Just to follow up regarding the PSU... I did some research and it seems a 460w PSU will be sufficient and safe for a graphics cards up to 225w on the board in your XPS. That being said, a GTX 1050 (as an example) uses 75w at idle and could require up to 300w under load. So this would exceed the recommended watts on your current PSU for safe usage when rendering. I also looked at the GTX 980ti for comparison, and it uses 250w under normal conditions but is recommended to have a minimum 600w PSU. This means under load it could demand well over the 250w specs. So you may actually be looking at a PSU upgrade as well, unfortunately.

Edit to say: The GTX 1050 doesn't actually USE 300w under load. My mistake. It's actually just the recommended PSU for that card. So you're within the range of that. However, it's the minimum and might be cutting it close.

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