Report an Error

ATI Radeon HD 4770

ATI Radeon HD 4770 Image ATI RV740 Image
The Radeon HD 4770 was a mid-range graphics card by ATI, launched in April 2009. Built on the 40 nm process, and based on the RV740 graphics processor, the card supports DirectX 10.1. The RV740 graphics processor is an average sized chip with a die area of 137 mm² and 826 million transistors. It features 640 shading units, 32 texture mapping units and 16 ROPs. ATI has placed 512 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 750 MHz, memory is running at 800 MHz.
We recommend the ATI Radeon HD 4770 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a dual-slot card, the ATI Radeon HD 4770 draws power from 1x 6-pin power connectors, with power draw rated at 80 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 4770 is connected to the rest of the system using a PCIe 2.0 x16 interface. The card measures 203 mm in length, and features a dual-slot cooling solution. Its price at launch was 109 US Dollars.

Graphics Processor

GPU Name: RV740
Architecture: TeraScale
Process Size: 40 nm
Transistors: 826 million
Die Size: 137 mm²

Graphics Card

Released: Apr 28th, 2009
Production Status: End-of-life
Launch Price: 109 USD
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 750 MHz
Memory Clock: 800 MHz
3200 MHz effective


Memory Size: 512 MB
Memory Type: GDDR5
Memory Bus: 128 bit
Bandwidth: 51.2 GB/s

Render Config

Shading Units: 640
TMUs: 32
ROPs: 16
Compute Units: 8
Pixel Rate: 12.00 GPixel/s
Texture Rate: 24.00 GTexel/s
Floating-point performance: 960.0 GFLOPS

Board Design

Slot Width: Dual-slot
Length: 8 inches
203 mm
TDP: 80 W
Outputs: 2x DVI
1x S-Video
Power Connectors: 1x 6-pin
Board Number: B743

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 82 reviews of the Radeon HD 4770.

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
ASUS HD 4770 Formula 750 MHz 800 MHz Single-slot, 1x DVI 1x VGA 1x HDMI