CPU REFERENCE CHARTS
 

CPU CONCEPTS OF INTEREST

CONCEPT EXPLANATION DIAGRAMS
FRONTSIDE BUS

With the advent of the Pentium Pro, terminology changed a bit. From here on out, the address bus and external data bus between the CPU, MCC, and RAM is called the frontside bus

BACKSIDE BUS

With the advent of the Pentium Pro, terminology changed a bit. From here on out the connection between the CPU and the L2 cache is called the backside bus.

 

CACHE MEMORY Frequently accessed memory

Level 1 Cache: Contained within the processor, very fast, very small amount of memory caches frequently accessed data from Level 2 Cache

Level 2 Cache: Secondary Cache (at one time located separately from the processor, Nowadays within the processor) fast, medium sized amount of memory caches frequently accessed data from RAM

RAM: Typically the largest amount of memory available to your system, Caches information frequently used by your HDD

HDD: Stores information for you, when used by applications like Internet explorer it too can have CACHE files with store frequently accessed information from the Internet websites you visi

 

   

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CPU PACKAGING REFERENCE CHART

PACKAGE PICTURE

DIPP (Dual Inline Pin Package)

OBSOLETE

8088
8086
80286

 

 PGA (Pin Grid Array)

OBSOLETE

80286
80386
80486

Pentium 60
Pentium  66

 

SPGA  (Staggered Pin Grid Array)

Pentium
Pentium PRO
AMD K5
AMD K6
CIRIX 6X86

 

PPGA (Plastic Pin Grid Array)

Redesign of the Staggered Pin Grid array, Advancements in CPU technology enabled manufacturers to redesign these processors using High-Thermal Plastics (Next generation of SPGA)

Pentium
Celeron
Athlon
Duron 

FCPGA (Flip Chip Pin Grid Array)

Outside looks like a PPGA

Some internal Technical improvements regarding the wiring of the cpu

 

PQFP (Plastic Quad Flat Pack)

CQFP
(Ceramic Quad Flat Pack)

OBSOLETE
 

80286
80386
80486

PLCC (Plastic Leaderless Chip Cartridge)
CLCC (Ceramic Leaderless Chip Cartridge)

OBSOLETE

 80286
 80386

 

SECC (Single Edge contact Cartridge
SEPP (Single Edge processor package)

INTEL SLOT 1
AMD   SLOT A

OBSOLETE

 Athlon

Celeron          SEPP (No encasing)
Pentium II         SECC (Fully encased)
Pentium III      SECC2 (Less encasing)

   

 

CPU SLOT/SOCKET REFERENCE CHART

PACKAGE AMD  INTEL SOCKET/SLOT
SOCKET 1 AM486DX-4, Am5x86

486SX/SX2, DX, DX2, DX4

Overdrive Processor

 

SOCKET 2 AM486DX-4, Am5x86

486SX/SX2, DX, DX2, DX4

Pentium Overdrive Processor

 

SOCKET 3 AM486DX-4, Am5x86

486SX/SX2, DX, DX2, DX4

Pentium Overdrive Processor

 

SOCKET 4  

Pentium 60-66Mhz, Pentium

Overdrive 120-133MHz

 

SOCKET 5 K5

Pentium 75-133MHz, Pentium

Overdrive 125-166, Pentium

Overdrive MMX 125-180 MHz,

Pentium MMX 166-200 MHz

SOCKET 6   486DX4 75-120 MHz

SOCKET 7  

Pentium 75-200MHz, Pentium

Overdrive 125-166 MHz,

Pentium Overdrive MMX 125-200MHz, Pentium MMX 166-

233MHz

 

SOCKET 8  

Pentium Pro 150-200MHz,

Pentium II Overdrive 300-333MHz

SLOT 1  

Celeron, Pentium II 233-

450MHz Pentium III 450 MHz-(and up).