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 Phenom X4 9850B
AM2+4C / 4T95WAgena65nmEnd-of-life
CPU image not available yet
Full Specifications
Detailed architecture, platform, memory, and feature data for this CPU.
Total Cores4
Total Threads4
Base Clock2.50 GHz
BCLK / Multiplier200 MHz / 12.5xx
CodenameAgena
MicroarchitectureAgena
Process Node65nm
Die Size285.0 mm²
Transistors0.45 billion
Production StatusEnd-of-life
Market SegmentDesktop
Launch DateAug 15, 2008
Instruction Sets
MMX3DNow!SSESSE2SSE3SSE4AAMD64NX bitCnQAMD-VHT3.0
About This Product
The AMD Phenom X4 9850B is a quad-core desktop CPU from the Phenom series, featuring the Agena microarchitecture. With a base clock of 2.5 GHz and a 95W TDP, it offers basic multi-core performance suitable for general computing tasks. Integrated graphics are dependent on motherboard chipset features, not the CPU itself. This end-of-life processor is significantly slower than modern CPUs and is not recommended for demanding applications or gaming.
Pros
- Quad-core processing for basic multitasking
- Compatible with AM2+ motherboards
- Low cost for legacy systems
Cons
- Outdated architecture, poor performance
- High power consumption for its class
- No integrated graphics on CPU die
