i mean sure its not quite 512gb levels but you can get 128gb on a ryzen AI max chipset which has unified memory like apple, theyre also pretty reasonably priced, i saw an AI max 370 with 96gb on amazon earlier for a shade over £1000, guess you could boost that with an eGPU to gain a bit extra but 64gb would likely be the max you could add so still not quite enough to run full qwen3 coder at a decent quant but not far off, hopefully the next gen will offer more ram or another model comes out that can beat Q3 with fewer params