Comment Re:Hmm (Score 3, Interesting) 258
Several things...
1. AGP is unidirectional. The plugin card is always the bus master and the chipset is the slave. If the chipset wants to initiate a transaction, it has to do good ol' PCI.
2. No error correction/detection. AGP doesn't use parity/ECC because a flipped bit here and there in video data isn't that important. This could be very bad for more sensitive devices.
3. Only one device per bus. AGP is point-to-point.
1. AGP is unidirectional. The plugin card is always the bus master and the chipset is the slave. If the chipset wants to initiate a transaction, it has to do good ol' PCI.
2. No error correction/detection. AGP doesn't use parity/ECC because a flipped bit here and there in video data isn't that important. This could be very bad for more sensitive devices.
3. Only one device per bus. AGP is point-to-point.
