Apple performa 400 series Service Manual
Specifications
Memory - 4
VRAM
Performa 400/405/410/430: 512K VRAM SIMM
Performa 450: 512K VRAM SIMM, upgradable to 768 MB
Performa 460/466/467: 512K VRAM, upgradable to 768 MB
Performa 475/476: 512K VRAM SIMM, upgradable to I MB