diff --git a/µBlock-vs.-ABP:-efficiency-compared.md b/µBlock-vs.-ABP:-efficiency-compared.md
index ceb055d..69a2976 100644
--- a/µBlock-vs.-ABP:-efficiency-compared.md
+++ b/µBlock-vs.-ABP:-efficiency-compared.md
@@ -39,3 +39,4 @@ Extensions have their own memory footprint, but they also causes increased memor
 ##### µBlock
 ![uBlock](https://raw.githubusercontent.com/gorhill/uBlock/master/doc/img/hn-ublock.png)
 
+Now keep in mind this is the added footprint for a very simple web page which has no embedded frames. You can multiply the added footprint on the main page by the number of frames embedded on a page, so page with frames can end up consuming a _lot_ more memory than they would have otherwise. A good stress test which demonstrate this is the [infamous vim test](https://github.com/gorhill/httpswitchboard/wiki/Adblock-Plus-memory-consumption).
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