Yeah, 4770 wasn't new...
It is quite a modified RV770.
Actually we are pretty sure that it is 640 shaders, thanks to die shots.
If they are still only getting, supposedly, ~20% yields on a salvage part then TSMC's problem is much worse than we thought.
A test chip? What is the point of designing and developing a GPU for 40nm and then not using it?
Talk about a waste of time and resources.





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