11th Gen Intel Xeon W-11855M
- iGPU:
- Intel UHD Graphics Xe 750 (32 EU)
- Boost/Base Clock:
- 4.8 GHz / 3.2 GHz
- Core/Thread Count:
- 6 Core / 12 Thread
- Cache:
- 18MB L3 + 7.5MB L2 + 480KB L1
- TDP:
- 45 Watts
- CPU Socket:
- BGA1499
- CPU Series:
- Tiger Lake
- Memory Support:
- DDR4-3200
- Form Factor:
- Laptop
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Manufacturer: Intel Last updated: September 9, 2026
11th Gen Intel Xeon W-11855M Review
The 11th Gen Intel Xeon W-11855M is a mobile workstation processor, a 6-core, 12-thread Tiger Lake chip running a genuinely high 3.2 GHz base clock that boosts to 4.8 GHz within a 45 Watt TDP.
Sitting below the flagship W-11955M in Intel's mobile Xeon W stack, this chip offers the same workstation-focused reliability features at a more accessible 6-core tier for CAD and engineering professionals.
Intel UHD Graphics Xe 750 (32 EU)
A modest integrated GPU relative to Tiger Lake's higher-EU configurations, reflecting this chip's design priority around pairing with a professional discrete GPU for workstation-class rendering.
How Is the Xeon W-11855M in Terms of Performance
The 6-core, 12-thread layout with a genuinely high 3.2 GHz base clock gives this chip solid mobile workstation performance, with Xeon-specific ECC memory support and professional certifications appealing to CAD and engineering professionals at a more accessible tier than the flagship W-11955M.
Benchmarks
As a 6-core Tiger Lake mobile Xeon chip with a strong 4.8 GHz boost ceiling, this processor delivers solid workstation-class mobile performance, positioned below the flagship 8-core W-11955M within Intel's mobile Xeon W stack.
Specifications
Identity
| Brand | Intel |
|---|---|
| Product Line | Xeon W |
| Product Line | Xeon |
| Model Number | W-11855M |
| Codename | Tiger Lake |
| Release Year | 2021 |
Segment and platform
| Market Segment | Workstation |
|---|---|
| Microarchitecture | Tiger Lake, Xeon W Mobile |
| Socket | BGA |
| Socket Status | End of Life |
| Process Node | 10 nm |
Core configuration
| Total Cores | 6 |
|---|---|
| Performance Cores | 6 |
| Efficiency Cores | 0 |
| Total Threads | 12 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 3.2 GHz |
|---|---|
| P-Core Boost Clock | 4.8 GHz |
Cache
| L2 Cache | 7.5 MB |
|---|---|
| L3 Cache | 18 MB |
Power and thermal
| Base Power | 45 W |
|---|
Memory
| Memory Type | DDR4 |
|---|---|
| Max Memory Speed | 3200 MT/s |
| Memory Channels | 2 |
| ECC Support | Yes |
Graphics and AI
| Integrated Graphics | Yes |
|---|---|
| iGPU Model | Intel UHD Graphics Xe 750 |
| iGPU Compute Units | 32 |
Expansion
| PCIe Generation | PCIe 4.0 |
|---|
Commercial
| Retail Availability | Soldered Only |
|---|
| Core/Thread Count | 6 Core / 12 Thread |
|---|---|
| TDP | 45 W |
| iGPU | Intel UHD Graphics Xe 750 (32 EU) |
| Cache | 18MB L3 + 7.5MB L2 + 480KB L1 |
| Boost/Base Clock | 4.8 GHz / 3.2 GHz |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Mobile workstations for CAD and engineering professionals wanting Xeon reliability features at a more accessible 6-core tier
Not for
- Professionals needing maximum multi-threaded throughput — the 8-core W-11955M offers more
FAQs
What are the key specifications of the 11th Gen Intel Xeon W-11855M?
The 11th Gen Intel Xeon W-11855M is a processor from Intel. Key specs: iGPU Intel UHD Graphics Xe 750 (32 EU), Boost/Base Clock 4.8 GHz / 3.2 GHz, Core/Thread Count 6 Core / 12 Thread, Cache 18MB L3 + 7.5MB L2 + 480KB L1, TDP 45 Watts.
Will the 11th Gen Intel Xeon W-11855M work with my current setup?
The 11th Gen Intel Xeon W-11855M lists CPU Socket is BGA1499. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the 11th Gen Intel Xeon W-11855M best suited to?
It suits mobile workstations for cad and engineering professionals wanting xeon reliability features at a more accessible 6-core tier.
What are the drawbacks of the 11th Gen Intel Xeon W-11855M?
It is a poor fit for professionals needing maximum multi-threaded throughput — the 8-core w-11955m offers more.