ATI Hemlock
ATI's Hemlock GPU uses the TeraScale 2 architecture and is made using a 40 nm production process at TSMC. With a die size of 334 mm² and a transistor count of 2,154 million it is a large chip. Hemlock supports DirectX 11.2 (Feature Level 11_0). For GPU compute applications, OpenCL version 1.2 can be used. It features 1600 shading units, 80 texture mapping units and 32 ROPs.
Further reading:
Evergreen Series Instruction Set Architecture

Graphics Processor
- GPU Name
- Hemlock
- Architecture
- TeraScale 2
- Foundry
- TSMC
- Process Size
- 40 nm
- Transistors
- 2,154 million
- Density
- 6.4M / mm²
- Die Size
- 334 mm²
- Released
- Nov 18th, 2009
Graphics Features
- DirectX
- 11.2 (11_0)
- OpenGL
- 4.4
- OpenCL
- 1.2
- Vulkan
- N/A
- Shader Model
- 5.0
- Compute
- GFX4
Render Config
- Shading Units
- 1600
- TMUs
- 80
- ROPs
- 32
- Compute Units
- 20
- Z-Stencil
- 40
- L1 Cache
- 8 KB per CU
- L2 Cache
- 512 KB
- Max. TDP
- 302 W
All TeraScale 2 GPUs
- AMD Barts
- AMD Blackcomb
- ATI Broadway
- AMD Broadway
- AMD Caicos
- AMD Capilano
- ATI Cedar
- AMD Cedar
- ATI Cypress
- AMD Cypress
- AMD Granville
- ATI Hemlock
- AMD Juniper
- ATI Juniper
- AMD Latte
- AMD Lexington
- AMD Loveland
- ATI Madison
- AMD Onega
- ATI Park
- AMD Park
- ATI Pinewood
- AMD Pinewood
- ATI Redwood
- AMD Redwood
- AMD Robson
- AMD Seymour
- AMD Sumo
- AMD SuperSumo
- AMD Thames
- AMD Turks
- ATI Turks
- AMD Whistler
ATI GPU Architecture History
Graphics cards using the ATI Hemlock GPU
Name | Chip | Memory | Shaders | TMUs | ROPs | GPU Clock | Memory Clock |
---|---|---|---|---|---|---|---|
ATI Radeon HD 5970
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Hemlock XT | 1024 MB | 1600 | 80 | 32 | 725 MHz | 1000 MHz |
ATI Radeon HD 5950
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Hemlock PRO | 1024 MB | 1440 | 72 | 32 | 725 MHz | 1000 MHz |
Hemlock GPU Notes
Architecture Codename: Evergreen Chip Variant: Cypress Graphics/Compute: GFX4 Display Core Engine: 4.0 Unified Video Decoder: 2.3 |