Ryzen 7 8840U vs Ryzen 5 PRO 8645HS

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Ryzen 5 PRO 8645HS

#169

Xeon E-2356G

MSRP: $311|Avg: $544

102%

#171

Xeon W-2140B

MSRP: $294|Avg: $99

101%

#176

Xeon 6325P

MSRP: $281|Avg: $281

100%

#177

Ryzen 5 PRO 8645HS

MSRP: N/A|Avg: N/A

100%

#178

Xeon Silver 4510

MSRP: $563|Avg: $563

100%

#179

Xeon W-3223

MSRP: $294|Avg: $294

99%

#182

EPYC Embedded 8224P

MSRP: $855|Avg: $1048

98%

#187

Xeon Gold 5520+

MSRP: $1083|Avg: $764

97%

#188

EPYC 8124P

MSRP: $639|Avg: $639

97%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Ryzen 7 8840U delivers superior performance across the board. It outperforms the Ryzen 5 PRO 8645HS in both compute-intensive tasks (0.8% faster) and gaming workloads.

Insight	Ryzen 7 8840U	Ryzen 5 PRO 8645HS
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Hawk Point-U (Zen 4) (2023−2025) / 4 nm)	✨ Modern (Hawk Point (2024−2025) / 4 nm)

💎 Value Proposition

Insight	Ryzen 7 8840U	Ryzen 5 PRO 8645HS
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

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 7 8840U Benchmark Check

Ryzen 5 PRO 8645HS Benchmark Check

Technical Specifications

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

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.

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.

⚡

Processing Power

The Ryzen 7 8840U packs 8 cores / 16 threads, while the Ryzen 5 PRO 8645HS offers 6 cores / 12 threads — the Ryzen 7 8840U has 2 more cores. Boost clocks reach 5.1 GHz on the Ryzen 7 8840U versus 5 GHz on the Ryzen 5 PRO 8645HS — a 2% clock advantage for the Ryzen 7 8840U (base: 3.3 GHz vs 4.3 GHz). The Ryzen 7 8840U uses the Hawk Point-U (Zen 4) (2023−2025) architecture (4 nm), while the Ryzen 5 PRO 8645HS uses Hawk Point (2024−2025) (4 nm). In PassMark, the Ryzen 7 8840U scores 23,415 against the Ryzen 5 PRO 8645HS's 23,227 — a 0.8% lead for the Ryzen 7 8840U. Both processors carry 16 MB (total) of L3 cache.

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

🧠

Memory & Platform

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