Report an Error

ATI Radeon HD 4850

ATI Radeon HD 4850 Image ATI RV770 Image
The Radeon HD 4850 was a performance graphics card by ATI, launched in June 2008. Built on the 55 nm process, and based on the RV770 graphics processor, in its RV770 PRO variant, the card supports DirectX 10.1. The RV770 graphics processor is an average sized chip with a die area of 256 mm² and 956 million transistors. It features 800 shading units, 40 texture mapping units and 16 ROPs. ATI has placed 512 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 625 MHz, memory is running at 993 MHz.
We recommend the ATI Radeon HD 4850 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a single-slot card, the ATI Radeon HD 4850 draws power from 1x 6-pin power connectors, with power draw rated at 110 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 4850 is connected to the rest of the system using a PCIe 2.0 x16 interface. The card measures 246 mm in length, and features a single-slot cooling solution. Its price at launch was 199 US Dollars.

Graphics Processor

GPU Name: RV770
GPU Variant: RV770 PRO
Architecture: TeraScale
Process Size: 55 nm
Transistors: 956 million
Die Size: 256 mm²

Graphics Card

Released: Jun 25th, 2008
Production Status: End-of-life
Launch Price: 199 USD
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 625 MHz
Memory Clock: 993 MHz
1986 MHz effective


Memory Size: 512 MB
Memory Type: GDDR3
Memory Bus: 256 bit
Bandwidth: 63.6 GB/s

Render Config

Shading Units: 800
TMUs: 40
ROPs: 16
Compute Units: 10
Pixel Rate: 10.00 GPixel/s
Texture Rate: 25.00 GTexel/s
Floating-point performance: 1,000.0 GFLOPS

Board Design

Slot Width: Single-slot
Length: 9.69 inches
246 mm
TDP: 110 W
Outputs: 2x DVI
1x S-Video
Power Connectors: 1x 6-pin
Board Number: B501

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 127 reviews of the Radeon HD 4850.

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
ASUS HD 4850 CUcore TOP 1 GB 670 MHz 1004 MHz 1024 MB, Dual-slot, 2x DVI
ASUS HD 4850 TOP 680 MHz 1050 MHz
ASUS ROG Matrix HD 4850 625 MHz 993 MHz Dual-slot
HIS HD 4850 IceQ 4 TurboX 685 MHz 1100 MHz 9.685 inches, Dual-slot
Palit HD 4850 Sonic 1 GB 685 MHz 1000 MHz 1024 MB, Dual-slot
Palit HD 4850 Sonic Special 700 MHz 900 MHz GDDR5, Dual-slot, 1x DVI 1x HDMI 1x DisplayPort 1x VGA
PowerColor HD 4850 PCS+ 675 MHz 1100 MHz GDDR4, 9.5 inches
PowerColor HD 4850 PCS+ 1 GB 665 MHz 950 MHz 1024 MB, 9.5 inches
Sapphire HD 4850 625 MHz 993 MHz
Sapphire HD 4850 Toxic 675 MHz 1150 MHz 9.69 inches
Sapphire HD 4850 Vapor-X 650 MHz 1000 MHz 9.69 inches, 1x DVI 1x HDMI 1x VGA
Sapphire HD 4850 Vapor-X 1 GB 650 MHz 1000 MHz 1024 MB, 1x DVI 1x HDMI 1x VGA