CPU
GPU
Ryzen 5 8645HS
Core i9-10900K
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 Core i9-10900K
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 5 8645HS | Core i9-10900K |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($500) |
| Longevity | ✨ Modern (Hawk Point-HS (Zen 4) (2023−2024) / 4 nm) | ✨ Modern (Comet Lake (2020−2025) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 5 8645HS | Core i9-10900K |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($500) |
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 Core i9-10900K
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.
Core i9-10900K
The Core i9-10900K is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 10 cores and 20 threads. Base frequency is 3.7 GHz, with boost up to 5.2 GHz. L3 cache: 20 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 125 Watt. Memory support: DDR4. Passmark benchmark score: 22,382 points. Launch price was $488.
Processing Power
The Ryzen 5 8645HS packs 6 cores / 12 threads, while the Core i9-10900K offers 10 cores / 20 threads — the Core i9-10900K has 4 more cores. Boost clocks reach 5 GHz on the Ryzen 5 8645HS versus 5.2 GHz on the Core i9-10900K — a 3.9% clock advantage for the Core i9-10900K (base: 4.3 GHz vs 3.7 GHz). The Ryzen 5 8645HS uses the Hawk Point-HS (Zen 4) (2023−2024) architecture (4 nm), while the Core i9-10900K uses Comet Lake (2020−2025) (14 nm). In PassMark, the Ryzen 5 8645HS scores 22,257 against the Core i9-10900K's 22,382 — a 0.6% lead for the Core i9-10900K. L3 cache: 16 MB (total) on the Ryzen 5 8645HS vs 20 MB (total) on the Core i9-10900K.
| Feature | Ryzen 5 8645HS | Core i9-10900K |
|---|---|---|
| Cores / Threads | 6 / 12 | 10 / 20+67% |
| Boost Clock | 5 GHz | 5.2 GHz+4% |
| Base Clock | 4.3 GHz+16% | 3.7 GHz |
| L3 Cache | 16 MB (total) | 20 MB (total)+25% |
| L2 Cache | 1 MB (per core)+300% | 256 kB (per core) |
| Process | 4 nm-71% | 14 nm |
| Architecture | Hawk Point-HS (Zen 4) (2023−2024) | Comet Lake (2020−2025) |
| PassMark | 22,257 | 22,382 |
| 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 Core i9-10900K uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-7500 on the Ryzen 5 8645HS versus DDR4-2933 on the Core i9-10900K — the Ryzen 5 8645HS supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 8645HS supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Ryzen 5 8645HS) vs 16 (Core i9-10900K) — the Ryzen 5 8645HS offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 5 8645HS) and Intel 400 series (Core i9-10900K).
| Feature | Ryzen 5 8645HS | Core i9-10900K |
|---|---|---|
| Socket | FP8 | LGA1200 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | LPDDR5x-7500+25% | DDR4-2933 |
| Max RAM Capacity | 256 GB+100% | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 20+25% | 16 |
Advanced Features
Only the Core i9-10900K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 5 8645HS supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (SVM) (Ryzen 5 8645HS) vs VT-x, VT-d (Core i9-10900K). Both include integrated graphics — Radeon 760M (Ryzen 5 8645HS) and UHD Graphics 630 (Core i9-10900K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 5 8645HS targets Gaming, Core i9-10900K targets Desktop. Direct competitor: Ryzen 5 8645HS rivals Core i5-13500H.
| Feature | Ryzen 5 8645HS | Core i9-10900K |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Radeon 760M | UHD Graphics 630 |
| Unlocked | No | Yes |
| AVX-512 | Yes | No |
| Virtualization | AMD-V (SVM) | VT-x, VT-d |
| Target Use | Gaming | Desktop |
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