So I bought an old macbook late 2008 (aluminium unibody, 13 inch 1280x800) which has a core 2 duo clocked at 2.4GHz, and 4GB of DDR3 dram. I did it as a little project to make it useable, installing an 850 evo, latest software (available for it anyway) cleaning it out, and increasing the ram. 4GB doesn't sound like enough to share to VRAM, but since all I'm using this for is mainly youtube videos and internet browsing, it's enough. No one games on a mac, especially one that is 10 years old. (no offence if you do, Minecraft ran just fine) Everything has been fine, the laptop runs as expected and I see no problems with its use, except youtube videos running at 720p60. It is an old laptop, but it can handle 720p60 just fine, until about 5-10 minutes into the video, which is where I assume the whopping 256MB of VRAM is used up on the discrete GeForce 9400M soldered to the motherboard. I think an extra 256MB would fix the problem, and I know this is possible on a windows PC, but I have almost no experience with macOS. The amount of RAM free while watching a video is around 3GB, and I hardly ever ago to 2GB, and the CPU runs at an OK temp of 70-80C under load of about 40%, at least for a computer of this age on a lap. The laptop is running macOS El Capitan 10.11.6. While largely unsupported, it's good enough. It has It would be lovely if someone could share their macOS expertise with me to sort this out. Thanks!