Apple iMac A1224 20" ATI/AMD Radeon HD 2400XT

 GDDR3 128MB Graphics Video Card

109-B22531-10 216XJBKA15FG

Specifications:

Manufacturer: ATI/AMD

Chipset: ATI Radeon HD 2400XT

Part Number: 109-B2231-10

Compatiblr Numbers: 216XJBKA15FG

Compatible Models: Apple iMac A1224 AMD 2400 HD2400 HD2400XT

Video Memory: 128MB

Warranty: 30 days