Ryzen 7 5800X vs Core Ultra 7 265K
Ryzen 7 5800X
Core Ultra 7 265K
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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 7 5800X
Performance Per Dollar Core Ultra 7 265K
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800X | Core Ultra 7 265K |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($180) | ⚠️ Higher cost ($285) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | ✨ Modern (Arrow Lake-S (2024−2025) / 3 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800X | Core Ultra 7 265K |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+34%) |
| Upfront Cost | ✅ More affordable ($180) | ⚠️ Higher cost ($285) |
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 7 5800X and Core Ultra 7 265K
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.
Core Ultra 7 265K
The Core Ultra 7 265K is manufactured by Intel. It was released in 24 October 2024 (1 year ago). It is based on the Arrow Lake-S (2024−2025) architecture. It features 20 cores and 20 threads. Base frequency is 3.9 GHz, with boost up to 5.5 GHz. L3 cache: 30 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: LGA1851. Thermal design power (TDP): 125 Watt. Memory support: DDR5-6400. Passmark benchmark score: 58,789 points. Launch price was $394.
Processing Power
The Ryzen 7 5800X packs 8 cores / 16 threads, while the Core Ultra 7 265K offers 20 cores / 20 threads — the Core Ultra 7 265K has 12 more cores. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 5.5 GHz on the Core Ultra 7 265K — a 15.7% clock advantage for the Core Ultra 7 265K (base: 3.8 GHz vs 3.9 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Core Ultra 7 265K uses Arrow Lake-S (2024−2025) (3 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Core Ultra 7 265K's 58,789 — a 71.9% lead for the Core Ultra 7 265K. L3 cache: 32 MB on the Ryzen 7 5800X vs 30 MB (total) on the Core Ultra 7 265K.
| Feature | Ryzen 7 5800X | Core Ultra 7 265K |
|---|---|---|
| Cores / Threads | 8 / 16 | 20 / 20+150% |
| Boost Clock | 4.7 GHz | 5.5 GHz+17% |
| Base Clock | 3.8 GHz | 3.9 GHz+3% |
| L3 Cache | 32 MB+7% | 30 MB (total) |
| L2 Cache | 512K (per core) | 3 MB (per core)+500% |
| Process | 7 nm, 12 nm | 3 nm-57% |
| Architecture | Vermeer (Zen 3) (2020−2022) | Arrow Lake-S (2024−2025) |
| PassMark | 27,712 | 58,789+112% |
| Cinebench R23 Multi | — | 36,309 |
| Geekbench 6 Single | — | 3,283 |
| Geekbench 6 Multi | — | 22,293 |
Memory & Platform
The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Core Ultra 7 265K uses LGA1851 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 7 5800X versus DDR5-6400 on the Core Ultra 7 265K — the Core Ultra 7 265K supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 7 265K 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: 24 (Ryzen 7 5800X) vs 20 (Core Ultra 7 265K) — the Ryzen 7 5800X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X) and LGA1851 (Core Ultra 7 265K).
| Feature | Ryzen 7 5800X | Core Ultra 7 265K |
|---|---|---|
| Socket | AM4 | LGA1851 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | DDR5-6400+25% |
| Max RAM Capacity | 128 GB | 256 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24+20% | 20 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Core Ultra 7 265K supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 7 5800X) vs VT-x, VT-d (Core Ultra 7 265K). The Core Ultra 7 265K includes integrated graphics (Arc Graphics 64EU), while the Ryzen 7 5800X requires a dedicated GPU. Primary use case: Ryzen 7 5800X targets Desktop.
| Feature | Ryzen 7 5800X | Core Ultra 7 265K |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Arc Graphics 64EU |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | Desktop | — |
Value Analysis
The Ryzen 7 5800X launched at $449 MSRP, while the Core Ultra 7 265K debuted at $309. At current prices ($180 vs $285), the Ryzen 7 5800X is $105 cheaper. In terms of value (PassMark points per dollar), the Ryzen 7 5800X delivers 154.0 pts/$ vs 206.3 pts/$ for the Core Ultra 7 265K — making the Core Ultra 7 265K the 29% better value option.
| Feature | Ryzen 7 5800X | Core Ultra 7 265K |
|---|---|---|
| MSRP | $449 | $309-31% |
| Avg Price (30d) | $180-37% | $285 |
| Performance per Dollar | 154.0 | 206.3+34% |
| Release Date | 2020 | 2024 |
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