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ATI Radeon HD 3870
- Graphics Processor
- RV670
- Cores
- 320
- TMUs
- 16
- ROPs
- 16
- Memory Size
- 512 MB
- Memory Type
- GDDR4
- Bus Width
- 256 bit
GPU
I/O
PCB Front
PCB Back
Recommended Gaming Resolutions:
- 640x480
- 1280x720
- 1366x768
The Radeon HD 3870 was a performance-segment graphics card by ATI, launched on November 19th, 2007. Built on the 55 nm process, and based on the RV670 graphics processor, in its RV670 XT variant, the card supports DirectX 10.1. Since Radeon HD 3870 does not support DirectX 11 or DirectX 12, it might not be able to run all the latest games. The RV670 graphics processor is an average sized chip with a die area of 192 mm² and 666 million transistors. It features 320 shading units, 16 texture mapping units, and 16 ROPs. ATI has paired 512 MB GDDR4 memory with the Radeon HD 3870, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 777 MHz, memory is running at 1126 MHz.
Being a dual-slot card, the ATI Radeon HD 3870 draws power from 1x 6-pin power connector, with power draw rated at 106 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 3870 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 241 mm in length, and features a dual-slot cooling solution. Its price at launch was 269 US Dollars.
Being a dual-slot card, the ATI Radeon HD 3870 draws power from 1x 6-pin power connector, with power draw rated at 106 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 3870 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 241 mm in length, and features a dual-slot cooling solution. Its price at launch was 269 US Dollars.
Graphics Processor
Graphics Card
- Release Date
- Nov 19th, 2007
- Generation
-
Radeon R600
(HD 3800)
- Predecessor
- Radeon R500 PCIe
- Successor
- Radeon R700
- Production
- End-of-life
- Launch Price
- 269 USD
- Bus Interface
- PCIe 2.0 x16
- Reviews
- 80 in our database
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for RTX 3080 and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- GPU Clock
- 777 MHz
- Memory Clock
-
1126 MHz
2.3 Gbps effective
Memory
- Memory Size
- 512 MB
- Memory Type
- GDDR4
- Memory Bus
- 256 bit
- Bandwidth
- 72.06 GB/s
Render Config
- Shading Units
- 320
- TMUs
- 16
- ROPs
- 16
- Compute Units
- 4
- L2 Cache
- 256 KB
Theoretical Performance
- Pixel Rate
- 12.43 GPixel/s
- Texture Rate
- 12.43 GTexel/s
- FP32 (float)
- 497.3 GFLOPS
- FP64 (double)
- 99.46 GFLOPS (1:5)
Board Design
- Slot Width
- Dual-slot
- Length
- 241 mm
9.5 inches
- TDP
- 106 W
- Suggested PSU
- 300 W
- Outputs
- 2x DVI
1x S-Video
- Power Connectors
- 1x 6-pin
- Board Number
- 109-B33931-00
Graphics Features
- DirectX
- 10.1 (10_1)
- OpenGL
-
3.3 (full)
4.0 (partial)
- OpenCL
- N/A
- Vulkan
- N/A
- Shader Model
- 4.1
RV670 GPU Notes
| Mobile Variant: M88 Codename: Boom Graphics/Compute: GFX3 Display Core Engine: 2.0 Unified Video Decoder: 1.0 RV670 Chip Numbers: RV670 XT (215-0708017) RV670 XTX ES (215-0708001) Latest Drivers: Windows XP / 8: Catalyst Software Suite 13.1 / 13.4 Beta Windows Vista / 7: Catalyst Software Suite 13.9 |
Retail boards based on this design (11)
| Name | GPU Clock | Memory Clock | Other Changes |
|---|---|---|---|
| 777 MHz | 855 MHz | GDDR3, 229 mm/9 inches, Single-slot | |
| 851 MHz | 1143 MHz | 229 mm/9 inches, Single-slot | |
| 850 MHz | 950 MHz | 1024 MB, GDDR3, 229 mm/9 inches | |
| 820 MHz | 1200 MHz | 229 mm/9 inches | |
| 850 MHz | 1190 MHz | ||
| 777 MHz | 1126 MHz | ||
| 825 MHz | 1200 MHz | Single-slot | |
| 800 MHz | 1152 MHz | Single-slot | |
| 800 MHz | 1152 MHz | Single-slot | |
| 800 MHz | 1100 MHz | 1024 MB, Single-slot | |
| 777 MHz | 1126 MHz | GDDR3, Single-slot |
Jul 29th, 2025 21:28 CDT
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