1. Central Processing Units (CPU’s)
Written by Tim Keyser
Georgia CTAE Resource Network
2010

2. Central Processing Units
The CPU essentially functions as the brain of the computer.

3. Manufacturers
Intel and Advanced Micro Devices (AMD) are the two largest manufacturers of CPU’s.
Intel is substantially larger than AMD but they both make CPU’s found in common computer systems.

4. Intel
Intel currently manufactures the fastest CPU’s on the market, and their CPU’s are often more expensive than those made by AMD.
Intel’s CPU’s use names such as Pentium, Celeron, Core2 Duo, Core 2 Quad, Core i3, Core i5, and Core i7.

5. AMD
AMD’s CPU’s are found in the same spectrum of computers which use Intel CPU’s, but they are often less expensive.
AMD CPU’s use names such as Sempron, Athlon 64 X2, Athlon II, Phenom X2, Phenom X4, and Phenom II.
Both manufacturers develop innovative technologies that lead to advancements in the field.

6. PGA
Pin Grid Array CPU’s have pins on the CPU that plug into a motherboard socket.

7. LGA
Land Grid Array CPU’s have Pins on the motherboard and contact points on the CPU.

8. Factors that affect CPU price:
Processor Speed
CPU Interface (Motherboard Dependent)
Number of Cores
Cache
Bus Speed
Manufacturer

9. Which to Purchase?
Both AMD and Intel make excellent CPU’s. Always perform research, read reviews, and make your decision based on the intended use of the computer and the allotted budget.