AMD

AMD 640 Athlon II X4 Quad-Core CPU

4.2 (196 reviews)

Affordable quad-core desktop power with 3.0 GHz speed and AM3 socket compatibility for everyday multitasking.

$68.02*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The AMD Athlon II X4 640 is a quad-core desktop processor clocked at 3.0 GHz, built on AMD's proven architecture for reliable everyday computing. With four physical cores, it handles multitasking and productivity workloads effectively, allowing users to run multiple applications simultaneously without significant slowdowns. The processor features HyperTransport Technology for fast data transfer between system components and AMD PowerNow Technology for intelligent power management that scales energy usage based on demand.

Designed for the AM3 socket platform, the Athlon II X4 640 serves as a cost-effective upgrade path for users looking to add quad-core capability to compatible motherboards. Its 2MB L2 cache supports general-purpose computing tasks, though users should be aware that this processor omits L3 cache found on AMD's higher-tier Phenom II lineup. With a 95W thermal envelope, adequate cooling is recommended. For users seeking a no-frills quad-core processor for web browsing, office applications, and light content creation, the Athlon II X4 640 delivers solid value.

Key Features

AMD64 Technology

AMD PowerNow Technology

HyperTransport Technology

Specifications

Brand
AMD
Model
640 (ADX640WFGMBOX)
Processor Series
Athlon II X4
Cores
4 (Quad-Core)
Clock Speed
3.0 GHz
Socket Type
AM3
Cache
2 MB L2
TDP
95W
Architecture
AMD64
Technologies
AMD PowerNow, HyperTransport

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Pros & Cons

👍 Pros

  • Four cores at 3.0 GHz provide solid multitasking capability for everyday desktop use.
  • HyperTransport Technology delivers efficient communication between the processor and other system components.
  • AMD PowerNow Technology helps reduce power consumption and heat during idle or light workloads.
  • AM3 socket compatibility makes it a straightforward upgrade for many existing motherboards.
  • Budget-friendly quad-core option for users who don't need the latest architecture.

👎 Cons

  • Lacks L3 cache, which limits performance in cache-sensitive applications compared to Phenom II processors.
  • The 95W TDP runs warmer than more modern energy-efficient processors.
  • AM3 socket is a legacy platform with no upgrade path to newer AMD architectures.
  • No integrated graphics, so a dedicated graphics card is required.

Frequently Asked Questions

This processor uses the AM3 socket, so it's compatible with AM3 motherboards.
Yes, it includes AMD64 Technology for full 64-bit OS and application support.
The Athlon II X4 640 has a 95W TDP, which is standard for desktop processors of this class.
Yes, it features AMD PowerNow Technology, which dynamically adjusts clock speed and voltage to reduce power consumption during lighter workloads.
It has 2MB of L2 cache. Note that the Athlon II X4 series does not include L3 cache.