Ryzen 5 8645HS vs Ryzen 5 PRO 8640U

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Ryzen 5 8645HS vs Ryzen 5 PRO 8640U FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Ryzen 5 8645HS vs Ryzen 5 PRO 8640U: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Ryzen 5 8645HS

2023

Why buy it

✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 760M, while Ryzen 5 PRO 8640U needs a discrete GPU.

Trade-offs

❌Lower PassMark (22,257 vs 22,373).
❌60.7% higher power demand at 45W vs 28W.

Ryzen 5 PRO 8640U

2024

Why buy it

✅+0.5% higher PassMark.
✅Draws 28W instead of 45W, a 17W reduction.

Trade-offs

❌No integrated graphics, while Ryzen 5 8645HS can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 5 PRO 8640U better than Ryzen 5 8645HS?

It depends on what you want from the system. For gaming, Ryzen 5 8645HS is ahead with a 1.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 5 PRO 8640U pulls ahead with 0.5% better PassMark.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen 5 PRO 8640U is the stronger fit. You are getting 0.5% better PassMark, backed by 6 cores and 12 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen 5 PRO 8640U still makes the most sense overall. Ryzen 5 PRO 8640U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.5% better PassMark.

Which one is more future-proof for 2026 and beyond?

Ryzen 5 PRO 8640U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023) and more multi-core headroom with 6 cores / 12 threads instead of 6/12. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 5 8645HS vs Ryzen 5 PRO 8640U Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Ryzen 5 8645HS

The Ryzen 5 8645HS is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-HS (Zen 4) (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 4.3 GHz, with boost up to 5 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 22,257 points. Launch price was $299.

Ryzen 5 PRO 8640U

The Ryzen 5 PRO 8640U is manufactured by AMD. It was released in 16 April 2024 (1 year ago). It is based on the Hawk Point (2024−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP7. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 22,373 points. Launch price was $299.

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Processing Power

Both the Ryzen 5 8645HS and Ryzen 5 PRO 8640U share an identical 6-core/12-thread configuration. Boost clocks reach 5 GHz on the Ryzen 5 8645HS versus 4.9 GHz on the Ryzen 5 PRO 8640U — a 2% clock advantage for the Ryzen 5 8645HS (base: 4.3 GHz vs 3.5 GHz). The Ryzen 5 8645HS uses the Hawk Point-HS (Zen 4) (2023−2024) architecture (4 nm), while the Ryzen 5 PRO 8640U uses Hawk Point (2024−2025) (4 nm). In PassMark, the Ryzen 5 8645HS scores 22,257 against the Ryzen 5 PRO 8640U's 22,373 — a 0.5% lead for the Ryzen 5 PRO 8640U. Both processors carry 16 MB (total) of L3 cache.

Feature	Ryzen 5 8645HS	Ryzen 5 PRO 8640U
Cores / Threads	6 / 12	6 / 12
Boost Clock	5 GHz+2%	4.9 GHz
Base Clock	4.3 GHz+23%	3.5 GHz
L3 Cache	16 MB (total)	16 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm	4 nm
Architecture	Hawk Point-HS (Zen 4) (2023−2024)	Hawk Point (2024−2025)
PassMark	22,257	22,373
Cinebench R23 Multi	13,316	—
Geekbench 6 Single	2,574	—
Geekbench 6 Multi	10,675	—

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Memory & Platform

The Ryzen 5 8645HS uses the FP8 socket (PCIe 4.0), while the Ryzen 5 PRO 8640U uses FP7 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Ryzen 5 8645HS	Ryzen 5 PRO 8640U
Socket	FP8	FP7
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	LPDDR5x-7500	—
Max RAM Capacity	256 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: AMD-V (SVM) (Ryzen 5 8645HS) / not specified (Ryzen 5 PRO 8640U). The Ryzen 5 8645HS includes integrated graphics (Radeon 760M), while the Ryzen 5 PRO 8640U requires a dedicated GPU. Primary use case: Ryzen 5 8645HS targets Gaming. Direct competitor: Ryzen 5 8645HS rivals Core i5-13500H.