I should have mentioned CPU - Intel Core i7 6700 at 4.0 GHz. Did you see any color shift or difference in detail at 100% between the two methods? I noticed it immediately when I stacked them in Photoshop and turned the top layer off and on. That part is puzzling to me. I checked to make sure they both had the originally assigned profile, both did.
Hi John,
I also noticed a difference in detail. My Graphics driver doesn't qualify for the minimum hardware specs, so I run Gigapixel AI in CPU mode. During Beta testing for this version, I was able to run a test in GPU mode, but with frequent crashes (as expected). The tests that did finish, showed from better to much better detail in CPU mode.
This is something that I wanted to address with the folks at Topaz Labs after the beta cycle that focused on performance tweaking. I could not be sure that it was not limited to my specific setup. But now that you also notice it, there may be something that needs fixing in the GPU code.
I've just sent a support request explaining this. I'm not sure they can match my (incompatible hardware) but they probably can test with your hardware. It would be helpful if you could send them a support request as well.
Cheers,
Bart