Core Ultra 7 255HX vs EPYC 4465P
Core Ultra 7 255HX
EPYC 4465P
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 EPYC 4465P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 7 255HX | EPYC 4465P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($399) |
| Longevity | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) | ✨ Modern (Grado (2025) / 4 nm) |
💎 Value Proposition
| Insight | Core Ultra 7 255HX | EPYC 4465P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($399) |
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 EPYC 4465P
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.
EPYC 4465P
The EPYC 4465P is manufactured by AMD. It was released in 13 May 2025 (less than a year ago). It is based on the Grado (2025) architecture. It features 12 cores and 24 threads. Base frequency is 3.4 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 50,216 points. Launch price was $399.
Processing Power
The Core Ultra 7 255HX packs 20 cores / 20 threads, while the EPYC 4465P offers 12 cores / 24 threads — the Core Ultra 7 255HX has 8 more cores. Boost clocks reach 5.2 GHz on the Core Ultra 7 255HX versus 5.4 GHz on the EPYC 4465P — a 3.8% clock advantage for the EPYC 4465P (base: 2.4 GHz vs 3.4 GHz). The Core Ultra 7 255HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the EPYC 4465P uses Grado (2025) (4 nm). In PassMark, the Core Ultra 7 255HX scores 49,765 against the EPYC 4465P's 50,216 — a 0.9% lead for the EPYC 4465P. L3 cache: 30 MB (total) on the Core Ultra 7 255HX vs 64 MB (total) on the EPYC 4465P.
| Feature | Core Ultra 7 255HX | EPYC 4465P |
|---|---|---|
| Cores / Threads | 20 / 20+67% | 12 / 24 |
| Boost Clock | 5.2 GHz | 5.4 GHz+4% |
| Base Clock | 2.4 GHz | 3.4 GHz+42% |
| L3 Cache | 30 MB (total) | 64 MB (total)+113% |
| L2 Cache | 3 MB (per core)+200% | 1 MB (per core) |
| Process | 3 nm-25% | 4 nm |
| Architecture | Arrow Lake-HX (2025) | Grado (2025) |
| PassMark | 49,765 | 50,216 |
| 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 EPYC 4465P uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 7 255HX versus 5200 on the EPYC 4465P — the EPYC 4465P supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 7 255HX supports up to 192 GB of RAM compared to 128 — 40% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Core Ultra 7 255HX) vs 28 (EPYC 4465P) — the EPYC 4465P offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel HM870,Intel WM880 (Core Ultra 7 255HX) and AM5 (EPYC 4465P).
| Feature | Core Ultra 7 255HX | EPYC 4465P |
|---|---|---|
| Socket | FCBGA2114 | AM5 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-6400 | 5200+103900% |
| Max RAM Capacity | 192 GB+157286300% | 128 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 28+17% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the EPYC 4465P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core Ultra 7 255HX) vs VT-x, VT-d, AMD-V (EPYC 4465P). Both include integrated graphics — Intel Arc Xe-LPG (Core Ultra 7 255HX) and AMD Radeon Graphics (EPYC 4465P) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: Core Ultra 7 255HX rivals Ryzen 9 9850HX; EPYC 4465P rivals Core i7-14700K.
| Feature | Core Ultra 7 255HX | EPYC 4465P |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel Arc Xe-LPG | AMD Radeon Graphics |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d, AMD-V |
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