Report an Error

ATI Radeon HD 3870

ATI Radeon HD 3870 Image ATI RV670 Image
The Radeon HD 3870 was a performance graphics card by ATI, launched in November 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. 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 placed 512 MB GDDR4 memory on the card, 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.
We recommend the ATI Radeon HD 3870 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a dual-slot card, the ATI Radeon HD 3870 draws power from 1x 6-pin power connectors, 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 PCIe 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

GPU Name: RV670
GPU Variant: RV670 XT
Architecture: TeraScale
Process Size: 55 nm
Transistors: 666 million
Die Size: 192 mm²

Graphics Card

Released: Nov 19th, 2007
Production Status: End-of-life
Launch Price: 269 USD
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 777 MHz
Memory Clock: 1126 MHz
2252 MHz effective


Memory Size: 512 MB
Memory Type: GDDR4
Memory Bus: 256 bit
Bandwidth: 72.1 GB/s

Render Config

Shading Units: 320
TMUs: 16
ROPs: 16
Compute Units: 4
Pixel Rate: 12.43 GPixel/s
Texture Rate: 12.43 GTexel/s
Floating-point performance: 497.3 GFLOPS

Board Design

Slot Width: Dual-slot
Length: 9.5 inches
241 mm
TDP: 106 W
Outputs: 2x DVI
1x S-Video
Power Connectors: 1x 6-pin
Board Number: B339

Graphics Features

DirectX: 10.1
OpenGL: 3.3
OpenCL: 1.0
Shader Model: 4.1


Find graphics card BIOS for this card.

GPU-Z Validation

Find GPU-Z validations for this card.


Our review database contains 80 reviews of the Radeon HD 3870.

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
ASUS HD 3870 Magic 777 MHz 855 MHz GDDR3, 9 inches, Single-slot
ASUS HD 3870 TOP 851 MHz 1143 MHz 9 inches, Single-slot
Diamond Viper HD 3870 Ruby Edition 850 MHz 950 MHz 1024 MB, GDDR3, 9 inches
Diamond Viper HD 3870 Ruby Edition 820 MHz 1200 MHz 9 inches
HIS HD 3870 IceQ 3 Turbo 850 MHz 1190 MHz 9.49 inches
Sapphire HD 3870 777 MHz 1126 MHz
Sapphire HD 3870 Atomic 825 MHz 1200 MHz Single-slot
Sapphire HD 3870 Toxic II 800 MHz 1152 MHz Single-slot
Sapphire HD 3870 Ultimate 800 MHz 1152 MHz Single-slot
Sapphire HD 3870 Vapor-X 800 MHz 1100 MHz 1024 MB, Single-slot
VisionTek HD 3870 777 MHz 1126 MHz GDDR3, Single-slot