ATI Radeon R700(HD 4500)(5 models)
Model
VRAM
Boost Clock
TDP
Architecture
Released
Process
Radeon HD 4520
0.5 GB600 MHz25W
Radeon HD 4520
0.5 GB
600 MHz
25W
TeraScale
2009
55 nm
Radeon HD 4550
0.25 GB600 MHz25W
Radeon HD 4550
0.25 GB
600 MHz
25W
TeraScale
2008
55 nm
Radeon HD 4570
1 GB650 MHz25W
Radeon HD 4570
1 GB
650 MHz
25W
TeraScale
2008
55 nm
Radeon HD 4570 Rebrand
1 GB796 MHz65W
Radeon HD 4570 Rebrand
1 GB
796 MHz
65W
TeraScale
2009
55 nm
Radeon HD 4580
0.5 GB796 MHz65W
Radeon HD 4580
0.5 GB
796 MHz
65W
TeraScale
2011
55 nm