Password cracking — how fast?

With my fairly average graphics card — Radeon RX-590 (https://www.videocardbenchmark.net/gpu.php?gpu=Radeon+RX+590&id=4025), for a given keyspace. More recent cards will be quicker. Next year, more recent cards will be quicker still!

7 characters, uppercase, lowercase, and numeric — around 8 minutes:

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7 truly random characters, under 3 hours:

8 characters, uppercase, lowercase, and numeric — under 9 hours:

8 truly random characters, around 11 days:

9 characters, uppercase, lowercase, and numeric — under 23 days:

9 truly random characters, nearly 3 years:

10 characters, uppercase, lowercase, and numeric — over 4 years:

12 characters — lowercase and numeric only — over 20 years:

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