PS4 has 8GB's of unfied GDDR5 clocked at 5500mhz. if you cut the vram you'd still have 5/6 GB's. and whatever sony says about 3.5GB's reserved for the os is crap. no way does that os use 3.5GB's. I've used up both my memory slots and have no place for upgrading memory capacity. will 8 GB last me until ps5 or should I get a ew mobo and upgrade to 16/12gb?