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### 6.5 Video settings

The following right-button menu items control the video output. On emulators that include two video chips (like `x128`) all options exist twice, once for each chip.

- “Video Cache” enables a video cache that can speed up the emulation when little graphics activity is going on; it is especially useful when you run the emulator on a networked X terminal as it can reduce the network bandwidth required. However, this setting can actually make the emulator slower when there is little graphics activity and the amount of work needed to maintain the cache is greater than the amount of work that would be wasted by not using it (if any).
- “Double Size” toggles double-size mode, which makes the emulation window twice as big. It also selects a more accurate CRT emulation renderer with scanlines.
- “Double Scan” toggles double-scan mode, which causes the emulator to draw only odd lines when running in double-size mode (this saves some CPU time and also makes the emulation window look more like an old monitor).