Xeon Gold 6143 vs Core Ultra 7 155H
Xeon Gold 6143
Core Ultra 7 155H
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 Xeon Gold 6143
Performance Per Dollar Core Ultra 7 155H
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6143 | Core Ultra 7 155H |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($342) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Legacy / 14 nm) | ✨ Modern (Meteor Lake-H (2023) / 7 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6143 | Core Ultra 7 155H |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($342) | ✅ More affordable ($0) |
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 Xeon Gold 6143 and Core Ultra 7 155H
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.
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.
Processing Power
The Xeon Gold 6143 packs 16 cores / 32 threads, matching the Core Ultra 7 155H's 16 cores. Boost clocks reach 4 GHz on the Xeon Gold 6143 versus 4.8 GHz on the Core Ultra 7 155H — a 18.2% clock advantage for the Core Ultra 7 155H (base: 2.8 GHz vs 3.8 GHz). The Core Ultra 7 155H is built on the Meteor Lake-H (2023) architecture. In PassMark, the Xeon Gold 6143 scores 24,786 against the Core Ultra 7 155H's 24,705 — a 0.3% lead for the Xeon Gold 6143. L3 cache: 22 MB on the Xeon Gold 6143 vs 24 MB (total) on the Core Ultra 7 155H.
| Feature | Xeon Gold 6143 | Core Ultra 7 155H |
|---|---|---|
| Cores / Threads | 16 / 32 | 16 / 22 |
| Boost Clock | 4 GHz | 4.8 GHz+20% |
| Base Clock | 2.8 GHz | 3.8 GHz+36% |
| L3 Cache | 22 MB | 24 MB (total)+9% |
| L2 Cache | — | 2 MB (per core) |
| Process | 14 nm | 7 nm-50% |
| Architecture | — | Meteor Lake-H (2023) |
| PassMark | 24,786 | 24,705 |
| Cinebench R23 Multi | — | 17,650 |
| Geekbench 6 Single | — | 2,384 |
| Geekbench 6 Multi | — | 12,433 |
Memory & Platform
The Xeon Gold 6143 uses the LGA3647 socket (PCIe 3.0), while the Core Ultra 7 155H uses FCBGA2049 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Xeon Gold 6143 | Core Ultra 7 155H |
|---|---|---|
| Socket | LGA3647 | FCBGA2049 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | — | LPDDR5x-7467, DDR5-5600 |
| Max RAM Capacity | — | 96 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 28 |
Advanced Features
Virtualization: not specified (Xeon Gold 6143) / VT-x, VT-d, EPT (Core Ultra 7 155H). 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 | Xeon Gold 6143 | Core Ultra 7 155H |
|---|---|---|
| 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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