Ryzen 5 PRO 8645HS vs Ryzen 7 8840U

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

Trade-offs

❌Lower PassMark (23,227 vs 23,415).
❌60.7% higher power demand at 45W vs 28W.

Ryzen 7 8840U

2023

Why buy it

✅Draws 28W instead of 45W, a 17W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Ryzen 5 PRO 8645HS

2024

Ryzen 7 8840U

2023

Why buy it

✅Draws 28W instead of 45W, a 17W reduction.

Trade-offs

❌Lower PassMark (23,227 vs 23,415).
❌60.7% higher power demand at 45W vs 28W.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Ryzen 7 8840U better than Ryzen 5 PRO 8645HS?

Yes. Ryzen 7 8840U is the better overall CPU here. You are getting a 1.9% average FPS lead across 4 shared CPU game tests in our data and 0.8% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 8840U is the better pick here. According to our tests, it delivers 1.9% 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 7 8840U is the better fit. You are getting 0.8% better PassMark, backed by 8 cores and 16 threads.

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

Ryzen 7 8840U still looks like the safer overall buy. Ryzen 7 8840U is at an unclear MSRP at unclear MSRP versus unclear MSRP, and it gives you a 1.9% 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 2023). 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 7 8840U Benchmark Check

Path of Exile 2

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 8840U
1080p
low	265 FPS	255 FPS
medium	239 FPS	235 FPS
high	204 FPS	198 FPS
ultra	174 FPS	170 FPS
1440p
low	232 FPS	227 FPS
medium	190 FPS	189 FPS
high	157 FPS	154 FPS
ultra	137 FPS	136 FPS
4K
low	158 FPS	157 FPS
medium	130 FPS	133 FPS
high	102 FPS	103 FPS
ultra	88 FPS	91 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 8840U

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 8840U
1080p
low	426 FPS	468 FPS
medium	358 FPS	388 FPS
high	314 FPS	336 FPS
ultra	275 FPS	301 FPS
1440p
low	371 FPS	409 FPS
medium	325 FPS	358 FPS
high	288 FPS	310 FPS
ultra	244 FPS	265 FPS
4K
low	268 FPS	269 FPS
medium	240 FPS	247 FPS
high	224 FPS	234 FPS
ultra	187 FPS	202 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 8840U

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 8840U
1080p
low	581 FPS	585 FPS
medium	581 FPS	585 FPS
high	581 FPS	585 FPS
ultra	581 FPS	585 FPS
1440p
low	581 FPS	585 FPS
medium	581 FPS	585 FPS
high	522 FPS	525 FPS
ultra	446 FPS	451 FPS
4K
low	492 FPS	521 FPS
medium	431 FPS	458 FPS
high	369 FPS	406 FPS
ultra	303 FPS	345 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 8840U

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 8840U
1080p
low	581 FPS	585 FPS
medium	581 FPS	585 FPS
high	581 FPS	585 FPS
ultra	581 FPS	585 FPS
1440p
low	581 FPS	585 FPS
medium	581 FPS	585 FPS
high	581 FPS	585 FPS
ultra	581 FPS	548 FPS
4K
low	581 FPS	559 FPS
medium	548 FPS	501 FPS
high	490 FPS	446 FPS
ultra	426 FPS	384 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 8840U

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 PRO 8645HS and Ryzen 7 8840U

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 7 8840U

The Ryzen 7 8840U is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-U (Zen 4) (2023−2025) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 23,415 points. Launch price was $299.

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Processing Power

The Ryzen 5 PRO 8645HS packs 6 cores / 12 threads, while the Ryzen 7 8840U offers 8 cores / 16 threads — the Ryzen 7 8840U has 2 more cores. Boost clocks reach 5 GHz on the Ryzen 5 PRO 8645HS versus 5.1 GHz on the Ryzen 7 8840U — a 2% clock advantage for the Ryzen 7 8840U (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 7 8840U uses Hawk Point-U (Zen 4) (2023−2025) (4 nm). In PassMark, the Ryzen 5 PRO 8645HS scores 23,227 against the Ryzen 7 8840U's 23,415 — a 0.8% lead for the Ryzen 7 8840U. Both processors carry 16 MB (total) of L3 cache.

Feature	Ryzen 5 PRO 8645HS	Ryzen 7 8840U
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5 GHz	5.1 GHz+2%
Base Clock	4.3 GHz+30%	3.3 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 (2024−2025)	Hawk Point-U (Zen 4) (2023−2025)
PassMark	23,227	23,415

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Memory & Platform

The Ryzen 5 PRO 8645HS uses the FP7 socket (PCIe 4.0), while the Ryzen 7 8840U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.