Core Ultra 7 255H vs Xeon Silver 4514Y
Core Ultra 7 255H
Xeon Silver 4514Y
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 255H
Performance Per Dollar Xeon Silver 4514Y
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 7 255H | Xeon Silver 4514Y |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Arrow Lake-H (2025) / 5 nm) | ✨ Modern (Emerald Rapids (2023) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core Ultra 7 255H | Xeon Silver 4514Y |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 255H and Xeon Silver 4514Y
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.
Xeon Silver 4514Y
The Xeon Silver 4514Y is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Emerald Rapids (2023) architecture. It features 16 cores and 32 threads. Base frequency is 2 GHz, with boost up to 3.4 GHz. L3 cache: 30 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 150 Watt. Memory support: DDR5-4400. Passmark benchmark score: 30,621 points. Launch price was $780.
Processing Power
The Core Ultra 7 255H packs 16 cores / 16 threads, matching the Xeon Silver 4514Y's 16 cores. Boost clocks reach 5.1 GHz on the Core Ultra 7 255H versus 3.4 GHz on the Xeon Silver 4514Y — a 40% clock advantage for the Core Ultra 7 255H (base: 4.4 GHz vs 2 GHz). The Core Ultra 7 255H uses the Arrow Lake-H (2025) architecture (5 nm), while the Xeon Silver 4514Y uses Emerald Rapids (2023) (Intel 7 nm). In PassMark, the Core Ultra 7 255H scores 30,932 against the Xeon Silver 4514Y's 30,621 — a 1% lead for the Core Ultra 7 255H. Geekbench 6 single-core — the metric most relevant to gaming — records 2,800 vs 2,100, a 28.6% lead for the Core Ultra 7 255H that directly translates to higher frame rates. Multi-core Geekbench: 15,700 vs 14,000 (11.4% advantage for the Core Ultra 7 255H). L3 cache: 24 MB on the Core Ultra 7 255H vs 30 MB (total) on the Xeon Silver 4514Y.
| Feature | Core Ultra 7 255H | Xeon Silver 4514Y |
|---|---|---|
| Cores / Threads | 16 / 16 | 16 / 32 |
| Boost Clock | 5.1 GHz+50% | 3.4 GHz |
| Base Clock | 4.4 GHz+120% | 2 GHz |
| L3 Cache | 24 MB | 30 MB (total)+25% |
| L2 Cache | — | 2 MB (per core) |
| Process | 5 nm-29% | Intel 7 nm |
| Architecture | Arrow Lake-H (2025) | Emerald Rapids (2023) |
| PassMark | 30,932+1% | 30,621 |
| Cinebench R23 Multi | — | 22,000 |
| Geekbench 6 Single | 2,800+33% | 2,100 |
| Geekbench 6 Multi | 15,700+12% | 14,000 |
Memory & Platform
The Core Ultra 7 255H uses the FCBGA2049 socket (PCIe 5.0), while the Xeon Silver 4514Y uses LGA4677 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR5-6400 memory speed. The Xeon Silver 4514Y supports up to 4096 GB of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Core Ultra 7 255H) vs 8 (Xeon Silver 4514Y). PCIe lanes: 28 (Core Ultra 7 255H) vs 80 (Xeon Silver 4514Y) — the Xeon Silver 4514Y offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 7 255H) and C741 (Xeon Silver 4514Y).
| Feature | Core Ultra 7 255H | Xeon Silver 4514Y |
|---|---|---|
| Socket | FCBGA2049 | LGA4677 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-6400 | DDR5-4400 |
| Max RAM Capacity | 128 GB | 4096 GB+3100% |
| RAM Channels | 2 | 8+300% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 28 | 80+186% |
Advanced Features
Neither processor supports overclocking. Only the Xeon Silver 4514Y supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core Ultra 7 255H) vs VT-x, VT-d, EPT (Xeon Silver 4514Y). The Core Ultra 7 255H includes integrated graphics (Intel Arc Graphics 140T), while the Xeon Silver 4514Y requires a dedicated GPU. Primary use case: Core Ultra 7 255H targets High-End Laptop, Xeon Silver 4514Y targets Mainstream Server / Virtualization. Direct competitor: Xeon Silver 4514Y rivals EPYC 8212.
| Feature | Core Ultra 7 255H | Xeon Silver 4514Y |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Graphics 140T | — |
| Unlocked | No | No |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d, EPT |
| Target Use | High-End Laptop | Mainstream Server / Virtualization |
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