Apple Power Mac G5 User Manual download pdf (Page 8)

Native Compatibility with 32-Bit Application Code

On other platforms, switching to a 64-bit computer requires migrating to a 64-bit

operating system (and purchasing 64-bit applications) or running a 32-bit operating

system in a slow emulation mode. With the PowerPC G5, the transition to 64-bit

performance is seamless: Current 32-bit code—such as existing Mac OS X and Classic

applications—runs natively at processor speed, with no interruptions to your workflow

and no additional investment in software.

Unlike competing instruction sets, the PowerPC architecture was designed from the

beginning to run both 32-bit and 64-bit application code. This enables the G5 pro-

cessor to run Mac OS X natively for an immediate performance boost. In addition, as

applications are optimized and as Mac OS X is further enhanced for the PowerPC G5,

performance gains will be even greater.

State-of-the-Art Process Technology from IBM

The PowerPC G5 is fabricated in one of IBM’s world-class semiconductor manufacturing

facilities. It uses 130-nanometer circuitry with more than 1130 feet of ultrathin wiring—

nearly 800 times thinner than a human hair. With more than 58 million transistors, a

high-performance, silicon-on-insulator (SOI) process for faster operation, and eight layers

of copper interconnects for improved conductivity, this scalable design contributes to

clock speeds up to 2GHz.

Technology and

Performance Overview

Power Mac G5

IBM is a worldwide leader in processor

fabrication technologies, with a new

$3 billion, state-of-the-art facility in

East Fishkill, New York.

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Apple Power Mac G5 User Manual Page 8