AMD Radeon HD 6870: GPU Specs & Benchmarks

The Radeon HD 6870 is a graphics card by AMD, built on the 40 nm process and based on the Barts graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

Barts

Model number

Barts XT
(215-0798000)

Architecture

TeraScale 2

Foundry

TSMC

Process Size

40 nm

Transistors

1,700 million

Die Size

255 mm²

Graphics Card

Release Date

Oct 21st, 2010

Family

Northern Islands
(HD 6800)

Production

End-of-life

Launch Price

239 USD

Predecessor

Evergreen

Bus Interface

PCIe 2.0 x16

Memory

Memory Size

1024 MB

Memory Type

GDDR5

Memory Bus

256 bit

Bandwidth

134.4 GB/s

Performance

Pixel fillrate

28.80 GPixel/s

Texture fillrate

50.40 GTexel/s

FP32 (float) performance

2.016 TFLOPS

Clock Speeds

Memory Clock

1050 MHz
4.2 Gbps effective

GPU Clock

900 MHz

Render Config

Shading Units

1120

TMUs

56

ROPs

32

Compute Units

14

L1 Cache

8 KB (per CU)

L2 Cache

512 KB

Board Design

Slot Width

Dual-slot

Length

247 mm
9.7 inches

Width

111 mm
4.4 inches

Height

36 mm
1.4 inches

Thermal design power (TDP)

151 W

Suggested PSU

450 W

Display Connectors

2x DVI
1x HDMI
2x mini-DisplayPort

Power Connectors

2x 6-pin

Board Number

C222

API support

DirectX

11.2 (11_0)

OpenGL

4.4

OpenCL

1.2

Vulkan

N/A

Shader Model

5.0