Size does matter. The major factor limiting the speed of something like a CPU is the time that it takes for an electrical signal to propagate from one point to another. During each clock cycle many signals have to move across the CPU die. You can make the CPU bigger, but then you have to run it slower to allow for the increased signal propagation time.
Size does matter. The major factor limiting the speed of something like a CPU is the time that it takes for an electrical signal to propagate from one point to another. During each clock cycle many signals have to move across the CPU die. You can make the CPU bigger, but then you have to run it slower to allow for the increased signal propagation time.