Thursday, April 9, 2015

Pentium & power PC evolution

Pentium PC

8080: Eight bit machine with 8-bit data path to the memory.

8086: 16 bit machine with wider data path and larger register and

instruction queue that prefetch a few instructions before they are

executed.

80286: Extension of 8086 enabled addressing 16MB memory

instead of just 1 MB.

80386: 32 bit machine support multitasking meaning it could run

multiple programs at the same time

80486: Introduce the use of much more sophisticated and
powerful catch technology and sophisticated and instruction
pipe-lining.

Pentium: Pentium introduce super scalar technique which allow
multiple instruction to execute in parallel.

Pentium pro: Super scalar organization with aggressive use of
register renaming branch prediction.

Pentium 2: Design to process video , audio or graphics data
efficiently.

Pentium3: Support 3D graphics software.

Pentium 4: Includes enhancement of multimedia.


Power PC

601: 32 bit machine

603: Also 32 bit machine comparable in performance with 601. But with lower cost more efficient implementation.

604: 32 bit machine uses much more advance super scalar design technique to achieve greater performance.

620: 64 bit machine including 64bit register and data path.

740/750: Also know as G3 processor integrates two levels of cache in the main processor chip.

G4: Increases parallelism and internal speed of processor chip.

No comments:

Post a Comment