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AMD Ryzen 5 PRO 8645HS

Explore AMD Ryzen 5 PRO 8645HS technical reviews, specifications and benchmark results, with practical context for performance, compatibility and upgrade comparisons.

Last updated: 2026-10-20
7.6/ 10
Technical rating

Very good

AMD Ryzen 5 PRO 8645HS is a Desktop, Laptop processor with 6 cores and 12 threads. It runs at 4.3 GHz and boosts up to 5 GHz. It records a PassMark CPU Mark of 23572 and a single-thread rating of 3840. Its stated TDP is 45 W.

CPU Mark23,572
5 samples
Single Thread3,840
Overall rank#842
of 6,054
Reference price—

Technical assessment

A summary based on specifications and results.

Very good
7.6Very good

AMD Ryzen 5 PRO 8645HS is a Desktop, Laptop processor with 6 cores and 12 threads. It runs at 4.3 GHz and boosts up to 5 GHz. It records a PassMark CPU Mark of 23572 and a single-thread rating of 3840. Its stated TDP is 45 W.

Specification context

What do these specifications mean in practice?

The AMD Ryzen 5 PRO 8645HS is a Desktop released in 2025. Recorded specifications include 6 cores and 12 threads, up to 5.00 GHz turbo, a 45 W reference TDP, a 23,572 CPU Mark. Use these figures to understand its position, then compare the results with your software and the complete platform.

Reading guide

Read the performance results

The 23,572 CPU Mark is a broad overall-performance measure, while the 3,840 single-thread result adds context for less-parallel work. Compare the nearby alternatives on this page and do not treat one score as a verdict for every application.

Platform and compatibility

It uses socket FP7,FP7R2. A matching socket is only the first check; confirm the official motherboard CPU-support list, BIOS revision and board power limits.

Memory and power

Recorded memory support: LPDDR5X-7500. The 45 W TDP helps size the cooling class, but it is not the same as peak wall-power consumption.

FAQ

Common processor questions

What are the key AMD Ryzen 5 PRO 8645HS specifications?

The main recorded details are 6 cores and 12 threads, up to 5.00 GHz turbo, a 45 W reference TDP, a 23,572 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.

Is the AMD Ryzen 5 PRO 8645HS good for gaming?

The product name or CPU Mark alone cannot answer that. Check single-thread performance, core count, the target graphics card, gaming resolution and results from the games you play.

Which motherboards support the AMD Ryzen 5 PRO 8645HS?

Start with FP7,FP7R2 motherboards, then confirm the official CPU-support list and required BIOS revision for the exact board before buying.

How much power does the AMD Ryzen 5 PRO 8645HS use?

The recorded reference TDP is 45 W. Real consumption can be lower or higher depending on power limits, motherboard, workload and cooling.

This guidance interprets recorded specifications and results; it does not claim hands-on device testing. Results can vary with motherboard, power, memory and cooling.

Multi-axis comparison

How does this processor compare?

A direct comparison with nearby processors from the same brand and a similar core count.

5 CPU

Overall and multi-core performance

A higher CPU Mark indicates stronger overall performance.

01AMD Ryzen 5 PRO 8600GEAMD23,707 points
02AMD Ryzen 5 PRO 8645HSThis CPU23,572 points
03Apple M4 10 CoreApple23,565 points
04Intel Core i9-7920X @ 2.90GHzIntel23,548 points
05AMD Ryzen AI 5 440GAMD23,487 points

Single-thread performance

Measures speed in tasks that depend on one CPU thread.

01Apple M4 10 CoreApple4,491 points
02AMD Ryzen AI 5 440GAMD4,060 points
03AMD Ryzen 5 PRO 8600GEAMD3,876 points
04AMD Ryzen 5 PRO 8645HSThis CPU3,840 points

Performance per watt

Estimated as CPU Mark divided by TDP.

01Apple M4 10 CoreApple1,071.1 Mark/W
02AMD Ryzen 5 PRO 8600GEAMD677.3 Mark/W
03AMD Ryzen 5 PRO 8645HSThis CPU523.8 Mark/W
04AMD Ryzen AI 5 440GAMD361.3 Mark/W

Bars are relative to the processors shown here, not a global ranking of every CPU.

Detailed benchmark results

Snapshot from 2026-10-20

Data CompressionKBytes/Sec
264,801.00
Data EncryptionMBytes/Sec
16,914.00
Extended InstructionsMillion Matrices/Sec
20,611.00
Find Prime NumbersMillion Primes/Sec
79.00
Floating Point MathMOps/Sec
45,499.00
Integer MathMOps/Sec
73,343.00
PhysicsFrames/Sec
1,242.00
Random String SortingThousand Strings/Sec
34,446.00

Core specifications

BrandAMD
CategoryDesktop
Release year2025
SocketFP7,FP7R2
Cores / threads6 / 12
Base clock4.30 GHz
Max turbo5.00 GHz
TDP45 W
Integrated graphicsw/ Radeon 760M Graphics

Memory support

DDR5
Memory typeDDR5 / LPDDR5X
Official speedDDR5-5600 / LPDDR5X-7500
Maximum capacity256 GB

Cache hierarchy

L1I6 x 32 KB
L1D6 x 32 KB
L26 x 1024 KB
L316 MB