Intel Xeon Silver 4509Y
Expert rating7.7 / 10
- Brand:
- Intel
- Form Factor:
- Server & Enthusiast
- CPU Socket:
- LGA 4677
- Core/Thread Count:
- 8C/16T
- TDP:
- 125W
- iGPU:
- None
- CPU Series:
- Xeon Silver
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Manufacturer: Intel Last updated: 2026-09-12
Intel Xeon Silver 4509Y Review
Intel Xeon Silver 4509Y 8-core 16-thread server processor, 2.6GHz base / 3.6GHz boost, 125W TDP, Emerald Rapids, LGA 4677 socket
The Intel Xeon Silver 4509Y is a mainstream data center processor balancing core count and efficiency for general server workloads. It pairs 8 cores and 16 threads with a 2.6GHz base clock that boosts up to 3.6GHz and None graphics, all within a 125W envelope.
Performance and Architecture
With 8 cores and 16 threads, the Intel Xeon Silver 4509Y runs a 2.6GHz base clock that boosts up to 3.6GHz, backed by 22.5MB of L3 cache and None graphics on the Emerald Rapids architecture.
Platform and Deployment
The Intel Xeon Silver 4509Y uses the LGA 4677 platform in a 125W envelope, positioned as a mainstream data center processor balancing core count and efficiency for general server workloads..
Comparison to Alternatives
Within the Xeon Silver lineup in this catalog, the Intel Xeon Silver 4509Y sits at the 8-core tier, differentiated mainly by clock speed, TDP, and socket from its closest siblings. Against AMD's EPYC processors in this catalog at a similar tier, the Intel Xeon Silver 4509Y competes on platform ecosystem and per-core efficiency, while against Intel's own Xeon 6 (Granite/Sierra Rapids) parts in this catalog it occupies a narrower, more specialized deployment niche.
Specifications
Identity
| Product Line | Xeon |
|---|---|
| Model Number | Silver 4509Y |
| Codename | Emerald Rapids |
| Release Year | 2023 |
Segment and platform
| Market Segment | Server |
|---|---|
| Microarchitecture | Emerald Rapids |
| Socket | LGA4677 |
| Socket Status | Current |
| Process Node | 10 nm |
Core configuration
| Total Cores | 8 |
|---|---|
| Performance Cores | 8 |
| Efficiency Cores | 0 |
| Total Threads | 16 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 2.6 GHz |
|---|---|
| P-Core Boost Clock | 3.6 GHz |
Cache
| L3 Cache | 22.5 MB |
|---|
Power and thermal
| Base Power | 125 W |
|---|
Memory
| Memory Type | DDR5 |
|---|---|
| Max Memory Speed | 4400 MT/s |
| Memory Channels | 8 |
| Max Memory Capacity | 4096 GB |
| ECC Support | Yes |
Graphics and AI
| Integrated Graphics | No |
|---|---|
| Copilot Plus Certified | No |
Expansion
| PCIe Generation | PCIe 5.0 |
|---|---|
| PCIe Lanes | 80 |
| Form Factor | Server & Enthusiast |
|---|---|
| TDP | 125 W |
| iGPU | None |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.7 / 10
The Intel Xeon Silver 4509Y is a solid mainstream data center chip, well matched to general virtualization and server duty.
Best for
- General-purpose servers
- Virtualization
- Mid-size data centers
Not for
- Extreme core-count workloads
- AI training clusters
- Gaming builds
FAQs
What are the key specifications of the Intel Xeon Silver 4509Y?
The Intel Xeon Silver 4509Y is a processor from Intel. Key specs: Cores 8, Threads 16, Base Clock 2.6 GHz, Boost Clock 3.6 GHz, L3 Cache 22.5.
Will the Intel Xeon Silver 4509Y work with my current setup?
The Intel Xeon Silver 4509Y lists Socket is LGA 4677. 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 Silver 4509Y best suited to?
It suits general-purpose servers, virtualization, mid-size data centers.
What are the drawbacks of the Intel Xeon Silver 4509Y?
It is a poor fit for extreme core-count workloads, ai training clusters, gaming builds.