Anyone seen these?
http://pc.watch.impress.co.jp/docs/2007/1204/kaigai404.htm
vr-zone forums (newzhunter)
Translation- (Thanks to Wesker776)
Pic 1- Title: Estimated Trend of High End GPU's
Single GPU Card
R600 Generation
(top to bottom):
First box: Because die is large it has a wider memory interface
Second box: Huge (monolithic) GPU unit
Third Box: The link supports multi video cards for better performance
Dual GPU Card
R680 Generation
(top to bottom):
First Box: The memory is seperated (independant), and now a memory duplicate overhead now occurs.
Second Box: Between the GPU's, there is no connection
Third box (bottom left): Both GPU's perform independant tasks, and there is a possibility of execution overhead
Fourth box (bottom right): GPU die size is half of the previous high end
Dual Die GPU
R700 Generation?
(top to bottom):
First Box: Shared memory has minimum latency, and both can be accessed
Second Box (left): GPU die is half the size of previous high end die
Third Box (right): GPU's are connected to eachother via high bandwidth, low latency interconnect
Fourth Box (right): It is an Multi Chip Module design (multiple dies on the same substrate), and this allows high bandwidth connection
Fifth Box (left): The GPU's are connected very closely and perform together in tandem to minimise overhead.
Second Picture
Dual Die GPU Power Saving Schemes
Left Hand:
High Voltage
Right Hand:
Low Voltage
