Increasing cache has the net effect of increasing hit ratio, sometimes substantially. With 20MB per die this may change the calculation of where things drop off

Increasing cache has the net effect of increasing hit ratio, sometimes substantially. With 20MB per die this may change the calculation of where things drop off. I have found that I can't reliably predict how a chip will perform, so I just wrote a bunch of benchmarks and it takes me about half an hour to see if the chip performs better or worse than I thought it would. Google's Broadwell VMs perform very well.