The diagram shows how large a difference in file size there was to load version 6.3 when compared to the reduced feature Bing Maps version 6.3 "core" control. However the latest release employs a much smaller download requirement due to the decrease in file size and clearly now leads the field when compared to its predecessors.
Norman goes on to show the results of some tests Earthware conducted, recording how long it took to plot 1, 10, 100, 500, and 1000 pushpins on a map. The graphs showing a big improvement at the upper ranges of the test, but what's a bit more interesting is what they don't show. The post Bing Maps 6.3 versus Bing Maps 7.0, also adds a third contender, latest Google Maps.
The first graph shows the time for the various map controls to add in the pins, with Bing Maps v 7.0 a clear leader in the upper ranges:
….even better is what happens in Chrome 5:
Obviously loading lots of pins on a map quickly, while impressive, isn't a definitive test of online mapping solutions, but Microsoft has clearly done some quality work with the new version 7.0 mapping.