Only 512MB of memory were reserved for the GPU. The GPU has access to use a large chunk of the memory beyond that if it needs to. If you are experiencing less issues with a larger allocation to the GPU, then maybe the UMA is bugged?
Only 512MB of memory were reserved for the GPU. The GPU has access to use a large chunk of the memory beyond that if it needs to. If you are experiencing less issues with a larger allocation to the GPU, then maybe the UMA is bugged?