Radeon RX6800 16 GB is now the fastest card for Mac Pro 4,1/5,1 with standard EFI boot screen. You can see EFI boot screen even without any HDD/SSD installed at all.
macOS Monterey 12.2.1 works natively without any patches. You just need to either move Monterey from supported Mac or install it via any patcher, then you can reset NVRAM, click EFI boot icon from macOS Monterey-micropatcher USB stick to set proper NVRAM variables needed for Big Sur/Monterey and you have 100% native Mac.
RX6800 supports macOS Big Sur 11.4 or later and macOS Monterey 12.0.1 or later. RX6600 supports macOS Monterey 12.1 or later. You will be still able to boot to older macOS versions like High Sierra/Mojave/Catalina, but without acceleration as there is no driver support in these.
Both supports Windows 10/11 in legacy/UEFI mode (also Windows 8.1 is supported with Windows 7 driver, but not recommended). Resume/suspend works both in legacy and UEFI mode!
Cards works using internal power, no SATA power, Pixlas mod or external PSU is needed. RX6800 uses 2x 8-pin power, RX6600XT uses a single 8-pin power.
Real TDP of RX6800 is about 220W well within Mac Pro safety limits. Idle TDP is just 7W. RX6600XT takes just 160W under load and just 3W when idle!
Supports HDMI/DisplayPort Audio out of the box both under macOS and Windows.
RX6800 seems to be a solid 4K performer for DX12 gaming under Windows. RX 6600XT scores half of score but still offering a smooth gameplay. Tested using Shadow Of The Tomb Raider in 4K resolution with ultra details.
These cards are exclusively offered by MacVidCards Europe, but shipping worldwide.
RX6800 benchmarks:
3DMark Time Spy (12 767 points): https://www.3dmark.com/3dm/74499831
RX6600 benchmarks:
3DMark Time Spy (8857 points): https://www.3dmark.com/3dm/74502253
macOS Monterey 12.2.1 works natively without any patches. You just need to either move Monterey from supported Mac or install it via any patcher, then you can reset NVRAM, click EFI boot icon from macOS Monterey-micropatcher USB stick to set proper NVRAM variables needed for Big Sur/Monterey and you have 100% native Mac.
RX6800 supports macOS Big Sur 11.4 or later and macOS Monterey 12.0.1 or later. RX6600 supports macOS Monterey 12.1 or later. You will be still able to boot to older macOS versions like High Sierra/Mojave/Catalina, but without acceleration as there is no driver support in these.
Both supports Windows 10/11 in legacy/UEFI mode (also Windows 8.1 is supported with Windows 7 driver, but not recommended). Resume/suspend works both in legacy and UEFI mode!
Cards works using internal power, no SATA power, Pixlas mod or external PSU is needed. RX6800 uses 2x 8-pin power, RX6600XT uses a single 8-pin power.
Real TDP of RX6800 is about 220W well within Mac Pro safety limits. Idle TDP is just 7W. RX6600XT takes just 160W under load and just 3W when idle!
Supports HDMI/DisplayPort Audio out of the box both under macOS and Windows.
RX6800 seems to be a solid 4K performer for DX12 gaming under Windows. RX 6600XT scores half of score but still offering a smooth gameplay. Tested using Shadow Of The Tomb Raider in 4K resolution with ultra details.
These cards are exclusively offered by MacVidCards Europe, but shipping worldwide.
RX6800 benchmarks:
3DMark Time Spy (12 767 points): https://www.3dmark.com/3dm/74499831
RX6600 benchmarks:
3DMark Time Spy (8857 points): https://www.3dmark.com/3dm/74502253
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