Core Ultra 7 255HX vs Xeon Gold 6554S
Core Ultra 7 255HX
Xeon Gold 6554S
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 Gold 6554S
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 7 255HX | Xeon Gold 6554S |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($2,836) |
| Longevity | ✨ Modern (Arrow Lake-HX (2025) / 3 nm) | ✨ Modern (Emerald Rapids (2023) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core Ultra 7 255HX | Xeon Gold 6554S |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($2,836) |
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 Gold 6554S
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 Gold 6554S
The Xeon Gold 6554S is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Emerald Rapids (2023) architecture. It features 36 cores and 72 threads. Base frequency is 2.2 GHz, with boost up to 4 GHz. L3 cache: 180 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 270 Watt. Memory support: DDR5 @ 5200 MT/s (1 DPC). Passmark benchmark score: 50,777 points. Launch price was $3,157.
Processing Power
The Core Ultra 7 255HX packs 20 cores / 20 threads, while the Xeon Gold 6554S offers 36 cores / 72 threads — the Xeon Gold 6554S has 16 more cores. Boost clocks reach 5.2 GHz on the Core Ultra 7 255HX versus 4 GHz on the Xeon Gold 6554S — a 26.1% clock advantage for the Core Ultra 7 255HX (base: 2.4 GHz vs 2.2 GHz). The Core Ultra 7 255HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Xeon Gold 6554S uses Emerald Rapids (2023) (Intel 7 nm). In PassMark, the Core Ultra 7 255HX scores 49,765 against the Xeon Gold 6554S's 50,777 — a 2% lead for the Xeon Gold 6554S. L3 cache: 30 MB (total) on the Core Ultra 7 255HX vs 180 MB (total) on the Xeon Gold 6554S.
| Feature | Core Ultra 7 255HX | Xeon Gold 6554S |
|---|---|---|
| Cores / Threads | 20 / 20 | 36 / 72+80% |
| Boost Clock | 5.2 GHz+30% | 4 GHz |
| Base Clock | 2.4 GHz+9% | 2.2 GHz |
| L3 Cache | 30 MB (total) | 180 MB (total)+500% |
| L2 Cache | 3 MB (per core)+50% | 2 MB (per core) |
| Process | 3 nm-57% | Intel 7 nm |
| Architecture | Arrow Lake-HX (2025) | Emerald Rapids (2023) |
| PassMark | 49,765 | 50,777+2% |
| 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 Gold 6554S 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 5200 on the Xeon Gold 6554S — the Xeon Gold 6554S supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6554S 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 Gold 6554S). PCIe lanes: 24 (Core Ultra 7 255HX) vs 80 (Xeon Gold 6554S) — the Xeon Gold 6554S offers 56 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel HM870,Intel WM880 (Core Ultra 7 255HX) and C741 (Xeon Gold 6554S).
| Feature | Core Ultra 7 255HX | Xeon Gold 6554S |
|---|---|---|
| Socket | FCBGA2114 | LGA4677 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-6400 | 5200+103900% |
| Max RAM Capacity | 192 GB+4915100% | 4096 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 80+233% |
Advanced Features
Only the Core Ultra 7 255HX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6554S supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core Ultra 7 255HX) vs VT-x, VT-d (Xeon Gold 6554S). The Core Ultra 7 255HX includes integrated graphics (Intel Arc Xe-LPG), while the Xeon Gold 6554S requires a dedicated GPU. Direct competitor: Core Ultra 7 255HX rivals Ryzen 9 9850HX; Xeon Gold 6554S rivals EPYC 9384X.
| Feature | Core Ultra 7 255HX | Xeon Gold 6554S |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Xe-LPG | None |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d |
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