Does the overall physical size of a CPU chip affect its speed?

darkstar845 · Apr 29, 2015

I was just curious about this stuff.
If we were to expand the size of a CPU chip/die (something like core i7 4770k) to 10 times its physical size by elongating the connecting wires or bus between the CPU components like cores, IMC, cache, etc. Will that make CPU's performance slower?

Mr5oh · Apr 29, 2015

Yes. Perhaps not to a noticeable degree, but everything getting larger, means things have to travel farther, thus being slower.

laviniuc · Apr 29, 2015

it would not heat as much but that's the only advantage i suppose. maybe less current leakage. the chip itself is not just wide, it's also tall, built on layers, i'm sure the designers are debating this on any new cpu and come up with a solution. they want to keep the area as small as possible too such that more cpu cores can fit on a single die when building them.

smackers_12 · Apr 29, 2015

It wouldn't be noticeable. But you could probably overclock it better as there is more surface area to dissipate heat.

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Does the overall physical size of a CPU chip affect its speed?

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