Which loads faster: Loading a large image two times and scaling one OR loading the large image once and thumbnail
<p>I have a rotator that has a thumbnail and featured image.
<br></p>

<ul>
<li>Featured.png: 1054 * 510 : 157.35kb</li>
<li>Thumbnail.png: 190 * 75 : 3.67kb</li>
</ul>

<p>Would it be faster on a mobile device to load the same image twice then scale one image to the thumbnail size or use two different images? I figured because the image is already cached it might be faster. I also think because I'm serving a scaled image that it may require more resources.</p>