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ATI Radeon HD 4670 X2

ATI Radeon HD 4670 X2 Image ATI RV730 Image
The Radeon HD 4670 X2 was a graphics card by ATI, launched in September 2008. Built on the 55 nm process, and based on the RV730 graphics processor, in its RV730 XT variant, the card supports DirectX 10.1. The RV730 graphics processor is an average sized chip with a die area of 146 mm² and 514 million transistors. Radeon HD 4670 X2 combines two graphics processors to increase performance. It features 320 shading units, 32 texture mapping units and 8 ROPs per GPU. ATI has placed 1,024 MB GDDR3 memory on the card, which are connected using a 128-bit memory interface per GPU (each GPU manages 512 MB). The GPU is operating at a frequency of 750 MHz, memory is running at 700 MHz.
We recommend the ATI Radeon HD 4670 X2 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a dual-slot card, the ATI Radeon HD 4670 X2 draws power from 1x 6-pin power connectors, with power draw rated at 118 W maximum. Display outputs include: 4x DVI. Radeon HD 4670 X2 is connected to the rest of the system using a PCIe 2.0 x16 interface.

Graphics Processor

GPU Name: RV730
GPU Variant: RV730 XT
Architecture: TeraScale
Process Size: 55 nm
Transistors: 514 million
Die Size: 146 mm²

Graphics Card

Released: Sep 10th, 2008
Production Status: End-of-life
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 750 MHz
Memory Clock: 700 MHz
1400 MHz effective


Memory Size: 512 MB x2
Memory Type: GDDR3
Memory Bus: 128 bit x2
Bandwidth: 22.40 GB/s x2

Render Config

Shading Units: 320 x2
TMUs: 32 x2
ROPs: 8 x2
Compute Units: 4 x2
Pixel Rate: 6.00 GPixel/s x2
Texture Rate: 24.00 GTexel/s x2
Floating-point performance: 480.0 GFLOPS x2

Board Design

Slot Width: Dual-slot
TDP: 118 W
Outputs: 4x DVI
Power Connectors: 1x 6-pin

Graphics Features

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


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Our review database contains 49 reviews of the Radeon HD 4670 X2.

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
VisionTek HD 4670 X2 QUAD 750 MHz 700 MHz 1024 MB, DDR3