | 25,000 million | of 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 configuration | 1 | of 8 (Xeon Platinum 8454H) |
| Socket | FP8 | |
| Power consumption (TDP) | 45 Watt | of 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 extensions | Ryzen 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 types | DDR5 |
Graphics specifications
General parameters of a GPU integrated into Ryzen 5 8645HS.
| Integrated graphics card | AMD Radeon 760M |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 4.0 | of 5.0 (EPYC 9655P) |
| PCI Express lanes | 20 | of 128 (EPYC 9655P) |
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.
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.
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.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
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.
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.
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.
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.
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.
Geekbench 5.5 Multi-Core
Blender(-)
Geekbench 5.5 Single-Core
7-Zip Single
7-Zip
WebXPRT 3
Send your test results of Ryzen 5 8645HS.
Intel equivalent
According to our data, the closest Intel alternative to Ryzen 5 8645HS is Core Ultra 5 135H, which is nearly equal in speed and higher by 1 position in our ranking.
Here are some closest Intel rivals to Ryzen 5 8645HS:
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 1149 configurations using Ryzen 5 8645HS in our database.
