AMD Radeon HD 6790: GPU Specs & Benchmarks

The Radeon HD 6790 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 LE
(215-0798002)

Architecture

TeraScale 2

Foundry

TSMC

Process Size

40 nm

Transistors

1,700 million

Die Size

255 mm²

Graphics Card

Release Date

Apr 4th, 2011

Family

Northern Islands
(HD 6700)

Production

End-of-life

Launch Price

149 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

13.44 GPixel/s

Texture fillrate

33.60 GTexel/s

FP32 (float) performance

1,344 GFLOPS

Clock Speeds

Memory Clock

1050 MHz
4.2 Gbps effective

GPU Clock

840 MHz

Render Config

Shading Units

800

TMUs

40

ROPs

16

Compute Units

10

L1 Cache

8 KB (per CU)

L2 Cache

512 KB

Board Design

Slot Width

Dual-slot

Length

198 mm
7.8 inches

Thermal design power (TDP)

150 W

Suggested PSU

450 W

Display Connectors

2x DVI
1x HDMI
1x DisplayPort

Power Connectors

2x 6-pin

Board Number

C220,
C222

API support

DirectX

11.2 (11_0)

OpenGL

4.4

OpenCL

1.2

Vulkan

N/A

Shader Model

5.0