GeForce GTX 780 Rev. 2 and GeForce GTX 745 OEM - video card comparison

GeForce GTX 780 Rev. 2

GeForce GTX 745 OEM

Architecture

Kepler (2012−2018)

Maxwell (2014−2018)

GPU code name

GK110B

GM107

Market segment

Desktop

Release date

September 2013

February 2014

Interface

PCIe 3.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

None

Boost clock speed

902 MHz

Core clock speed

863 MHz

1033 MHz

Floating-point performance

4,156 gflops

793.3 gflops

Manufacturing process technology

28 nm

Number of transistors

7,080 million

1,870 million

Pipelines / CUDA cores

2304

384

Power consumption (TDP)

250 Watt

55 Watt

Texture fill rate

173.2

24.79

Memory type

GDDR5

DDR3

Maximum RAM amount

3 GB

4 GB

Memory bus width

384 Bit

128 Bit

Memory clock speed

6008 MHz

1800 MHz

Memory bandwidth

288.4 GB/s

28.8 GB/s

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

1x DVI, 1x HDMI, 1x VGA

HDMI

DirectX

12 (11_1)

12 (11_0)

CUDA

3.5

5.0

OpenCL

1.2

OpenGL

4.6

Shader Model

5.1

Vulkan

1.1.126