Core i9-13900KS vs Ryzen 9 9955HX3D
Core i9-13900KS
Ryzen 9 9955HX3D
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 Core i9-13900KS
Performance Per Dollar Ryzen 9 9955HX3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-13900KS | Ryzen 9 9955HX3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($580) | ⚠️ Higher cost ($749) |
| Longevity | ✨ Modern (Raptor Lake-S (2023−2024) / Intel 7 nm) | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) |
💎 Value Proposition
| Insight | Core i9-13900KS | Ryzen 9 9955HX3D |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+27%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($580) | ⚠️ Higher cost ($749) |
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 Core i9-13900KS and Ryzen 9 9955HX3D
Core i9-13900KS
The Core i9-13900KS is manufactured by Intel. It was released in 12 January 2023 (2 years ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 24 cores and 32 threads. Base frequency is 3.2 GHz, with boost up to 5.8 GHz. L3 cache: 36 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 150 Watt. Memory support: DDR5-5600, DDR4-3200. Passmark benchmark score: 60,543 points. Launch price was $699.
Ryzen 9 9955HX3D
The Ryzen 9 9955HX3D is manufactured by AMD. It was released in 2025-01-01. It is based on the Fire Range-HX (Zen 5) (2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 61,578 points. Launch price was $700.
Processing Power
The Core i9-13900KS packs 24 cores / 32 threads, while the Ryzen 9 9955HX3D offers 16 cores / 32 threads — the Core i9-13900KS has 8 more cores. Boost clocks reach 5.8 GHz on the Core i9-13900KS versus 5.4 GHz on the Ryzen 9 9955HX3D — a 7.1% clock advantage for the Core i9-13900KS (base: 3.2 GHz vs 2.5 GHz). The Core i9-13900KS uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Ryzen 9 9955HX3D uses Fire Range-HX (Zen 5) (2025) (4 nm). In PassMark, the Core i9-13900KS scores 60,543 against the Ryzen 9 9955HX3D's 61,578 — a 1.7% lead for the Ryzen 9 9955HX3D. L3 cache: 36 MB (total) on the Core i9-13900KS vs 128 MB (total) on the Ryzen 9 9955HX3D.
| Feature | Core i9-13900KS | Ryzen 9 9955HX3D |
|---|---|---|
| Cores / Threads | 24 / 32+50% | 16 / 32 |
| Boost Clock | 5.8 GHz+7% | 5.4 GHz |
| Base Clock | 3.2 GHz+28% | 2.5 GHz |
| L3 Cache | 36 MB (total) | 128 MB (total)+256% |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | Intel 7 nm | 4 nm-43% |
| Architecture | Raptor Lake-S (2023−2024) | Fire Range-HX (Zen 5) (2025) |
| PassMark | 60,543 | 61,578+2% |
| Cinebench R23 Multi | 40,998 | — |
| Geekbench 6 Single | 3,123 | — |
| Geekbench 6 Multi | 21,421 | — |
Memory & Platform
The Core i9-13900KS uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 9955HX3D uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i9-13900KS versus 5600 on the Ryzen 9 9955HX3D — the Ryzen 9 9955HX3D supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i9-13900KS supports up to 192 GB of RAM compared to 96 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i9-13900KS) vs 28 (Ryzen 9 9955HX3D) — the Ryzen 9 9955HX3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z790,B760 (Core i9-13900KS) and FL1 (Ryzen 9 9955HX3D).
| Feature | Core i9-13900KS | Ryzen 9 9955HX3D |
|---|---|---|
| Socket | LGA1700 | FL1 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-5600 | 5600+111900% |
| Max RAM Capacity | 192 GB+209715100% | 96 |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 20 | 28+40% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 9955HX3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core i9-13900KS) vs VT-x, VT-d, AMD-V (Ryzen 9 9955HX3D). Both include integrated graphics — Intel UHD Graphics 770 (Core i9-13900KS) and AMD Radeon 610M (Ryzen 9 9955HX3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: Core i9-13900KS rivals Ryzen 9 7950X; Ryzen 9 9955HX3D rivals Core Ultra 9 185H.
| Feature | Core i9-13900KS | Ryzen 9 9955HX3D |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel UHD Graphics 770 | AMD Radeon 610M |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d, AMD-V |
Value Analysis
The Core i9-13900KS launched at $699 MSRP, while the Ryzen 9 9955HX3D debuted at $749.
| Feature | Core i9-13900KS | Ryzen 9 9955HX3D |
|---|---|---|
| MSRP | $699-7% | $749 |
| Avg Price (30d) | $580 | — |
| Release Date | 2023 | 2025 |
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