WoW: Forever launch used 70,480 CPU cores and 251 terabytes of RAM
Blizzard pulled out all the stops to ensure World of Warcraft: Forever survived a chaotic launch night. What was the company's secret weapon? Splurging an absurd amount of money on infrastructure made up of 3,924 virtual machines with 70,480 CPU cores and a whopping 251,136 GB, or 251 TB, of memory.
Praised by media and players as one of the smoothest launches in Blizzard's history, World of Warcraft: Forever requires significant computing firepower. 3,924 virtual machines work out to 18 cores and 64GB of memory per instance. Or, the company could be using a mixture of 16-core and 32-core nodes with slightly less memory.
To put the infrastructure's scale in consumer terms, we are looking at about 8,810 mainstream processors, or 7,848 high-end gaming systems with 32GB of memory each. In any event, the hardware is greatly improved compared to what World of Warcraft used to run on back in 2009.
In 2009, Blizzard said it used 10 data centers …
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