Xeon W-11855M vs Xeon Gold 6126
Xeon W-11855M
Xeon Gold 6126
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 W-11855M
Performance Per Dollar Xeon Gold 6126
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon W-11855M | Xeon Gold 6126 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($200) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Tiger Lake-H (2021) / 10 nm SuperFin) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Xeon W-11855M | Xeon Gold 6126 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($200) | ✅ 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 W-11855M and Xeon Gold 6126
Xeon W-11855M
The Xeon W-11855M is manufactured by Intel. It was released in 11 May 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 6 cores and 12 threads. Base frequency is 3.2 GHz, with boost up to 4.9 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1787. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 17,462 points. Launch price was $450.
Xeon Gold 6126
The Xeon Gold 6126 is manufactured by Intel. It was released in 25 April 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 12 cores and 24 threads. Base frequency is 2.6 GHz, with boost up to 3.7 GHz. L3 cache: 19.25 MB. L2 cache: 12 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 125 Watt. Memory support: DDR4-2666. Passmark benchmark score: 17,492 points. Launch price was $1,776.
Processing Power
The Xeon W-11855M packs 6 cores / 12 threads, while the Xeon Gold 6126 offers 12 cores / 24 threads — the Xeon Gold 6126 has 6 more cores. Boost clocks reach 4.9 GHz on the Xeon W-11855M versus 3.7 GHz on the Xeon Gold 6126 — a 27.9% clock advantage for the Xeon W-11855M (base: 3.2 GHz vs 2.6 GHz). The Xeon W-11855M uses the Tiger Lake-H (2021) architecture (10 nm SuperFin), while the Xeon Gold 6126 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Xeon W-11855M scores 17,462 against the Xeon Gold 6126's 17,492 — a 0.2% lead for the Xeon Gold 6126. L3 cache: 18 MB (total) on the Xeon W-11855M vs 19.25 MB on the Xeon Gold 6126.
| Feature | Xeon W-11855M | Xeon Gold 6126 |
|---|---|---|
| Cores / Threads | 6 / 12 | 12 / 24+100% |
| Boost Clock | 4.9 GHz+32% | 3.7 GHz |
| Base Clock | 3.2 GHz+23% | 2.6 GHz |
| L3 Cache | 18 MB (total) | 19.25 MB+7% |
| L2 Cache | 1.25 MB (per core) | 12 MB+860% |
| Process | 10 nm SuperFin-29% | 14 nm |
| Architecture | Tiger Lake-H (2021) | Skylake (server) (2017−2018) |
| PassMark | 17,462 | 17,492 |
Memory & Platform
The Xeon W-11855M uses the FCBGA1787 socket (PCIe 5.0), while the Xeon Gold 6126 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon W-11855M | Xeon Gold 6126 |
|---|---|---|
| Socket | FCBGA1787 | LGA3647 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | — | 2666 |
| Max RAM Capacity | — | 768 |
| RAM Channels | — | 6 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 48 |
Advanced Features
Virtualization: not specified (Xeon W-11855M) / VT-x, VT-d (Xeon Gold 6126). Direct competitor: Xeon Gold 6126 rivals EPYC 7301.
| Feature | Xeon W-11855M | Xeon Gold 6126 |
|---|---|---|
| Integrated GPU | — | No |
| IGPU Model | — | None |
| Unlocked | — | No |
| AVX-512 | — | Yes |
| Virtualization | — | VT-x, VT-d |
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