Ryzen 5 PRO 8645HS vs Ryzen 9 6900HS

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 PRO 8645HS vs Ryzen 9 6900HS 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 PRO 8645HS vs Ryzen 9 6900HS: 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 PRO 8645HS

2024

Why buy it

✅Better for gaming: +8.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌28.6% higher power demand at 45W vs 35W.
❌No integrated graphics, while Ryzen 9 6900HS can still boot and troubleshoot without a discrete GPU.

Ryzen 9 6900HS

2022

Why buy it

✅Draws 35W instead of 45W, a 10W reduction.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 680M, while Ryzen 5 PRO 8645HS needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 PRO 8645HS across 50 shared CPU benchmark tests.
❌Lower PassMark (23,040 vs 23,227).

Quick Answers

So, is Ryzen 5 PRO 8645HS better than Ryzen 9 6900HS?

Yes. Ryzen 5 PRO 8645HS is the better all-around CPU here. It gives you a 8.3% average FPS lead across 50 shared CPU game tests in our data, 0.8% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 5 PRO 8645HS is the better pick. According to our tests, it delivers 8.3% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 5 PRO 8645HS is the stronger fit. You are getting 0.8% better PassMark, backed by 6 cores and 12 threads.

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

Ryzen 5 PRO 8645HS still makes the most sense overall. Ryzen 5 PRO 8645HS comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 8.3% average FPS lead across 50 shared CPU game tests in our data.

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

Ryzen 5 PRO 8645HS makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2022) and more multi-core headroom with 6 cores / 12 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 5 PRO 8645HS vs Ryzen 9 6900HS Technical Specifications

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

Ryzen 5 PRO 8645HS

The Ryzen 5 PRO 8645HS 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 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: FP7. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 23,227 points. Launch price was $299.

Ryzen 9 6900HS

The Ryzen 9 6900HS is manufactured by AMD. It was released in Janeiro 2022 (3 years ago). It is based on the Rembrandt-H (Zen 3+) (2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 512K (per core). Built on 6 nm process technology. Socket: FP7. Thermal design power (TDP): 35 Watt. Memory support: DDR5. Passmark benchmark score: 23,040 points. Launch price was $299.

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Processing Power

The Ryzen 5 PRO 8645HS packs 6 cores / 12 threads, while the Ryzen 9 6900HS offers 8 cores / 16 threads — the Ryzen 9 6900HS has 2 more cores. Boost clocks reach 5 GHz on the Ryzen 5 PRO 8645HS versus 4.9 GHz on the Ryzen 9 6900HS — a 2% clock advantage for the Ryzen 5 PRO 8645HS (base: 4.3 GHz vs 3.3 GHz). The Ryzen 5 PRO 8645HS uses the Hawk Point (2024−2025) architecture (4 nm), while the Ryzen 9 6900HS uses Rembrandt-H (Zen 3+) (2022) (6 nm). In PassMark, the Ryzen 5 PRO 8645HS scores 23,227 against the Ryzen 9 6900HS's 23,040 — a 0.8% lead for the Ryzen 5 PRO 8645HS. Both processors carry 16 MB (total) of L3 cache.

Feature	Ryzen 5 PRO 8645HS	Ryzen 9 6900HS
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5 GHz+2%	4.9 GHz
Base Clock	4.3 GHz+30%	3.3 GHz
L3 Cache	16 MB (total)	16 MB (total)
L2 Cache	1 MB (per core)	512K (per core)+51100%
Process	4 nm-33%	6 nm
Architecture	Hawk Point (2024−2025)	Rembrandt-H (Zen 3+) (2022)
PassMark	23,227	23,040
Cinebench R23 Multi	—	13,445
Geekbench 6 Single	—	1,854
Geekbench 6 Multi	—	8,732

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Memory & Platform

Both processors use the FP7 socket with PCIe 4.0.

Feature	Ryzen 5 PRO 8645HS	Ryzen 9 6900HS
Socket	FP7	FP7
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	—	DDR5-4800
Max RAM Capacity	—	64 GB
RAM Channels	—	2
ECC Support	—	No
PCIe Lanes	—	20

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Advanced Features

Virtualization: not specified (Ryzen 5 PRO 8645HS) / AMD-V (Ryzen 9 6900HS). The Ryzen 9 6900HS includes integrated graphics (Radeon 680M), while the Ryzen 5 PRO 8645HS requires a dedicated GPU.