MSI HD 6870 OC 2 GB

R6870-2PM2D1GD5/OC

Graphics Processor

Barts

Cores

1120

TMUs

ROPs

Memory Size

2 GB

Memory Type

GDDR5

Bus Width

256 bit

GPU

Graphics Processor

GPU Name: Barts

GPU Variant: Barts XT
(215-0798000)

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~~
Aug 22nd, 2011

Generation: Northern Islands
(HD 6800)

Predecessor: Evergreen

Successor: Southern Islands

Production: End-of-life

Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: ~~900 MHz~~
920 MHz (+2%)

Memory Clock: 1050 MHz
4.2 Gbps effective

Memory

Memory Size: ~~1024 MB~~
2 GB

Memory Type: GDDR5

Memory Bus: 256 bit

Bandwidth: 134.4 GB/s

Render Config

Shading Units: 1120

TMUs: 56

ROPs: 32

Compute Units: 14

L1 Cache: 8 KB (per CU)

L2 Cache: 512 KB

Theoretical Performance

Pixel Rate: ~~28.80 GPixel/s~~
29.44 GPixel/s

Texture Rate: ~~50.40 GTexel/s~~
51.52 GTexel/s

FP32 (float): ~~2.016 TFLOPS~~
2.061 TFLOPS

Board Design

Slot Width: Dual-slot

Length: ~~247 mm~~
245 mm
~~9.7 inches~~
9.6 inches

TDP: 151 W

Suggested PSU: 450 W

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

Power Connectors: 2x 6-pin

Board Number: 109-C22237-00

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

Other retail boards based on this design (20)

Name	GPU Clock	Memory Clock	Other Changes
ASUS HD 6870 DirectCU	915 MHz	1050 MHz	279 mm/11 inches, 2x DVI 2x DisplayPort
GIGABYTE HD 6870 OC	915 MHz	1050 MHz	290 mm/11.4 inches
GIGABYTE HD 6870 SOC	950 MHz	1100 MHz	290 mm/11.4 inches
HIS HD 6870 Fan	900 MHz	1120 MHz
HIS HD 6870 Fan Turbo	920 MHz	1120 MHz
HIS HD 6870 IceQ	900 MHz	1150 MHz	287 mm/11.3 inches
HIS HD 6870 IceQ X	900 MHz	1150 MHz	260 mm/10.2 inches
HIS HD 6870 IceQ X Turbo	920 MHz	1120 MHz	260 mm/10.2 inches
HIS HD 6870 IceQ X Turbo X	975 MHz	1150 MHz	260 mm/10.2 inches
MSI HD 6870 Hawk	930 MHz	1050 MHz	255 mm/10 inches
MSI HD 6870 OC 2 GB	920 MHz	1050 MHz	2 GB, 245 mm/9.6 inches
MSI HD 6870 Twin Frozr II OC	920 MHz	1050 MHz	245 mm/9.6 inches
Sapphire HD 6870 Dirt3 Edition	920 MHz	1050 MHz	245 mm/9.6 inches
Sapphire HD 6870 FleX	900 MHz	1050 MHz	250 mm/9.8 inches
Sapphire HD 6870 Toxic	970 MHz	1150 MHz	238 mm/9.4 inches
Sapphire HD 6870 Vapor-X	900 MHz	1050 MHz	238 mm/9.4 inches
VTX3D HD 6870 V2	900 MHz	1050 MHz
XFX Double D HD 6870 2 GB	900 MHz	1050 MHz	2 GB, 262 mm/10.3 inches
XFX Double D HD 6870 XXX Edition	925 MHz	1050 MHz	262 mm/10.3 inches
Yeston HD 6870 Game Master	940 MHz	1100 MHz	257 mm/10.1 inches, 1x DVI 1x HDMI 2x mini-DisplayPort