Ryzen 7 7800X3D vs Core Ultra 7 255H
Ryzen 7 7800X3D
Core Ultra 7 255H
Popular choices:
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 7800X3D
Performance Per Dollar Core Ultra 7 255H
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 7800X3D | Core Ultra 7 255H |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($384) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm) | ✨ Modern (Arrow Lake-H (2025) / 5 nm) |
💎 Value Proposition
| Insight | Ryzen 7 7800X3D | Core Ultra 7 255H |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($384) | ✅ More affordable ($0) |
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 7800X3D and Core Ultra 7 255H
Ryzen 7 7800X3D
The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.
Core Ultra 7 255H
The Core Ultra 7 255H is manufactured by Intel. It was released in 1 January 2025 (less than a year ago). It is based on the Arrow Lake-H (2025) architecture. It features 16 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5.1 GHz. L3 cache: 24 MB. Built on 5 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): 26 MB + 24 MB. Memory support: DDR5-6400. Passmark benchmark score: 30,932 points. Launch price was $514.
Processing Power
The Ryzen 7 7800X3D packs 8 cores / 16 threads, while the Core Ultra 7 255H offers 16 cores / 16 threads — the Core Ultra 7 255H has 8 more cores. Boost clocks reach 5 GHz on the Ryzen 7 7800X3D versus 5.1 GHz on the Core Ultra 7 255H — a 2% clock advantage for the Core Ultra 7 255H (base: 4.4 GHz vs 4.4 GHz). The Ryzen 7 7800X3D uses the Raphael (Zen4) (2022−2023) architecture (5 nm), while the Core Ultra 7 255H uses Arrow Lake-H (2025) (5 nm). In PassMark, the Ryzen 7 7800X3D scores 34,293 against the Core Ultra 7 255H's 30,932 — a 10.3% lead for the Ryzen 7 7800X3D. Geekbench 6 single-core — the metric most relevant to gaming — records 2,700 vs 2,800, a 3.6% lead for the Core Ultra 7 255H that directly translates to higher frame rates. Multi-core Geekbench: 15,000 vs 15,700 (4.6% advantage for the Core Ultra 7 255H). L3 cache: 96 MB (total) on the Ryzen 7 7800X3D vs 24 MB on the Core Ultra 7 255H.
| Feature | Ryzen 7 7800X3D | Core Ultra 7 255H |
|---|---|---|
| Cores / Threads | 8 / 16 | 16 / 16+100% |
| Boost Clock | 5 GHz | 5.1 GHz+2% |
| Base Clock | 4.4 GHz | 4.4 GHz |
| L3 Cache | 96 MB (total)+300% | 24 MB |
| L2 Cache | 1 MB (per core) | — |
| Process | 5 nm | 5 nm |
| Architecture | Raphael (Zen4) (2022−2023) | Arrow Lake-H (2025) |
| PassMark | 34,293+11% | 30,932 |
| Cinebench R23 Multi | 18,500 | — |
| Geekbench 6 Single | 2,700 | 2,800+4% |
| Geekbench 6 Multi | 15,000 | 15,700+5% |
Memory & Platform
The Ryzen 7 7800X3D uses the AM5 socket (PCIe 5.0), while the Core Ultra 7 255H uses FCBGA2049 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5200 memory speed. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 28 PCIe lanes. Chipset compatibility: X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D) and HM870,WM880 (Core Ultra 7 255H).
| Feature | Ryzen 7 7800X3D | Core Ultra 7 255H |
|---|---|---|
| Socket | AM5 | FCBGA2049 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-5200 | DDR5-6400 |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 28 | 28 |
Advanced Features
Only the Ryzen 7 7800X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 7 7800X3D) vs VT-x, VT-d (Core Ultra 7 255H). Both include integrated graphics — AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) and Intel Arc Graphics 140T (Core Ultra 7 255H) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming, Core Ultra 7 255H targets High-End Laptop. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.
| Feature | Ryzen 7 7800X3D | Core Ultra 7 255H |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | AMD Radeon Graphics (2-core) | Intel Arc Graphics 140T |
| Unlocked | Yes | No |
| AVX-512 | Yes | No |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | Gaming | High-End Laptop |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Ryzen 7 7800X3D and Core Ultra 7 255H
