Apple’s Mac Pro can now be configured with a Radeon Pro W5550X with 8GB of GDDR6 memory, a graphics card option that’s a step above the entry-level Radeon Pro 580X but not as expensive as the W5700X graphics card that Apple introduced as an option in April.
Upgrading a Mac Pro with the Radeon Pro W5550X costs an additional $200 over the base price of the machine.
Read more at MacRumors.com