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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Ryzen 5 PRO 8645HS

2024

Why buy it

✅Better for gaming: +13.5% higher average FPS across 4 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 4 shared CPU benchmark tests.
❌Lower PassMark (23,040 vs 23,227).

Ryzen 5 PRO 8645HS

2024

Ryzen 9 6900HS

2022

Why buy it

✅Better for gaming: +13.5% higher average FPS across 4 shared CPU benchmark tests.

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

❌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.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 PRO 8645HS across 4 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 overall CPU here. You are getting a 13.5% average FPS lead across 4 shared CPU game tests in our data, 0.8% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 5 PRO 8645HS is the better pick here. According to our tests, it delivers 13.5% more average FPS across 4 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 better 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 looks like the safer overall buy. Ryzen 5 PRO 8645HS is at an unclear MSRP at unclear MSRP versus unclear MSRP, and it gives you a 13.5% average FPS lead across 4 shared CPU game tests in our data.

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

Ryzen 5 PRO 8645HS is the more future-proof choice 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 should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Ryzen 5 PRO 8645HS Benchmark Check

Ryzen 9 6900HS Benchmark Check

Path of Exile 2

Preset	Ryzen 5 PRO 8645HS	Ryzen 9 6900HS
1080p
low	265 FPS	251 FPS
medium	239 FPS	234 FPS
high	204 FPS	197 FPS
ultra	174 FPS	169 FPS
1440p
low	232 FPS	220 FPS
medium	190 FPS	186 FPS
high	157 FPS	152 FPS
ultra	137 FPS	133 FPS
4K
low	158 FPS	154 FPS
medium	130 FPS	131 FPS
high	102 FPS	101 FPS
ultra	88 FPS	89 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 9 6900HS

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 PRO 8645HS	Ryzen 9 6900HS
1080p
low	426 FPS	441 FPS
medium	358 FPS	370 FPS
high	314 FPS	322 FPS
ultra	275 FPS	287 FPS
1440p
low	371 FPS	370 FPS
medium	325 FPS	323 FPS
high	288 FPS	288 FPS
ultra	244 FPS	247 FPS
4K
low	268 FPS	255 FPS
medium	240 FPS	229 FPS
high	224 FPS	215 FPS
ultra	187 FPS	186 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 9 6900HS

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 PRO 8645HS	Ryzen 9 6900HS
1080p
low	581 FPS	576 FPS
medium	581 FPS	564 FPS
high	581 FPS	485 FPS
ultra	581 FPS	388 FPS
1440p
low	581 FPS	576 FPS
medium	581 FPS	510 FPS
high	522 FPS	437 FPS
ultra	446 FPS	355 FPS
4K
low	492 FPS	432 FPS
medium	431 FPS	368 FPS
high	369 FPS	323 FPS
ultra	303 FPS	262 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 9 6900HS

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 PRO 8645HS	Ryzen 9 6900HS
1080p
low	581 FPS	576 FPS
medium	581 FPS	576 FPS
high	581 FPS	576 FPS
ultra	581 FPS	576 FPS
1440p
low	581 FPS	576 FPS
medium	581 FPS	576 FPS
high	581 FPS	576 FPS
ultra	581 FPS	513 FPS
4K
low	581 FPS	536 FPS
medium	548 FPS	489 FPS
high	490 FPS	438 FPS
ultra	426 FPS	379 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 9 6900HS

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 PRO 8645HS and Ryzen 9 6900HS

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)+100%	512K (per core)
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.