Core Ultra 7 255HX vs Xeon w7-3445
Core Ultra 7 255HX
Xeon w7-3445
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 255HX
Performance Per Dollar Xeon w7-3445
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 7 255HX | Xeon w7-3445 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($2,596) |
| Longevity | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core Ultra 7 255HX | Xeon w7-3445 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($2,596) |
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 255HX and Xeon w7-3445
Core Ultra 7 255HX
The Core Ultra 7 255HX is manufactured by Intel. It was released in 2025-01-01. It is based on the Arrow Lake-HX (2025) architecture. It features 20 cores and 20 threads. Base frequency is 2.4 GHz, with boost up to 5.2 GHz. L3 cache: 30 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: 49,765 points. Launch price was $450.
Xeon w7-3445
The Xeon w7-3445 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 20 cores and 40 threads. Base frequency is 2.6 GHz, with boost up to 4.8 GHz. L3 cache: 52.5 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: 48,991 points. Launch price was $1,989.
Processing Power
The Core Ultra 7 255HX packs 20 cores / 20 threads, matching the Xeon w7-3445's 20 cores. Boost clocks reach 5.2 GHz on the Core Ultra 7 255HX versus 4.8 GHz on the Xeon w7-3445 — a 8% clock advantage for the Core Ultra 7 255HX (base: 2.4 GHz vs 2.6 GHz). The Core Ultra 7 255HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Xeon w7-3445 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Core Ultra 7 255HX scores 49,765 against the Xeon w7-3445's 48,991 — a 1.6% lead for the Core Ultra 7 255HX. L3 cache: 30 MB (total) on the Core Ultra 7 255HX vs 52.5 MB on the Xeon w7-3445.
| Feature | Core Ultra 7 255HX | Xeon w7-3445 |
|---|---|---|
| Cores / Threads | 20 / 20 | 20 / 40 |
| Boost Clock | 5.2 GHz+8% | 4.8 GHz |
| Base Clock | 2.4 GHz | 2.6 GHz+8% |
| L3 Cache | 30 MB (total) | 52.5 MB+75% |
| L2 Cache | 3 MB (per core)+50% | 2 MB (per core) |
| Process | 3 nm-57% | Intel 7 nm |
| Architecture | Arrow Lake-HX (2025) | Sapphire Rapids (2023−2024) |
| PassMark | 49,765+2% | 48,991 |
| Geekbench 6 Single | 2,923 | — |
| Geekbench 6 Multi | 16,885 | — |
Memory & Platform
The Core Ultra 7 255HX uses the FCBGA2114 socket (PCIe 5.0), while the Xeon w7-3445 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 7 255HX versus 4800 on the Xeon w7-3445 — the Xeon w7-3445 supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w7-3445 supports up to 4096 of RAM compared to 192 GB — 182.1% more capacity for professional workloads. Memory channels: 2 (Core Ultra 7 255HX) vs 8 (Xeon w7-3445). PCIe lanes: 24 (Core Ultra 7 255HX) vs 112 (Xeon w7-3445) — the Xeon w7-3445 offers 88 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel HM870,Intel WM880 (Core Ultra 7 255HX) and W790 (Xeon w7-3445).
| Feature | Core Ultra 7 255HX | Xeon w7-3445 |
|---|---|---|
| Socket | FCBGA2114 | LGA4677 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-6400 | 4800+95900% |
| Max RAM Capacity | 192 GB+4915100% | 4096 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 112+367% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Xeon w7-3445 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core Ultra 7 255HX) vs VT-x, VT-d (Xeon w7-3445). The Core Ultra 7 255HX includes integrated graphics (Intel Arc Xe-LPG), while the Xeon w7-3445 requires a dedicated GPU. Direct competitor: Core Ultra 7 255HX rivals Ryzen 9 9850HX; Xeon w7-3445 rivals Threadripper PRO 7965WX.
| Feature | Core Ultra 7 255HX | Xeon w7-3445 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Xe-LPG | None |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d |
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