Core Ultra 7 255HX vs Core Ultra 7 265HX
Core Ultra 7 255HX
Core Ultra 7 265HX
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 Core Ultra 7 265HX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 7 255HX | Core Ultra 7 265HX |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($450) |
| Longevity | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) |
💎 Value Proposition
| Insight | Core Ultra 7 255HX | Core Ultra 7 265HX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($450) |
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 Core Ultra 7 265HX
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.
Core Ultra 7 265HX
The Core Ultra 7 265HX 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 2.6 GHz, with boost up to 5.3 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: 48,975 points. Launch price was $500.
Processing Power
Both the Core Ultra 7 255HX and Core Ultra 7 265HX share an identical 20-core/20-thread configuration. Boost clocks reach 5.2 GHz on the Core Ultra 7 255HX versus 5.3 GHz on the Core Ultra 7 265HX — a 1.9% clock advantage for the Core Ultra 7 265HX (base: 2.4 GHz vs 2.6 GHz). Both are built on the Arrow Lake-HX (2025) architecture using a 3 nm process. In PassMark, the Core Ultra 7 255HX scores 49,765 against the Core Ultra 7 265HX's 48,975 — a 1.6% lead for the Core Ultra 7 255HX. Geekbench 6 single-core — the metric most relevant to gaming — records 2,923 vs 2,990, a 2.3% lead for the Core Ultra 7 265HX that directly translates to higher frame rates. Multi-core Geekbench: 16,885 vs 17,417 (3.1% advantage for the Core Ultra 7 265HX). Both processors carry 30 MB (total) of L3 cache.
| Feature | Core Ultra 7 255HX | Core Ultra 7 265HX |
|---|---|---|
| Cores / Threads | 20 / 20 | 20 / 20 |
| Boost Clock | 5.2 GHz | 5.3 GHz+2% |
| Base Clock | 2.4 GHz | 2.6 GHz+8% |
| L3 Cache | 30 MB (total) | 30 MB (total) |
| L2 Cache | 3 MB (per core) | 3 MB (per core) |
| Process | 3 nm | 3 nm |
| Architecture | Arrow Lake-HX (2025) | Arrow Lake-HX (2025) |
| PassMark | 49,765+2% | 48,975 |
| Geekbench 6 Single | 2,923 | 2,990+2% |
| Geekbench 6 Multi | 16,885 | 17,417+3% |
Memory & Platform
Both processors use the FCBGA2114 socket with PCIe 5.0. Both support up to DDR5-6400 memory speed. Both support up to 192 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Core Ultra 7 255HX) vs 20 (Core Ultra 7 265HX) — the Core Ultra 7 255HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel HM870,Intel WM880 (Core Ultra 7 255HX) and WM880,HM870 (Core Ultra 7 265HX).
| Feature | Core Ultra 7 255HX | Core Ultra 7 265HX |
|---|---|---|
| Socket | FCBGA2114 | FCBGA2114 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-6400 | DDR5-6400 |
| Max RAM Capacity | 192 GB | 192 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24+20% | 20 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Core Ultra 7 265HX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core Ultra 7 255HX) vs VT-x, VT-d (Core Ultra 7 265HX). Both include integrated graphics — Intel Arc Xe-LPG (Core Ultra 7 255HX) and Arc Xe-LPG Graphics 64EU (Core Ultra 7 265HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: Core Ultra 7 255HX rivals Ryzen 9 9850HX.
| Feature | Core Ultra 7 255HX | Core Ultra 7 265HX |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel Arc Xe-LPG | Arc Xe-LPG Graphics 64EU |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d |
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