CPU
GPU
Ryzen 5 8645HS
Ryzen 5 PRO 8640U
Performance Spectrum - CPU
About PassMark
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Ryzen 5 8645HS
Performance Per Dollar Ryzen 5 PRO 8640U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 5 8645HS | Ryzen 5 PRO 8640U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Hawk Point-HS (Zen 4) (2023−2024) / 4 nm) | ✨ Modern (Hawk Point (2024−2025) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 5 8645HS | Ryzen 5 PRO 8640U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
Performance Check
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.
Technical Specifications
Side-by-side comparison of Ryzen 5 8645HS and Ryzen 5 PRO 8640U
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 8640U
The Ryzen 5 PRO 8640U 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 3.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP7. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 22,373 points. Launch price was $299.
Processing Power
Both the Ryzen 5 8645HS and Ryzen 5 PRO 8640U share an identical 6-core/12-thread configuration. Boost clocks reach 5 GHz on the Ryzen 5 8645HS versus 4.9 GHz on the Ryzen 5 PRO 8640U — a 2% clock advantage for the Ryzen 5 8645HS (base: 4.3 GHz vs 3.5 GHz). The Ryzen 5 8645HS uses the Hawk Point-HS (Zen 4) (2023−2024) architecture (4 nm), while the Ryzen 5 PRO 8640U uses Hawk Point (2024−2025) (4 nm). In PassMark, the Ryzen 5 8645HS scores 22,257 against the Ryzen 5 PRO 8640U's 22,373 — a 0.5% lead for the Ryzen 5 PRO 8640U. Both processors carry 16 MB (total) of L3 cache.
| Feature | Ryzen 5 8645HS | Ryzen 5 PRO 8640U |
|---|---|---|
| Cores / Threads | 6 / 12 | 6 / 12 |
| Boost Clock | 5 GHz+2% | 4.9 GHz |
| Base Clock | 4.3 GHz+23% | 3.5 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-HS (Zen 4) (2023−2024) | Hawk Point (2024−2025) |
| PassMark | 22,257 | 22,373 |
| Cinebench R23 Multi | 13,316 | — |
| Geekbench 6 Single | 2,574 | — |
| Geekbench 6 Multi | 10,675 | — |
Memory & Platform
The Ryzen 5 8645HS uses the FP8 socket (PCIe 4.0), while the Ryzen 5 PRO 8640U uses FP7 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 5 8645HS | Ryzen 5 PRO 8640U |
|---|---|---|
| Socket | FP8 | FP7 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | LPDDR5x-7500 | — |
| Max RAM Capacity | 256 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 20 | — |
Advanced Features
Virtualization: AMD-V (SVM) (Ryzen 5 8645HS) / not specified (Ryzen 5 PRO 8640U). The Ryzen 5 8645HS includes integrated graphics (Radeon 760M), while the Ryzen 5 PRO 8640U requires a dedicated GPU. Primary use case: Ryzen 5 8645HS targets Gaming. Direct competitor: Ryzen 5 8645HS rivals Core i5-13500H.
| Feature | Ryzen 5 8645HS | Ryzen 5 PRO 8640U |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Radeon 760M | — |
| Unlocked | No | — |
| AVX-512 | Yes | — |
| Virtualization | AMD-V (SVM) | — |
| Target Use | Gaming | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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