Google

Test 1: 225040 ms for 1000 records
Test 2: 99505 ms for 1000 records
Test 3: 209550 ms for 1000 records

OpenDNS

Test 1: 246687 ms for 1000 records
Test 2: 101039 ms for 1000 records
Test 3: 228571 ms for 1000 records

Comcast

Test 1: 135830 ms for 1000 records
Test 2: 171054 ms for 1000 records
Test 3: 136189 ms for 1000 records

I jumped from OpenDNS to the new Google Public DNS after Gruber did.

The speed difference between the two during real world browsing has been negligible. In fact, a recent BrowserMob article has me reconsidering the plain-old Comcast DNS servers.

Download the Java utility from BrowserMob to run your own speed test.

Usage instructions:

java -jar browsermob-dns-perf.jar

To test your ISP’s DNS as well, add the IP address(s) to the command like so:

java -jar browsermob-dns-perf.jar 123.456.789.012