Radeon HD 3450 and GeForce GTX 680 Mac Edition - video card comparison

Radeon HD 3450

GeForce GTX 680 Mac Edition

Architecture

TeraScale (2005−2013)

Kepler (2012−2018)

GPU code name

RV620

GK104

Market segment

Desktop

Release date

December 2007

April 2013

Interface

PCIe 2.0 x16

Supplementary power connectors

None

2x 6-pin

Boost clock speed

1058 MHz

Core clock speed

600 MHz

1006 MHz

Floating-point performance

48 gflops

3,250 gflops

Manufacturing process technology

55 nm

28 nm

Number of transistors

181 million

3,540 million

Pipelines / CUDA cores

1536

Power consumption (TDP)

25 Watt

195 Watt

Texture fill rate

2.400

135.4

Memory type

DDR2

GDDR5

Maximum RAM amount

256 MB

2 GB

Memory bus width

64 Bit

256 Bit

Memory clock speed

1000 MHz

6008 MHz

Memory bandwidth

8 GB/s

192.3 GB/s

Display Connectors

1x DVI, 1x VGA, 1x S-Video

2x DVI, 1x HDMI, 1x DisplayPort

HDMI

DirectX

10.1 (10_1)

12 (11_0)

CUDA

3.0

OpenCL

N/A

1.2

OpenGL

3.3

4.6

Shader Model

4.1

5.1

Vulkan

N/A

1.1.126