The Switch GPU does clock down to 307MHz when undocked. In docked mode, it can run at 768MHz, about 2.5x faster. CPU and memory speeds are unaffected.
The built in screen is fairly low resolution so there are potentially fewer pixels to push when the Switch is undocked. It remains to be seen exactly how quality/performance will be affected by undocking.
The built in screen is fairly low resolution so there are potentially fewer pixels to push when the Switch is undocked. It remains to be seen exactly how quality/performance will be affected by undocking.