Originally Posted by fleetfeather
I think you're greatly oversimplifying the changes in microarchitecture between generations of recent Intel CPUs, and underestimating how big of an impact such changes had on resulting performance
I don't doubt Intel changes chipsets more often than it needs to, though
I know they've made all sorts of changes, but if they had wanted to do it then making newer cpu's also backwards compatible would have been relatively simple. They could make an i7 8700K that would work in an 1156 or 1155 motherboard if they wanted to, but it would be hard mostly because the path they've chosen in the last 7yrs wasn't forged with compatibility in mind.
Hell they could probably have gone back to 1155 after 1150 relatively easily, they had platform management and UEFI on that, they would just need to update it. The i7 2700K was 95W so there was enough power there too.
Edit: I think I see the problem here.. you're mentioning architecture performance differences and relating them to a socket... An 115X motherboard doesn't really see or care much about the architecture of the cpu in it, all of that is mostly internal facing. It supplies requested voltages to certain pins, connects the dram directly to certain pins, connects the pci-e lane pins to the gpu slots (16x) and the chipset / PCH (4x, technically DMI but basically the same thing).
Have a look at these (1155 Z77
, 1150 Z370
) diagrams and note the (lack of) functional differences where the connection to the cpu occurs apart from display outputs for the iGPU instead of using the FDI like all other 115X sockets before 1151.
AM4 is designed in a similar way to 115X in this respect, except it has an additional 4x pci-e lanes intended for storage devices.Edited by VeritronX - 12/17/17 at 4:29am