Vertex Transmission Bandwidth
A fundamental bottleneck on the PC
- A complex 3D vertex can take up to 30 bytes to define
- Position, normal, texture coordinates, alpha value etc. etc…
- This is assuming the best case of long tri-strips - so only one vertex per polygon
- So where is the real bandwidth bottleneck?
- Need to consider how vertex data is formed
133MHz frontside bus = 1GB/s
Dual Direct Rambus channels = 3.2Gbyte/sec