Big Sur benchmarks  

@craftsman, is this consistent or one-off?

@mac_editor, consistent with the usual margin of error. This is on external display only and clamshell mode, just in case anyone wonders about the previously reported issues with multiple displays when running Geekbench.

So Geekbench GPU scores on macOS seem to be related to the resolution of the external monitor, which makes absolutely no sense since the tests are performed off screen in memory only.

Big Sur beta 3

5700XT with Eizo 1200p display - circa 60000 points

5700XT with internal retina display only - circa 42000 points

5700XT with external 4K display - circa 33000 points

As the onscreen resolution increases the scores go down.

Sure.

It’s fine.

When Geekbench gives you three wildly different scores... for the same card.

Big Sur beta 4

Geekbench the same.

GFXBench has lost 30% performance in offscreen Aztec Ruins. I'm getting around 130fps now. Used to get circa 200fps in Mojave and Catalina.

Unigene Valley has lost 10%. Now getting about 2950 points. Used to get about 3300 points.

DisplayPort output suddenly stopped working. Big Sur will detect the display and then turn it off after a second before it displays an image there. 

Solution if this happens to you : Choose the reset option in the display's settings. Clear everything.

Big Sur Beta 9. Radeon 5700 XT.

GFXBench Metal is 30% slower than Catalina.

Shadow of the Tomb Raider is 15-20% slower than Catalina.

It looks like 3D performance has gone down the toilet and it's not coming back. If you're thinking of buying an eGPU for macOS gaming forget about. Use a PC or a console. Big Sur finally confirms what people have always been annoyed about for 20 years. macOS is not a gaming platform and the GPU drivers will always be the slowest of all platforms.

@craftsman, thank you for sharing. That's disappointing to hear. If I have time, I'll try and run a couple of A/B tests as well.

Posted by: @craftsman

Big Sur Beta 9. Radeon 5700 XT.

GFXBench Metal is 30% slower than Catalina.

Shadow of the Tomb Raider is 15-20% slower than Catalina.

It looks like 3D performance has gone down the toilet and it's not coming back. If you're thinking of buying an eGPU for macOS gaming forget about. Use a PC or a console. Big Sur finally confirms what people have always been annoyed about for 20 years. macOS is not a gaming platform and the GPU drivers will always be the slowest of all platforms.

Pretty sad to ear but I have still hope. Often GPU drivers in macOS gets a little better with pain releases. Anyway we will discover Big Sur actual performance soon.