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Apple upgrades the Mac Pro with new AMD graphics cards that deliver up to four Navi 21 GPUs and 128 GB of GDDR6 VRAM

The Mac Pro now supports up to 128 GB of GDDR6 VRAM via two Navi 21 graphics cards. (Image source: Apple)
The Mac Pro now supports up to 128 GB of GDDR6 VRAM via two Navi 21 graphics cards. (Image source: Apple)
Apple and AMD have announced new Radeon PRO graphics cards for the Mac Pro. Only the Radeon Pro W6800X and Radeon PRO W6900X are available, but the Mac Pro can now be configured with up to four GPUs for a total of 128 GB of GDDR6 VRAM and 120 Compute Units per graphics card.

Apple has upgraded the Mac Pro, although perhaps not to the extent that some people would have hoped. The Mac Pro's design remains the same, as do the processors for which you can choose. However, the Mac Pro is now available with three new GPUs and up to 64 GB of GDDR6 VRAM.

The new GPU options start the Radeon PRO W6800X, which has 60 Compute Units (CUs), 3,840 stream processors and 32 GB of GDDR6 VRAM operating on a 256-bit interface. The Radeon PRO W6800X also has 128 MB of Infinity Cache and delivers up to 16.0 FP32 TFLOPs.

Next up is the Radeon PRO W6900X, which has 80 CUs, 5,120 stream processors and delivers up to 22 FP32 TFLOPs. While Apple allows the Mac Pro to be configured with two Radeon PRO W6900X GPUs, AMD has released the Radeon PRO W6800X Duo, a card with two Navi 21 GPUs and 64 GB of GDDR6 VRAM.

Apple also offers a configuration with two Radeon PRO W6800X Duo cards, for a combined 128 GB of VRAM. Hence, the Mac Pro can now be equipped with four GPUs, albeit bound to two cards. None of the new Radeon PRO cards are available as MPX modules yet, so they cannot be retrofitted into an existing Mac Pro. We would not rule out Apple from offering these eventually, though. More details about the new Radeon PRO cards can be found on Apple and AMD's websites.

(Image source: Apple)
(Image source: AMD)

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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2021 08 > Apple upgrades the Mac Pro with new AMD graphics cards that deliver up to four Navi 21 GPUs and 128 GB of GDDR6 VRAM
Alex Alderson, 2021-08- 4 (Update: 2021-08- 4)