ATI RV620
ATI's RV620 GPU uses the TeraScale architecture and is made using a 55 nm production process at TSMC. With a die size of 67 mm² and a transistor count of 181 million it is a very small chip. RV620 supports DirectX 10.1 (Feature Level 10_1). For GPU compute applications, OpenCL version N/A can be used. It features 40 shading units, 4 texture mapping units and 4 ROPs.
Further reading:
R600 Series Instruction Set Architecture

Graphics Processor
- GPU Name
- RV620
- Architecture
- TeraScale
- Foundry
- TSMC
- Process Size
- 55 nm
- Transistors
- 181 million
- Density
- 2.7M / mm²
- Die Size
- 67 mm²
- Released
- Dec 10th, 2007
Graphics Features
- DirectX
- 10.1 (10_1)
- OpenGL
- 3.3
- OpenCL
- N/A
- Vulkan
- N/A
- Shader Model
- 4.1
- Compute
- GFX3
Render Config
- Shading Units
- 40
- TMUs
- 4
- ROPs
- 4
- Compute Units
- 2
- Vertex Cache
- 32 KB
- Texture Cache
- 32 KB
- Tex L1 Cache
- 32 KB per 4 SPs
- L2 Cache
- 64 KB
- Max. TDP
- 50 W
All TeraScale GPUs
- ATI M72
- ATI M74
- ATI M76
- ATI M82
- ATI M84
- ATI M86
- ATI M88
- ATI M92
- ATI M96
- ATI M97
- ATI M98
- ATI R600
- ATI R680
- ATI R700
- ATI RS780
- ATI RS880
- ATI RV610
- ATI RV620
- ATI RV630
- ATI RV635
- ATI RV670
- AMD RV670
- ATI RV710
- AMD RV711
- ATI RV711
- ATI RV730
- ATI RV740
- ATI RV770
- AMD RV770
- ATI RV790
- ATI Xenos Corona
- ATI Xenos Falcon
- ATI Xenos Jasper
- ATI Xenos Vejle
- ATI Xenos Xenon
ATI GPU Architecture History
Graphics cards using the ATI RV620 GPU
Name | Chip | Memory | Shaders | TMUs | ROPs | GPU Clock | Memory Clock |
---|---|---|---|---|---|---|---|
ATI Radeon HD 3450
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RV620 LE | 256 MB | 40 | 4 | 4 | 600 MHz | 500 MHz |
ATI Radeon HD 3470
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RV620 PRO | 256 MB | 40 | 4 | 4 | 800 MHz | 950 MHz |
ATI Radeon HD 3450 PCI
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RV620 LE | 512 MB | 40 | 4 | 4 | 600 MHz | 400 MHz |
ATI Radeon HD 3450 AGP
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RV620 LE | 512 MB | 40 | 4 | 4 | 600 MHz | 500 MHz |
ATI FirePro 2260 PCI
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256 MB | 40 | 4 | 4 | 500 MHz | 500 MHz | |
ATI FireMV 2260
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256 MB | 40 | 4 | 4 | 500 MHz | 500 MHz | |
ATI FirePro V3700
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RV620 GL | 256 MB | 40 | 4 | 4 | 800 MHz | 950 MHz |
ATI FirePro 2450 Multi-View
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512 MB | 40 | 4 | 4 | 400 MHz | 400 MHz | |
ATI FireMV 2260 PCIe x1
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256 MB | 40 | 4 | 4 | 500 MHz | 500 MHz | |
ATI FirePro 2450 Multi-View PCIe x1
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512 MB | 40 | 4 | 4 | 400 MHz | 400 MHz | |
ATI Radeon HD 4250
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RV620 LE | 512 MB | 40 | 4 | 4 | 594 MHz | 396 MHz |
ATI Radeon HD 3550
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RV620 PRO | 512 MB | 40 | 4 | 4 | 594 MHz | 396 MHz |
ATI Radeon HD 3570
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RV620 PRO | 512 MB | 40 | 4 | 4 | 796 MHz | 495 MHz |
ATI Radeon HD 3450 X2
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RV620 LE | 512 MB | 40 | 4 | 4 | 600 MHz | 500 MHz |
RV620 GPU Notes
Codename: Koopa Graphics/Compute: GFX3 Display Core Engine: 3.0 Unified Video Decoder: 1.0 |