Who's got the smallest chip?

  Estimated
transistor
count
(Millions)		 Approximate
die size
(mm²)		 Fabrication
process node
G92b 754 256 55-nm TSMC
GT215 727 144 40-nm TSMC
Redwood 627 104 40-nm TSMC
Juniper 1040 166 40-nm TSMC
Cypress 2150 334 40-nm TSMC

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.


GT215 and Redwood in a staring contest


The 9800 GT's G92b chip


The GT215


Redwood


Juniper


Cypress