This new Google Chrome ad that showcases the incredible rendering speed has been making the rounds all week, but I just noticed it’s been updated with some detailed technical information on how they made it. Recorded with the Phantom v640 High Speed Camera at full-HD (capable of 2700fps), they had to get creative with the monitor to capture any image.
Chrome sends the rendered page to the video card buffer all at once, which is why allrecipes.com appears at once, and not with the text first and images second. Chrome actually paints the page from top to bottom, but to eliminate a shadow from the driver board, we had to flip the monitor upside down and set the system preferences in Windows to rotate everything 180 degrees, resulting in the page appearing to render from bottom to top.
Note that these tests are only of Rendering Speed, so they use locally cached versions of the pages shown.
