ATI Radeon HD 4850 Specs (2024)

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GPU Database
Radeon HD 4850 Specs

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Graphics Processor: RV770
Cores: 800
TMUs: 40
ROPs: 16
Memory Size: 512 MB
Memory Type: GDDR3
Bus Width: 256 bit

GPU

PCB Front

PCB Back

Recommended Gaming Resolutions:

1366x768
1600x900
1920x1080

The Radeon HD 4850 was a performance-segment graphics card by ATI, launched on June 25th, 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. Since Radeon HD 4850 does not support DirectX 11 or DirectX 12, it might not be able to run all the latest games. 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 paired 512 MB GDDR3 memory with the Radeon HD 4850, 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.
Being a single-slot card, the ATI Radeon HD 4850 draws power from 1x 6-pin power connector, 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 PCI-Express 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
(215-0669065)

Architecture: TeraScale

Foundry: TSMC

Process Size: 55 nm

Transistors: 956 million

Density: 3.7M / mm²

Die Size: 256 mm²

Chip Package: HFCBGA-1492

Graphics Card

Release Date: Jun 25th, 2008

Generation: Radeon R700
(HD 4800)

Predecessor: Radeon R600

Successor: Evergreen

Production: End-of-life

Launch Price: 199 USD

Bus Interface: PCIe 2.0 x16

Reviews: 127 in our database

Relative Performance

GeForce 210

13%

GeForce 9400 GT

16%

Radeon HD 4550

20%

Radeon HD 5450

26%

Radeon HD 6450

30%

GeForce GT 520

32%

GeForce GT 220

40%

GeForce GT 430

52%

Radeon HD 5570

52%

Radeon HD 4670

57%

GeForce GT 440

60%

GeForce GT 240

61%

GeForce 9600 GT

70%

Radeon HD 5670

75%

GeForce GT 640

80%

GeForce 9800 GT

83%

Radeon HD 6670

86%

Radeon HD 4830

89%

Radeon HD 4770

95%

Radeon HD 4850

100%

GeForce GTS 250

102%

GeForce GTS 450

105%

Radeon HD 5750

109%

Radeon HD 7750

125%

Radeon HD 5770

125%

GeForce GTX 260

128%

Radeon HD 4870

129%

Radeon Vega 8

130%

GeForce GTX 550 Ti

131%

GeForce GTX 650

132%

Radeon HD 5830

140%

Radeon HD 6790

147%

Radeon HD 4890

149%

GeForce GTX 460

155%

Radeon RX Vega 11

156%

GeForce GT 1030

158%

GeForce GTX 275

Clock Speeds

GPU Clock: 625 MHz

Memory Clock: 993 MHz
1986 Mbps effective

Memory

Memory Size: 512 MB

Memory Type: GDDR3

Memory Bus: 256 bit

Bandwidth: 63.55 GB/s

Render Config

Shading Units: 800

TMUs: 40

ROPs: 16

Compute Units: 10

L1 Cache: 16 KB (per CU)

L2 Cache: 256 KB

Theoretical Performance

Pixel Rate: 10.00 GPixel/s

Texture Rate: 25.00 GTexel/s

FP32 (float): 1,000 GFLOPS

FP64 (double): 200.0 GFLOPS (1:5)

Board Design

Slot Width: Single-slot

Length: 246 mm
9.7 inches

TDP: 110 W

Suggested PSU: 300 W

Outputs: 2x DVI
1x S-Video

Power Connectors: 1x 6-pin

Board Number: 109-B50131-00

Graphics Features

DirectX: 10.1 (10_1)

OpenGL: 3.3

OpenCL: 1.1

Vulkan: N/A

Shader Model: 4.1

RV770 GPU Notes

Mobile Variant: M98
Codename: Wekiva
Graphics/Compute: GFX3
Display Core Engine: 3.1
Unified Video Decoder: 2.0

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 (13)

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	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, 241 mm/9.5 inches
PowerColor HD 4850 PCS+ 1 GB	665 MHz	950 MHz	1024 MB, 241 mm/9.5 inches
Sapphire HD 4850	625 MHz	1008 MHz
Sapphire HD 4850 1 GB	625 MHz	993 MHz	1024 MB
Sapphire HD 4850 Toxic	675 MHz	1150 MHz
Sapphire HD 4850 Vapor-X	650 MHz	1000 MHz	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

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