bobkn

I didn't mean to suggest that the performance loss with Ryzen CPUs under Win 11 isn't real. I'm just not sure how significant it is for most applications. The 15% number is reportedly at the extreme limit, and the loss is less for most programs. I hope that the issue is fixed before a meaningful set of benchmarks is collected. I know little about what path AMD is taking in GPU computing. I'm unfamiliar with Blender, but if it's open source, good for AMD. (If it doesn't work out, it will have no direct effect on me.)

The AMD CPU slowdown in Windows 11 appears to be a bit overstated. (Clickbait, to a degree.) I have no benchmarks to show how significant it is outside of some games. I haven't seen any indication that it causes program failures, so I'm not highly concerned. Whether the patches expected from Microsoft and AMD in the week of 18 October fix things, we'll see. I'm a very amateurish hobbyist, and I don't depend on my camera or PC for income. (Outlay, yes.) As an enthusiast, I do a lot of things that would make no sense for a pro. That includes reluctance to get an Adobe subscription, even though its pricing is reasonable. Whether Affinity Photo's lack of support for AMD GPUs is significant, I don't know. The limited amount of testing I have done with it has been fairly quick. Maybe my Ryzen 9 5950X CPU (16 cores/ 32 threads) is up to the task.

I'm not a CG artist. I'm more of a PC enthusiast. I've preferred nVidia GPUs in the past, mainly because of their drivers. Some applications (like Canon's Digital Photo Professional) are coded to only use CUDA for GPU acceleration, which means no AMD. Other software supports both makers. I can't address the claim that AMD GPUs are "riddled with problems". I'm not jumping on Windows 4 "already". I've actually been using it since its first release in June. For the most part, it isn't a new OS. It could have been promoted as Windows 10 with some interface changes. The only incompatibilities I've encountered are some drivers (not graphics drivers) that are incompatible with the core isolation security setting. Core isolation was also present in 10, but not enabled by default. Windows 11 seems to be primarily two things: a marketing ploy, and a means to enforce enabling the hardware security features that have been present in Windows PCs for a while. I'd thank you for your opinions, but I prefer to be sincere.

Thanks. I had the false impression that Affinity wasn't permitting my AMD GPU from being used because Affinity wasn't identifying the OS. It is probably because recent AMD CPUs are locked out due to driver issues. I'm disappointed that the issue has not been resolved after 8 months. GPU acceleration can be very significant.

I have just begun experimenting with Affinity. GPU acceleration is unavailable under Windows 11. (I have an AMD 6900XT GPU.) Does the beta support that?