Core Ultra 7 255HX vs Ryzen 7 5800X
Core Ultra 7 255HX
Popular choices:
Ryzen 7 5800X
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 Ultra 7 255HX
Performance Per Dollar Ryzen 7 5800X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 7 255HX | Ryzen 7 5800X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($180) |
| Longevity | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Core Ultra 7 255HX | Ryzen 7 5800X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($180) |
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 Ultra 7 255HX and Ryzen 7 5800X
Core Ultra 7 255HX
The Core Ultra 7 255HX is manufactured by Intel. It was released in 2025-01-01. It is based on the Arrow Lake-HX (2025) architecture. It features 20 cores and 20 threads. Base frequency is 2.4 GHz, with boost up to 5.2 GHz. L3 cache: 30 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: FCBGA2114. Thermal design power (TDP): 55 Watt. Memory support: DDR5-6400. Passmark benchmark score: 49,765 points. Launch price was $450.
Ryzen 7 5800X
The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.
Processing Power
The Core Ultra 7 255HX packs 20 cores / 20 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Core Ultra 7 255HX has 12 more cores. Boost clocks reach 5.2 GHz on the Core Ultra 7 255HX versus 4.7 GHz on the Ryzen 7 5800X — a 10.1% clock advantage for the Core Ultra 7 255HX (base: 2.4 GHz vs 3.8 GHz). The Core Ultra 7 255HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core Ultra 7 255HX scores 49,765 against the Ryzen 7 5800X's 27,712 — a 56.9% lead for the Core Ultra 7 255HX. L3 cache: 30 MB (total) on the Core Ultra 7 255HX vs 32 MB on the Ryzen 7 5800X.
| Feature | Core Ultra 7 255HX | Ryzen 7 5800X |
|---|---|---|
| Cores / Threads | 20 / 20+150% | 8 / 16 |
| Boost Clock | 5.2 GHz+11% | 4.7 GHz |
| Base Clock | 2.4 GHz | 3.8 GHz+58% |
| L3 Cache | 30 MB (total) | 32 MB+7% |
| L2 Cache | 3 MB (per core)+500% | 512K (per core) |
| Process | 3 nm-57% | 7 nm, 12 nm |
| Architecture | Arrow Lake-HX (2025) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 49,765+80% | 27,712 |
| Geekbench 6 Single | 2,923 | — |
| Geekbench 6 Multi | 16,885 | — |
Memory & Platform
The Core Ultra 7 255HX uses the FCBGA2114 socket (PCIe 5.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 7 255HX versus DDR4-3200 on the Ryzen 7 5800X — the Core Ultra 7 255HX supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 7 255HX supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 24 PCIe lanes. Chipset compatibility: Intel HM870,Intel WM880 (Core Ultra 7 255HX) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X).
| Feature | Core Ultra 7 255HX | Ryzen 7 5800X |
|---|---|---|
| Socket | FCBGA2114 | AM4 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-6400+25% | DDR4-3200 |
| Max RAM Capacity | 192 GB+50% | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Virtualization support: true (Core Ultra 7 255HX) vs AMD-V (Ryzen 7 5800X). The Core Ultra 7 255HX includes integrated graphics (Intel Arc Xe-LPG), while the Ryzen 7 5800X requires a dedicated GPU. Primary use case: Ryzen 7 5800X targets Desktop. Direct competitor: Core Ultra 7 255HX rivals Ryzen 9 9850HX.
| Feature | Core Ultra 7 255HX | Ryzen 7 5800X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Xe-LPG | — |
| Unlocked | Yes | Yes |
| AVX-512 | No | No |
| Virtualization | true | AMD-V |
| Target Use | — | Desktop |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Core Ultra 7 255HX and Ryzen 7 5800X
