Core Ultra 9 275HX vs Xeon W-3365
Core Ultra 9 275HX
Xeon W-3365
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 9 275HX
Performance Per Dollar Xeon W-3365
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 9 275HX | Xeon W-3365 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($3,499) |
| Longevity | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) | ✨ Modern (Ice Lake-W (2021) / 10 nm) |
💎 Value Proposition
| Insight | Core Ultra 9 275HX | Xeon W-3365 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($3,499) |
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 9 275HX and Xeon W-3365
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.
Xeon W-3365
The Xeon W-3365 is manufactured by Intel. It was released in 2021-07-29. It is based on the Ice Lake-W (2021) architecture. It features 32 cores and 64 threads. Base frequency is 2.7 GHz, with boost up to 4 GHz. L3 cache: 48 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 270 Watt. Memory support: DDR4-3200. Passmark benchmark score: 57,312 points. Launch price was $3,499.
Processing Power
The Core Ultra 9 275HX packs 24 cores / 24 threads, while the Xeon W-3365 offers 32 cores / 64 threads — the Xeon W-3365 has 8 more cores. Boost clocks reach 5.4 GHz on the Core Ultra 9 275HX versus 4 GHz on the Xeon W-3365 — a 29.8% clock advantage for the Core Ultra 9 275HX (base: 2.7 GHz vs 2.7 GHz). The Core Ultra 9 275HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Xeon W-3365 uses Ice Lake-W (2021) (10 nm). In PassMark, the Core Ultra 9 275HX scores 56,018 against the Xeon W-3365's 57,312 — a 2.3% lead for the Xeon W-3365. Geekbench 6 single-core — the metric most relevant to gaming — records 2,835 vs 1,960, a 36.5% lead for the Core Ultra 9 275HX that directly translates to higher frame rates. Multi-core Geekbench: 17,908 vs 16,817 (6.3% advantage for the Core Ultra 9 275HX). L3 cache: 36 MB (total) on the Core Ultra 9 275HX vs 48 MB (total) on the Xeon W-3365.
| Feature | Core Ultra 9 275HX | Xeon W-3365 |
|---|---|---|
| Cores / Threads | 24 / 24 | 32 / 64+33% |
| Boost Clock | 5.4 GHz+35% | 4 GHz |
| Base Clock | 2.7 GHz | 2.7 GHz |
| L3 Cache | 36 MB (total) | 48 MB (total)+33% |
| L2 Cache | 3 MB (per core)+200% | 1 MB (per core) |
| Process | 3 nm-70% | 10 nm |
| Architecture | Arrow Lake-HX (2025) | Ice Lake-W (2021) |
| PassMark | 56,018 | 57,312+2% |
| Geekbench 6 Single | 2,835+45% | 1,960 |
| Geekbench 6 Multi | 17,908+6% | 16,817 |
Memory & Platform
The Core Ultra 9 275HX uses the FCBGA2114 socket (PCIe 5.0), while the Xeon W-3365 uses LGA4189 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 9 275HX versus DDR4-3200 on the Xeon W-3365 — the Core Ultra 9 275HX supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon W-3365 supports up to 4096 GB of RAM compared to 256 GB — 176.5% more capacity for professional workloads. Memory channels: 2 (Core Ultra 9 275HX) vs 8 (Xeon W-3365). PCIe lanes: 24 (Core Ultra 9 275HX) vs 64 (Xeon W-3365) — the Xeon W-3365 offers 40 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 9 275HX) and Intel C621A (Xeon W-3365).
| Feature | Core Ultra 9 275HX | Xeon W-3365 |
|---|---|---|
| Socket | FCBGA2114 | LGA4189 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-6400+25% | DDR4-3200 |
| Max RAM Capacity | 256 GB | 4096 GB+1500% |
| RAM Channels | 2 | 8+300% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 64+167% |
Advanced Features
Only the Core Ultra 9 275HX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon W-3365 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core Ultra 9 275HX) vs true (Xeon W-3365). The Core Ultra 9 275HX includes integrated graphics (Intel Arc Graphics), while the Xeon W-3365 requires a dedicated GPU. Primary use case: Core Ultra 9 275HX targets High-End Gaming Laptop. Direct competitor: Core Ultra 9 275HX rivals Ryzen 9 9955HX; Xeon W-3365 rivals EPYC 7543.
| Feature | Core Ultra 9 275HX | Xeon W-3365 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Graphics | None |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | true |
| Target Use | High-End Gaming Laptop | — |
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