Core Ultra 7 155H vs Xeon Gold 6143
Core Ultra 7 155H
Xeon Gold 6143
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 155H
Performance Per Dollar Xeon Gold 6143
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Ultra 7 155H | Xeon Gold 6143 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($342) |
| Longevity | ✨ Modern (Meteor Lake-H (2023) / 7 nm) | ✨ Modern (Legacy / 14 nm) |
💎 Value Proposition
| Insight | Core Ultra 7 155H | Xeon Gold 6143 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($342) |
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 155H and Xeon Gold 6143
Core Ultra 7 155H
The Core Ultra 7 155H is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake-H (2023) architecture. It features 16 cores and 22 threads. Base frequency is 3.8 GHz, with boost up to 4.8 GHz. L3 cache: 24 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 24 MB. Memory support: DDR5. Passmark benchmark score: 24,705 points. Launch price was $503.
Xeon Gold 6143
The Xeon Gold 6143 is manufactured by Intel. It was released in 2015-01-01. It features 16 cores and 32 threads. Base frequency is 2.8 GHz, with boost up to 4 GHz. L3 cache: 22 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2666. Passmark benchmark score: 24,786 points. Launch price was $800.
Processing Power
The Core Ultra 7 155H packs 16 cores / 22 threads, matching the Xeon Gold 6143's 16 cores. Boost clocks reach 4.8 GHz on the Core Ultra 7 155H versus 4 GHz on the Xeon Gold 6143 — a 18.2% clock advantage for the Core Ultra 7 155H (base: 3.8 GHz vs 2.8 GHz). The Core Ultra 7 155H is built on the Meteor Lake-H (2023) architecture. In PassMark, the Core Ultra 7 155H scores 24,705 against the Xeon Gold 6143's 24,786 — a 0.3% lead for the Xeon Gold 6143. L3 cache: 24 MB (total) on the Core Ultra 7 155H vs 22 MB on the Xeon Gold 6143.
| Feature | Core Ultra 7 155H | Xeon Gold 6143 |
|---|---|---|
| Cores / Threads | 16 / 22 | 16 / 32 |
| Boost Clock | 4.8 GHz+20% | 4 GHz |
| Base Clock | 3.8 GHz+36% | 2.8 GHz |
| L3 Cache | 24 MB (total)+9% | 22 MB |
| L2 Cache | 2 MB (per core) | — |
| Process | 7 nm-50% | 14 nm |
| Architecture | Meteor Lake-H (2023) | — |
| PassMark | 24,705 | 24,786 |
| Cinebench R23 Multi | 17,650 | — |
| Geekbench 6 Single | 2,384 | — |
| Geekbench 6 Multi | 12,433 | — |
Memory & Platform
The Core Ultra 7 155H uses the FCBGA2049 socket (PCIe 5.0), while the Xeon Gold 6143 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core Ultra 7 155H | Xeon Gold 6143 |
|---|---|---|
| Socket | FCBGA2049 | LGA3647 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | LPDDR5x-7467, DDR5-5600 | — |
| Max RAM Capacity | 96 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 28 | — |
Advanced Features
Virtualization: VT-x, VT-d, EPT (Core Ultra 7 155H) / not specified (Xeon Gold 6143). The Core Ultra 7 155H includes integrated graphics (Intel Arc Graphics (8 Xe-cores)), while the Xeon Gold 6143 requires a dedicated GPU. Primary use case: Core Ultra 7 155H targets Thin-and-light Performance / AI. Direct competitor: Core Ultra 7 155H rivals Ryzen 7 8840HS.
| Feature | Core Ultra 7 155H | Xeon Gold 6143 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel Arc Graphics (8 Xe-cores) | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d, EPT | — |
| Target Use | Thin-and-light Performance / AI | — |
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