diff --git a/docs/docs/faq.md b/docs/docs/faq.md
index 253cf556..5efaa1bd 100644
--- a/docs/docs/faq.md
+++ b/docs/docs/faq.md
@@ -42,6 +42,9 @@ You can change the setting in your [dashboard](dashboard.md) or use the [EEPROM
 #### Q: How can I increase the resolution?
 For all titles the rendering resolution can be easily scaled by navigating to View→Int. Resolution Scale. For titles that natively support higher resolutions, you can enable the associated mode in your dashboard or by using the [EEPROM editor](eeprom.md).
 
+#### Q: What should I pick for 4k resolution?
+The 'Resolution Scale' number is a scaling factor applied to each surface dimension. Typical framebuffer dimensions are 640x480, so if you want a '4k resolution' (meaning around 4k horizontal res) you can select 6 to get 3840x2880.
+
 #### Q: Are there any plans for a mobile port of xemu?
 There are currently no plans for a mobile port of xemu on iOS or Android, the emulator hasn't reached the performance necessary to run well on iOS or Android at this time.