Step 3: Open the AMD project
To begin the test, double-click the RyzenGraphic_27.blend file that you downloaded. Assuming the OS associated the .Blend project with Blender, this should launch Blender and open the file. If it didn’t, just start up Blender and select File > Open and point it to the RyzenGraphic_27.Blend file.
Step 4: Check the render sample size
You're almost ready to hit the launch button, but the last thing you should check before you proceed is the render sample size. If you downloaded the file within the last day, it should default to a sample size of 150.
There’s been a lot of confusion over the sample size, because AMD has performed the demo at 3.4GHz twice with two different settings.
The initial test, which was captured by PCPer.com on video, was done for press and analysts. It used a sample size of 100 and took 24 seconds to complete. AMD officials told me this was done to make the test run a little shorter for the attention-span-limited press (OK, they didn’t call the press that, I did.)
The public demo AMD did at its unveiling of the Ryzen used a sample size of 150 and took 36 seconds. I verified the results and the sample size with AMD as of Friday morning. AMD also initially released the test file with a 100 sample size but has since updated it to 150. So yeah, there’s a lot of confusion. Just make sure you set yours to 150.
Step 5: Go!
You’re now ready to go. You can pull down the menu and click Render or simply press F12. (Sorry, we can’t help MacBook Pro Touch Bar users find that button.) Blender is heavily multi-threaded, and the completion time will vary based on the clock speed, microarchitecture and core count of your PC.
The Blender demo AMD is using for its test loves CPU cores.
Step 6: Interpreting the results
How does your machine compare? We know the eight-core Ryzen takes 36 seconds for a 150 sample size on Windows 10. That tracks with an Intel eight-core Core i7-6900K CPU on the same test settings. The eight-core Xeon E5-2687W machine running Windows 8.1 that I used to take these screen caps coughed up several 49-seconds runs.
Don’t take this as the final word on Ryzen performance. That won’t happen until the chip is the hands of reviewers, and more controlled and comprehensive tests can be run.
Still, that won’t stop you from running the test on your machine so you can brag about it on your favorite forum of choice.
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