Intel SR20M Xeon E5-1607V3 3.1GHz CPU

Name: Intel SR20M Xeon E5-1607V3 3.1GHz CPU
Brand: Intel
SKU: SR20M

Overview

The Intel Xeon E5-1607V3 is a quad-core processor operating at a fixed 3.1 GHz clock speed, built on Intel's Haswell microarchitecture for the LGA 2011-3 platform. With 10MB of L3 cache and a 2 GT/s bus speed, it is positioned for professional workstation tasks where clock speed consistency matters — applications like CAD modeling, simulation software, and content creation tools that benefit from stable per-core performance and ECC memory support.

The trade-offs are clear: at 140W TDP, this processor draws significantly more power and generates more heat than modern equivalents, and the lack of hyper-threading means it tops out at four threads. It does not feature turbo boost, so the 3.1 GHz speed is both its floor and ceiling. For users building new systems, current-generation alternatives offer far better performance per watt. However, as a replacement or upgrade for existing LGA 2011-3 workstations, the E5-1607V3 provides proven Xeon reliability and compatibility with the robust memory and I/O capabilities of the X99 and C612 chipset ecosystem.

Specifications

Cores

4

Threads

4

Clock Speed

3.1 GHz

Cache

10 MB L3

Bus Speed

2 GT/s

TDP

140W

Socket

LGA 2011-3

Architecture

Haswell-EP

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Pros & Cons

👍 Pros

Fixed 3.1 GHz clock speed delivers consistent, predictable performance without turbo variance
10MB of L3 cache supports efficient data access for professional workloads
LGA 2011-3 socket allows pairing with high-capacity ECC memory on compatible platforms
Xeon-class reliability with support for ECC memory reduces the risk of data corruption

👎 Cons

140W TDP demands robust cooling and increases power consumption compared to newer processors
Only four cores with no hyper-threading limits multithreaded application performance
Based on the older Haswell architecture, lacking IPC improvements found in newer generations
No turbo boost capability means the clock speed cannot scale up for single-threaded bursts

Frequently Asked Questions

What socket does the Intel Xeon E5-1607V3 use?

It uses the LGA 2011-3 socket, compatible with Intel C612 chipset motherboards designed for the Haswell-EP platform.

Does this processor support hyper-threading?

No, the E5-1607V3 has four physical cores without hyper-threading, so it provides four threads total.

What is the TDP of this Xeon E5-1607V3?

The thermal design power is 140W, so adequate cooling and a compatible power supply are necessary.

Is this processor suitable for a workstation or a server?

It is primarily designed for single-socket workstation use where consistent clock speed matters more than high thread counts, such as CAD or certain engineering applications.