Ryzen 5 8645HS vs Ryzen 5 PRO 7640HS

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 7640HS 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 7640HS: 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

✅+0.6% higher PassMark.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 760M, while Ryzen 5 PRO 7640HS needs a discrete GPU.

Trade-offs

❌650% higher power demand at 45W vs 6W.

Ryzen 5 PRO 7640HS

2023

Why buy it

✅Draws 6W instead of 45W, a 39W reduction.

Trade-offs

❌Lower PassMark (22,132 vs 22,257).
❌No integrated graphics, while Ryzen 5 8645HS can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 5 8645HS better than Ryzen 5 PRO 7640HS?

Yes. Ryzen 5 8645HS is the better all-around CPU here. It gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data, 0.6% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

For gaming, this matchup is basically a tie in the data we have.

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

For streaming, content creation, and heavier multitasking, Ryzen 5 8645HS is the stronger fit. You are getting 0.6% better PassMark, backed by 6 cores and 12 threads.

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

Ryzen 5 8645HS still makes the most sense overall. Ryzen 5 8645HS comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data.

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

Ryzen 5 8645HS makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 6 cores / 12 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Ryzen 5 8645HS vs Ryzen 5 PRO 7640HS 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 7640HS

The Ryzen 5 PRO 7640HS is manufactured by AMD. It was released in 5 January 2023 (2 years ago). It is based on the Phoenix (Zen4) (2023) architecture. It features 6 cores and 12 threads. Base frequency is 4.3 GHz, with boost up to 5 GHz. L3 cache: 16 MB. L2 cache: 6 MB. Built on 4 nm process technology. Socket: FP7/FP8. Thermal design power (TDP): 6 MB + 16 MB. Memory support: LPDDR5x, DDR5. Passmark benchmark score: 22,132 points. Launch price was $299.

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Processing Power

Both the Ryzen 5 8645HS and Ryzen 5 PRO 7640HS share an identical 6-core/12-thread configuration. Boost clocks reach 5 GHz on the Ryzen 5 8645HS versus 5 GHz on the Ryzen 5 PRO 7640HS — identical boost frequencies (base: 4.3 GHz vs 4.3 GHz). The Ryzen 5 8645HS uses the Hawk Point-HS (Zen 4) (2023−2024) architecture (4 nm), while the Ryzen 5 PRO 7640HS uses Phoenix (Zen4) (2023) (4 nm). In PassMark, the Ryzen 5 8645HS scores 22,257 against the Ryzen 5 PRO 7640HS's 22,132 — a 0.6% lead for the Ryzen 5 8645HS. L3 cache: 16 MB (total) on the Ryzen 5 8645HS vs 16 MB on the Ryzen 5 PRO 7640HS.

Feature	Ryzen 5 8645HS	Ryzen 5 PRO 7640HS
Cores / Threads	6 / 12	6 / 12
Boost Clock	5 GHz	5 GHz
Base Clock	4.3 GHz	4.3 GHz
L3 Cache	16 MB (total)	16 MB
L2 Cache	1 MB (per core)	6 MB+500%
Process	4 nm	4 nm
Architecture	Hawk Point-HS (Zen 4) (2023−2024)	Phoenix (Zen4) (2023)
PassMark	22,257	22,132
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 7640HS uses FP7/FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Ryzen 5 8645HS	Ryzen 5 PRO 7640HS
Socket	FP8	FP7/FP8
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 7640HS). The Ryzen 5 8645HS includes integrated graphics (Radeon 760M), while the Ryzen 5 PRO 7640HS requires a dedicated GPU. Primary use case: Ryzen 5 8645HS targets Gaming. Direct competitor: Ryzen 5 8645HS rivals Core i5-13500H.