XFX HD 6850 Black Edition

HD-685X-ZNBC

Graphics Processor

Barts

Cores

960

TMUs

ROPs

Memory Size

1024 MB

Memory Type

GDDR5

Bus Width

256 bit

GPU

Graphics Processor

GPU Name: Barts

GPU Variant: Barts PRO
(215-0798006)

Architecture: TeraScale 2

Foundry: TSMC

Process Size: 40 nm

Transistors: 1,700 million

Density: 6.7M / mm²

Die Size: 255 mm²

Chip Package: HFCBGA-1737

Graphics Card

Release Date: Oct 21st, 2010

Generation: Northern Islands
(HD 6800)

Predecessor: Evergreen

Successor: Southern Islands

Production: End-of-life

Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: ~~775 MHz~~
820 MHz (+6%)

Memory Clock: ~~1000 MHz~~
1100 MHz (+10%)
~~4 Gbps effective~~
4.4 Gbps effective

Memory

Memory Size: 1024 MB

Memory Type: GDDR5

Memory Bus: 256 bit

Bandwidth: ~~128.0 GB/s~~
140.8 GB/s

Render Config

Shading Units: 960

TMUs: 48

ROPs: 32

Compute Units: 12

L1 Cache: 8 KB (per CU)

L2 Cache: 512 KB

Theoretical Performance

Pixel Rate: ~~24.80 GPixel/s~~
26.24 GPixel/s

Texture Rate: ~~37.20 GTexel/s~~
39.36 GTexel/s

FP32 (float): ~~1,488 GFLOPS~~
1.574 TFLOPS

Board Design

Slot Width: Dual-slot

Length: ~~198 mm~~
235 mm
~~7.8 inches~~
9.3 inches

TDP: 127 W

Suggested PSU: 300 W

Outputs: 2x DVI
1x HDMI 1.3a
2x mini-DisplayPort 1.1
2x DVI
1x HDMI 1.3a
1x DisplayPort 1.1

Power Connectors: 1x 6-pin

Board Number: 109-C22301-00B

Graphics Features

DirectX: 11.2 (11_0)

OpenGL: 4.4

OpenCL: 1.2

Vulkan: N/A

Shader Model: 5.0

Barts GPU Notes

Generation: Northern Islands
Mobile Variant: Blackcomb
Codename: Victoria
Graphics/Compute: GFX4
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 14.4

Windows Vista :
Catalyst Software Suite 13.12

Windows 7 / 8.1 / 10:
Catalyst Software Suite 15.7.1 / 16.2.1 Beta

Other retail boards based on this design (20)

Name	GPU Clock	Memory Clock	Other Changes
ASUS HD 6850 DirectCU	790 MHz	1000 MHz	260 mm/10.2 inches, 2x DVI 1x HDMI 1x DisplayPort
ASUS HD 6850 DirectCU V2	790 MHz	1000 MHz	260 mm/10.2 inches, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6850 Fan	775 MHz	1000 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6850 Fan	775 MHz	1000 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6850 IceQ X	775 MHz	1000 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6850 IceQ X Turbo	820 MHz	1100 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort
MSI HD 6850 8cm Fan OC	800 MHz	1000 MHz	226 mm/8.9 inches, 2x DVI 1x HDMI 1x DisplayPort
MSI HD 6850 9cm Fan OC	820 MHz	1100 MHz	226 mm/8.9 inches, 2x DVI 1x HDMI 1x DisplayPort
MSI HD 6850 Power Edition OC	860 MHz	1100 MHz	217 mm/8.5 inches, 2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6850 Toxic	820 MHz	1100 MHz	241 mm/9.5 inches
Sapphire HD 6850 Vapor-X	800 MHz	1100 MHz	238 mm/9.4 inches
VisionTek HD 6850	775 MHz	1000 MHz	2x DVI 1x HDMI 1x DisplayPort
VTX3D HD 6850 X-Edition	800 MHz	1050 MHz
XFX Double D HD 6850	775 MHz	1000 MHz	235 mm/9.3 inches
XFX HD 6850	775 MHz	1000 MHz	220 mm/8.7 inches
XFX HD 6850 Black Edition	820 MHz	1100 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort
XFX HD 6850 Black Edition Dual Fan	820 MHz	1100 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort
XFX HD 6850 Ghost	775 MHz	1000 MHz	1x DVI 1x HDMI 1x VGA
XFX HD 6850 XXX Edition	800 MHz	1050 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort
XFX HD 6850 XXX Edition Dual Fan	800 MHz	1050 MHz	235 mm/9.3 inches, 2x DVI 1x HDMI 1x DisplayPort