Xeon w7-3455 vs Core Ultra 9 275HX
Xeon w7-3455
Core Ultra 9 275HX
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 Xeon w7-3455
Performance Per Dollar Core Ultra 9 275HX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon w7-3455 | Core Ultra 9 275HX |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($2,625) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) |
💎 Value Proposition
| Insight | Xeon w7-3455 | Core Ultra 9 275HX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($2,625) | ✅ 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 Xeon w7-3455 and Core Ultra 9 275HX
Xeon w7-3455
The Xeon w7-3455 is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 24 cores and 48 threads. Base frequency is 2.5 GHz, with boost up to 4.8 GHz. L3 cache: 67.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 270 Watt. Memory support: DDR5-4800. Passmark benchmark score: 54,925 points. Launch price was $2,489.
Core Ultra 9 275HX
The Core Ultra 9 275HX is manufactured by Intel. It was released in 2025-01-01. It is based on the Arrow Lake-HX (2025) architecture. It features 24 cores and 24 threads. Base frequency is 2.7 GHz, with boost up to 5.4 GHz. L3 cache: 36 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: 56,018 points. Launch price was $600.
Processing Power
The Xeon w7-3455 packs 24 cores / 48 threads, matching the Core Ultra 9 275HX's 24 cores. Boost clocks reach 4.8 GHz on the Xeon w7-3455 versus 5.4 GHz on the Core Ultra 9 275HX — a 11.8% clock advantage for the Core Ultra 9 275HX (base: 2.5 GHz vs 2.7 GHz). The Xeon w7-3455 uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the Core Ultra 9 275HX uses Arrow Lake-HX (2025) (3 nm). In PassMark, the Xeon w7-3455 scores 54,925 against the Core Ultra 9 275HX's 56,018 — a 2% lead for the Core Ultra 9 275HX. Geekbench 6 single-core — the metric most relevant to gaming — records 1,900 vs 2,835, a 39.5% lead for the Core Ultra 9 275HX that directly translates to higher frame rates. Multi-core Geekbench: 1,898 vs 17,908 (161.7% advantage for the Core Ultra 9 275HX). L3 cache: 67.5 MB on the Xeon w7-3455 vs 36 MB (total) on the Core Ultra 9 275HX.
| Feature | Xeon w7-3455 | Core Ultra 9 275HX |
|---|---|---|
| Cores / Threads | 24 / 48 | 24 / 24 |
| Boost Clock | 4.8 GHz | 5.4 GHz+13% |
| Base Clock | 2.5 GHz | 2.7 GHz+8% |
| L3 Cache | 67.5 MB+88% | 36 MB (total) |
| L2 Cache | 2 MB (per core) | 3 MB (per core)+50% |
| Process | Intel 7 nm | 3 nm-57% |
| Architecture | Sapphire Rapids (2023−2024) | Arrow Lake-HX (2025) |
| PassMark | 54,925 | 56,018+2% |
| Geekbench 6 Single | 1,900 | 2,835+49% |
| Geekbench 6 Multi | 1,898 | 17,908+844% |
Memory & Platform
The Xeon w7-3455 uses the LGA4677 socket (PCIe 5.0), while the Core Ultra 9 275HX uses FCBGA2114 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800 memory speed. The Xeon w7-3455 supports up to 4096 GB of RAM compared to 256 GB — 176.5% more capacity for professional workloads. Memory channels: 8 (Xeon w7-3455) vs 2 (Core Ultra 9 275HX). PCIe lanes: 112 (Xeon w7-3455) vs 24 (Core Ultra 9 275HX) — the Xeon w7-3455 offers 88 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel W790 (Xeon w7-3455) and HM870,WM880 (Core Ultra 9 275HX).
| Feature | Xeon w7-3455 | Core Ultra 9 275HX |
|---|---|---|
| Socket | LGA4677 | FCBGA2114 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-4800 | DDR5-6400 |
| Max RAM Capacity | 4096 GB+1500% | 256 GB |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 112+367% | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Xeon w7-3455 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Xeon w7-3455) vs VT-x, VT-d (Core Ultra 9 275HX). The Core Ultra 9 275HX includes integrated graphics (Intel Arc Graphics), while the Xeon w7-3455 requires a dedicated GPU. Primary use case: Core Ultra 9 275HX targets High-End Gaming Laptop. Direct competitor: Xeon w7-3455 rivals Threadripper PRO 7965WX; Core Ultra 9 275HX rivals Ryzen 9 9955HX.
| Feature | Xeon w7-3455 | Core Ultra 9 275HX |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Intel Arc Graphics |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | No |
| Virtualization | true | VT-x, VT-d |
| Target Use | — | High-End Gaming Laptop |
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