Comment Re:He's mostly right (Score 1) 406
"When you push the performance, the architecture doesn't matter as much, because most of the energy is spent figuring out what to run and when to run it."
I doubt that.
Hyperthreading, an Intel tech, significantly increases speed while not doing the same to power consumption or die size. Another Intel only tech, power boost allows them to run the processor at an unsustainable clock speed for a short period of time. There's also a concept of pipelining that allows multiple instructions from a single thread to run staggered as long as they won't collide in their use of a particular component within the CPU architecture and don't have hard inter-dependencies such as reading the result of the previous operation.
Basically, features specific to a CPU architecture very much impact execution performance and efficiency. I guess you could have been talking strictly about the instruction set but that's only a very small part of a CPU architecture.
I doubt that.
Hyperthreading, an Intel tech, significantly increases speed while not doing the same to power consumption or die size. Another Intel only tech, power boost allows them to run the processor at an unsustainable clock speed for a short period of time. There's also a concept of pipelining that allows multiple instructions from a single thread to run staggered as long as they won't collide in their use of a particular component within the CPU architecture and don't have hard inter-dependencies such as reading the result of the previous operation.
Basically, features specific to a CPU architecture very much impact execution performance and efficiency. I guess you could have been talking strictly about the instruction set but that's only a very small part of a CPU architecture.