| AGP 3.0 specifications in depth |
 Abstract
AGP 3.0 is the
third generation of accelerated graphics for the Intel-compatible computers and will be officially introduced on 11/12/02. In contrast to AGP 2.0 the AGP 3.0 specification isn't just a derivation of an existing standard. AGP 3.0 is incompatible to AGP
2.0 – in theory. However, compatibility can be forced by implementing
the "Universal AGP 3.0 Motherboard" standard.
Another major difference is, that most of the specification's enhancements are
quite irrelevant for the gaming community, whereas the professionals will be
truly grateful. Intel states in its specification, that most of the enhancements
are specifically for workstations and professional users.
The following table shows a brief summary covering the existing AGP modes:
|
AGP
1.0 |
AGP
2.0 |
AGP
3.0 |
Signaling |
3.3V |
1.5V |
0.8V |
Protocol |
Pipelined
transactions,
Source synchronous clocking |
AGP
1.0 + Fast Writes |
AGP
2.0 + some enhancements, some deletions |
Speeds |
1x,
2x |
1x,
2x, 4x |
4x,
8x |
Connector |
3.3V
keyed |
1.5V
keyed,
Universal |
1.5V
keyed,
Universal |
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