Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Theme
AMD
AMD Athlon II X4 638
FM1DDR34C / 4T65WLlano32nmEnd-of-life
Full Specifications
Detailed architecture, platform, memory, and feature data for this CPU.
Total Cores4
Total Threads4
Base Clock2.70 GHz
BCLK / Multiplier100 MHz / 27.0xx
CodenameLlano
MicroarchitectureLlano
Process Node32nm
FoundryGlobalFoundries
Die Size228.0 mm²
Transistors1.18 billion
Production StatusEnd-of-life
Market SegmentDesktop
Launch DateFeb 6, 2012
Instruction Sets
MMX3DNow!SSESSE2SSE3SSE4AAMD64NX bitAMD-V
About This Product
The Athlon II X4 638 is a quad-core desktop CPU from AMD's Llano microarchitecture, featuring integrated graphics. With a base clock of 2.7 GHz, it provides basic multi-core performance suitable for general computing tasks and light productivity. Its integrated graphics can handle casual gaming and HD video playback, but it is not suitable for modern demanding games or intensive applications. This CPU is an end-of-life product and is significantly outperformed by modern entry-level processors.
Pros
- Integrated graphics for basic display output
- Quad-core for general computing
- Low 65W TDP
Cons
- Outdated architecture and performance
- Limited gaming capability
- FM1 socket is obsolete
Verdict
