AMD Blackcomb

Blackcomb

Shane Phillips

Die Shot

Block Diagram

AMD's Blackcomb GPU uses the TeraScale 2 architecture and is made using a 40 nm production process at TSMC. With a die size of 212 mm² and a transistor count of 1,700 million it is a medium-sized chip. Blackcomb supports DirectX 11.2 (Feature Level 11_0). For GPU compute applications, OpenCL version 1.2 can be used. It features 1120 shading units, 56 texture mapping units and 32 ROPs.

Further reading: TeraScale 2 Instruction Set Architecture

Graphics Processor

Released: Jan 4th, 2011

GPU Name: Blackcomb

Desktop Variant: Barts

Codename: Victoria

Generation: Northern Islands

Architecture: TeraScale 2

Foundry: TSMC

Process Size: 40 nm

Transistors: 1,700 million

Density: 8.0M / mm²

Die Size: 212 mm²

Package: HFCBGA-1737

Graphics Features

DirectX: 11.2 (11_0)

OpenGL: 4.4

OpenCL: 1.2

Vulkan: N/A

Shader Model: 5.0

WDDM: 1.3

Compute: GFX4

DCE: 5.0

UVD: 3.1

Render Config

Shading Units: 1120

TMUs: 56

ROPs: 32

Compute Units: 14

Z-Stencil: 40

L1 Cache: 8 KB per CU

L2 Cache: 512 KB

Max. TDP: 150 W

All TeraScale 2 GPUs

AMD GPU Architecture History

2023 CDNA 3.0
2022-2024 RDNA 3.0
2021 CDNA 2.0
2020 CDNA 1.0
2020-2023 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 Blackcomb GPU

Name	Chip	Memory	Shaders	TMUs	ROPs	GPU Clock	Memory Clock
AMD Radeon HD 6990M	Blackcomb XTX	2 GB	1120	56	32	715 MHz	900 MHz
AMD Radeon HD 6970M	Blackcomb XT	1024 MB	960	48	32	680 MHz	900 MHz
AMD Radeon HD 6950M	Blackcomb PRO	1024 MB	960	48	32	580 MHz	900 MHz
AMD FirePro M8900	Blackcomb XT GL	2 GB	960	48	32	680 MHz	900 MHz
AMD Radeon HD 6970M Mac Edition	Blackcomb XT	2 GB	960	48	32	680 MHz	900 MHz
AMD Radeon HD 6970M X2	Blackcomb XT	2 GB	960	48	32	680 MHz	900 MHz