It introduced a dual-channel memory interface to the mainstream market, doubling theoretical bandwidth.
Far more complex memory interfaces exist, but this is the least that can work.
Spock said, "I believe, Captain, that you are referring to her memory augmentationstcranial interface."
A low-cost version, known as the TNT2 M64, was produced with the memory interface reduced from 128-bit to 64-bit.
Card with the 128-bit memory interface and the highest memory bandwidth, but slightly lower 3D vertex rendering.
It has DDR2 type memory and uses 64-bits memory interface.
Key differences are in the memory interface and services, also the instruction decode is done differently.
The 415 variant again has the dual-channel memory interface, but has no integrated graphics.
The simplest arrangement is to use one, the bus manager, to manage the memory interface, and the others to perform calculations.
CL-GD5434 - Alpine family chip with 64-bit internal memory interface.