Intel Xeon W-3275M
- Boost/Base Clock:
- 4.4 GHz / 2.5 GHz
- Core/Thread Count:
- 28 Core / 56 Thread
- Cache:
- 38.5MB L3 + 28MB L2 + 1.75MB L1
- TDP:
- 205 Watts
- CPU Process Node:
- 14 Nanometers
- CPU Socket:
- LGA 3647
- CPU Series:
- Cascade Lake
- Memory Support:
- DDR4-2933 ECC RDIMM
- Form Factor:
- Server & Enthusiast
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Manufacturer: Intel Last updated: September 9, 2026
Intel Xeon W-3275M Review
The Intel Xeon W-3275M is a 28-core, 56-thread workstation processor built on Cascade Lake, running a 2.5 GHz base clock that boosts to 4.4 GHz within a 205 Watt TDP on the LGA 3647 socket.
The "M" suffix denotes a memory-expanded configuration supporting considerably larger RAM capacities than the standard W-3275, targeting workstation users running memory-intensive simulation and rendering workloads.
Platform
This workstation chip requires a specialized LGA 3647 motherboard, typically paired with hexa-channel DDR4 memory, with the "M" suffix specifically enabling expanded memory capacity support beyond the standard variant.
How Is the Xeon W-3275M in Terms of Performance
With 28 cores and 56 threads plus expanded memory capacity support, this chip targets the most demanding memory-intensive workstation workloads: large-scale simulation, rendering, and scientific computing.
Benchmarks
As a genuine 28-core Cascade Lake workstation chip with expanded memory support, this processor delivers extreme multi-threaded throughput specifically suited to memory-intensive professional workloads where its expanded RAM capacity is the key differentiator over the standard W-3275.
Specifications
Identity
| Brand | Intel |
|---|---|
| Product Line | Xeon W |
| Product Line | Xeon |
| Model Number | W-3275M |
| Codename | Cascade Lake |
| Release Year | 2019 |
Segment and platform
| Market Segment | Workstation |
|---|---|
| Microarchitecture | Cascade Lake, Xeon W |
| Socket | Other |
| Socket Status | End of Life |
| Process Node | 14 nm |
| Process Node | 14 nm |
Core configuration
| Total Cores | 28 |
|---|---|
| Performance Cores | 28 |
| Efficiency Cores | 0 |
| Total Threads | 56 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 2.5 GHz |
|---|---|
| P-Core Boost Clock | 4.4 GHz |
| Unlocked Multiplier | No |
Cache
| L2 Cache | 28 MB |
|---|---|
| L3 Cache | 38.5 MB |
Power and thermal
| Base Power | 205 W |
|---|
Memory
| Memory Type | DDR4-2933 ECC RDIMM |
|---|---|
| Memory Type | DDR4 |
| Max Memory Speed | 2933 MT/s |
| Memory Channels | 6 |
| Max Memory Capacity | 2048 GB |
| ECC Support | Yes |
Graphics and AI
| Integrated Graphics | No |
|---|
Expansion
| PCIe Generation | PCIe 3.0 |
|---|---|
| PCIe Lanes | 64 |
Commercial
| Launch MSRP | 7453 USD |
|---|
| Core/Thread Count | 28 Core / 56 Thread |
|---|---|
| TDP | 205 W |
| Cache | 38.5MB L3 + 28MB L2 + 1.75MB L1 |
| Boost/Base Clock | 4.4 GHz / 2.5 GHz |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Memory-intensive professional workstation workloads needing expanded RAM capacity beyond the standard W-3275
Not for
- Anyone outside extreme professional workstation use — this is specialized, expensive hardware far beyond consumer needs
FAQs
What are the key specifications of the Intel Xeon W-3275M?
The Intel Xeon W-3275M is a processor from Intel. Key specs: Boost/Base Clock 4.4 GHz / 2.5 GHz, Core/Thread Count 28 Core / 56 Thread, Cache 38.5MB L3 + 28MB L2 + 1.75MB L1, TDP 205 Watts, CPU Process Node 14 Nanometers.
Will the Intel Xeon W-3275M work with my current setup?
The Intel Xeon W-3275M lists CPU Socket is LGA 3647. 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 Intel Xeon W-3275M best suited to?
It suits memory-intensive professional workstation workloads needing expanded ram capacity beyond the standard w-3275.
What are the drawbacks of the Intel Xeon W-3275M?
It is a poor fit for anyone outside extreme professional workstation use — this is specialized, expensive hardware far beyond consumer needs.