GeForce GTX 780 Rev. 2 and Radeon HD 6850 - video card comparison

GeForce GTX 780 Rev. 2

Radeon HD 6850

Architecture

Kepler (2012−2018)

TeraScale 2 (2009−2015)

GPU code name

GK110B

Barts

Market segment

Desktop

Desktop

Release date

September 2013

October 2010

Bus support

-

AGP

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

1x 6-pin

Boost clock speed

902 MHz

-

Core clock speed

863 MHz

-

Floating-point performance

4,156 gflops

1,488.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

7,080 million

1,700 million

Pipelines / CUDA cores

2304

960

Power consumption (TDP)

250 Watt

127 Watt

Texture fill rate

173.2

37.20

Memory type

GDDR5

GDDR5

Maximum RAM amount

3 GB

1 GB

Memory bus width

384 Bit

256 Bit

Memory clock speed

6008 MHz

-

Memory bandwidth

288.4 GB/s

128.0 GB/s

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

2x DVI, 1x HDMI, 2x mini-DisplayPort

Eyefinity

-

1

HDMI

+

+

DisplayPort support

-

-

DirectX

12 (11_1)

DirectX® 11

CUDA

3.5

-

Mantle

-

-

OpenCL

1.2

1.2

OpenGL

4.6

4.4

Shader Model

5.1

5.0

Vulkan

1.1.126

-

AppAcceleration

-

-

CrossFire

-

1

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-