Intel SR0LS Xeon E5-2403 1.8GHz Server CPU

Name: Intel SR0LS Xeon E5-2403 1.8GHz Server CPU
Brand: Intel
SKU: SR0LS

Overview

The Intel Xeon E5-2403 (SR0LS) is a quad-core server processor built on the Sandy Bridge-EN architecture, targeting entry-level server and workstation deployments. Operating at a base frequency of 1.8GHz with 10MB of SmartCache, it's designed for environments where power efficiency and steady throughput matter more than raw single-threaded speed. The 80W TDP makes it a practical choice for dense rack configurations or smaller server rooms where heat management is a concern.

This processor fits into the LGA 1356 socket ecosystem, which was designed as a more affordable alternative to the full LGA 2011 platform. While it lacks hyper-threading and turbo boost capabilities found in higher-tier Xeon models, the E5-2403 remains a solid option for file servers, light database work, and basic web hosting. Its bus speed of 6.4 GT/s provides adequate bandwidth for these use cases, though organizations with growing compute demands should consider whether the limited upgrade path of the LGA 1356 platform aligns with their long-term plans.

Specifications

Brand

Intel

Model

E5-2403 (SR0LS)

Cores

4

Threads

4

Clock Speed

1.8GHz

Cache

10MB SmartCache

Bus Speed

6.4 GT/s

TDP

80W

Socket Type

LGA 1356

Similar Products

Other products from the same family that visitors often consider:

✓ Available

Pros & Cons

👍 Pros

Low 80W TDP keeps power consumption and cooling requirements modest
10MB of SmartCache helps reduce memory latency for repeated data access
Quad-core design handles multiple concurrent server processes
LGA 1356 platform offers a cost-effective entry point for server builds

👎 Cons

1.8GHz clock speed is relatively low and there is no turbo boost on this model
Lacks hyper-threading, limiting thread count to four
LGA 1356 is an older platform with limited upgrade paths
Does not support DDR4 memory, only DDR3

Frequently Asked Questions

What socket type does the Intel Xeon E5-2403 use?

It uses the LGA 1356 socket, so you'll need a compatible server motherboard with that socket type.

Does the E5-2403 support hyper-threading?

No, the E5-2403 is a quad-core processor without hyper-threading, providing four threads total.

What is the thermal design power (TDP) of this processor?

The TDP is 80W, making it one of the more power-efficient options in the Xeon E5-2400 series.

Is this processor suitable for virtualization workloads?

It can handle light virtualization, but with four cores at 1.8GHz and no hyper-threading, it's best suited for entry-level server tasks rather than demanding virtual environments.