Who's got the smallest chip?
Please note that the numbers in the table are somewhat approximate, since they're culled from various sources. Below are pictures of the various GPUs sized up, again approximately, next to a quarter for reference.
As you can see below, Redwood and the GT215 aren't too far off in terms of die size and transistor count (although Redwood is the leaner of the two). Cutting computing resources by half has enabled AMD to reduce the transistor count by about 413 million compared to Juniper, resulting in a 37% smaller die. Redwood ended up even smaller than AMD's previous $99 GPU, the 133-mm² RV740.