Yeah. I bet part of why there's so much L3 per core group is that it's really expensive to go further away.
Seems like there're at least two approaches for future gens: widen the scope across which you can share L3 without a slow trip across the I/O die, or speed up the hop through the I/O die. Unsure what's actually a cost-effective change vs. just a pipe dream, though.
Seems like there're at least two approaches for future gens: widen the scope across which you can share L3 without a slow trip across the I/O die, or speed up the hop through the I/O die. Unsure what's actually a cost-effective change vs. just a pipe dream, though.