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AMD Southern Islands(HD 7800)(3 models)

Model

VRAM

Boost Clock

TDP

Architecture

Released

Process

Compare

2 GB860 MHz130W

2 GB

860 MHz

130W

GCN 1.0

2012

28 nm

Radeon HD 7870 GHz Edition

2 GB1,000 MHz175W

Radeon HD 7870 GHz Edition

2 GB

1,000 MHz

175W

GCN 1.0

2012

28 nm

Radeon HD 7870 XT

2 GB975 MHz185W

Radeon HD 7870 XT

2 GB

975 MHz

185W

GCN 1.0

2012

28 nm