While using the most popular Google Display ad sizes is important, ad resolution also plays a key role in performance. Google recommends using high-resolution formats, such as:
• 1600 x 1200
• 1600 x 900
• 1280 x 1024
• 1152 x 864
Keep in mind that using a resolution of 1024 x 768 pixels or lower may result in parts of the Google Ads Editor interface not being fully visible.
Top-Performing Google Display Ad Sizes
When it comes to the most effective ad dimensions for the Google Display Network, internal data from Google AdSense highlights these as the best-performing sizes:
• 300 x 250 – Medium Rectangle
• 336 x 280 – Large Rectangle
• 728 x 90 – Leaderboard
• 300 x 600 – Half Page
• 320 x 100 – Large Mobile Banner
These formats tend to offer the best visibility and engagement across a variety of devices and placements.