The Witcher 3 is unstable following the 1.04 update.
The Witcher 3 is unstable following the 1.04 update.
You're experiencing stability issues with your overclocked GPU despite previous success. The fact that lowering the overclock resolved the artifacts suggests the system was sensitive to its settings. It's possible the OC was pushing the GPU beyond safe limits, causing instability. You might try reducing the overclock slightly or reverting it to a more stable baseline. If you want further performance, consider checking RAM stability and ensuring your motherboard supports the configuration.
Various games manage overclocking in different ways, possibly altering performance limits. It’s unclear exactly how much you reduced it to 40MHz, but don’t stress about it.