Changes

Cycle accurate emulation is basically trying to perfectly emulate timings right down to per-cycle accesses. So each individual component is emulated at exactly the right time, and in perfect sync etc. Which , which takes a performance hit. How much The size of the performance is taken hit depends on the way cycle accuracy is implemented and the skill of the coder.

===Circuit Chip accurate=== Circuit Chip accurate emulators work emulation works by simulating each logic chip on the board individually. They Not only does this take a tremendous amount of power to run(as in, even emulating something as simple as a Pong cabinet on a chip accurate level requires a pretty high-end system to run at full speed.), but they also require a incredible amount of effort to code. This accuracy method is pretty much useless. Although it is technically the only way to achieve true 100% accuracy, cycle accuracy is already near-perfect, to the point where any inaccuracies present in cycle accuracy are pretty much invisible to the end user (e.g. there are no known discrepancies between BSNES/Higan and a real SNES). Not only that, but cycle-accurate emulators have much lower system requirements and programming difficulty. There are currently no publicly-released chip accurate video game emulators in existence, and there will most likely never be one.