AMD Curacao

Curacao

Curacao XT

Block Diagram

CU Diagram

LDS Diagram

AMD's Curacao GPU uses the GCN 1.0 architecture and is made using a 28 nm production process at TSMC. With a die size of 212 mm² and a transistor count of 2,800 million it is a medium-sized chip. Curacao supports DirectX 12 (Feature Level 11_1). For GPU compute applications, OpenCL version 2.1 (1.2) can be used. It features 1280 shading units, 80 texture mapping units and 32 ROPs.

Further reading: GCN 1.0 Architecture Whitepaper

, Southern Islands Instruction Set Architecture

Graphics Processor

Released: Jan 8th, 2013

GPU Name: Curacao

Desktop Variant: Pitcairn / Trinidad

Mobile Variant: Wimbledon/Neptune

Generation: Southern Islands

Architecture: GCN 1.0

Foundry: TSMC

Process Size: 28 nm

Transistors: 2,800 million

Density: 13.2M / mm²

Die Size: 212 mm²

Package: FCBGA-1737

Graphics Features

DirectX: 12 (11_1)

OpenGL: 4.6

OpenCL: 2.1 (1.2)

Vulkan: 1.2.170

Shader Model: 6.5 (5.1)

WDDM: 2.7

Compute: GFX6 (gfx601)

DCE: 6.0

UVD: 4.0

VCE: 1.0

CLRX: GCN 1.0.0

Render Config

Shading Units: 1280

TMUs: 80

ROPs: 32

Compute Units: 20

Z-Stencil: 128

ACEs: 2

GEs: 2

L1 Cache: 16 KB per CU

L2 Cache: 512 KB

Max. TDP: 180 W

All GCN 1.0 GPUs

AMD GPU Architecture History

2024 RDNA 4.0
2024 RDNA 3.5
2023-2024 CDNA 3.0
2022-2024 RDNA 3.0
2021 CDNA 2.0
2020 CDNA 1.0
2020-2024 RDNA 2.0
2019-2020 RDNA 1.0
2018-2022 GCN 5.1
2017-2020 GCN 5.0
2016-2020 GCN 4.0
2014-2019 GCN 3.0
2013-2017 GCN 2.0
2011-2020 GCN 1.0
2010-2013 TeraScale 3
2009-2015 TeraScale 2
2005-2013 TeraScale
2005-2007 Ultra-Threaded SE

Graphics cards using the AMD Curacao GPU

Name	Chip	Memory	Shaders	TMUs	ROPs	GPU Clock	Memory Clock
AMD Radeon HD 8860 OEM	Curacao PRO	2 GB	1280	80	32	925 MHz	1400 MHz
AMD Radeon R9 270	Curacao PRO	2 GB	1280	80	32	900 MHz	1400 MHz
AMD Radeon R9 270X	Curacao XT	2 GB	1280	80	32	1000 MHz	1400 MHz
AMD Radeon R7 265X OEM	Curacao PRO	2 GB	1280	80	32	900 MHz	1400 MHz

Curacao GPU Notes

Generation: Southern Islands
Desktop Variant: Pitcairn / Trinidad
Mobile Variant: Wimbledon / Neptune
Graphics/Compute: GFX6 (gfx601)
Display Core Engine: 6.0
Unified Video Decoder: 4.0
Video Compression Engine: 1.0
CLRX: GCN 1.0

Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 14.4

Windows Vista :
Catalyst Software Suite 13.12

Windows 7:
32-bit: Radeon Software: Adrenalin Edition 18.9.3
64-bit: AMD Software: Adrenalin Edition 22.6.1

Windows 8.1:
32-bit: Radeon Software: Crimson ReLive Edition 16.12.2 / 17.1.2
64-bit: Radeon Software: Crimson ReLive Edition 17.4.4 / 17.7.1

Windows 10:
32-bit: Radeon Software: Adrenalin Edition 18.9.3
64-bit: AMD Software: Adrenalin Edition 22.6.1

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