GeForce GTX 680M and Radeon R9 280X2 - video card comparison

GeForce GTX 680M

Radeon R9 280X2

Architecture

Kepler (2012−2018)

GCN 1.0 (2012−2020)

GPU code name

N13E-GTX

Tahiti

Market segment

Laptop

Desktop

Release date

June 2012

-

Bus support

PCI Express 3.0

-

Interface

MXM-B (3.0)

PCIe 3.0 x16

Supplementary power connectors

None

3x 8-pin

SLI options

+

-

Boost clock speed

758 MHz

1000 MHz

Core clock speed

720 MHz

-

CUDA cores

1344

-

Floating-point performance

2,038 gflops

-

Manufacturing process technology

28 nm

28 nm

Number of transistors

3,540 million

4,313 million

Pipelines / CUDA cores

1344

2048

Power consumption (TDP)

100 Watt

375 Watt

Texture fill rate

80.6 billion/sec

128.0

Memory type

GDDR5

GDDR5

Maximum RAM amount

4 GB

3 GB

Memory bus width

256 Bit

384 Bit

Memory clock speed

1800 MHz

6 GB/s

Memory bandwidth

115.2 GB/s

288.0 GB/s

Shared memory

-

-

Display Connectors

No outputs

6x mini-DisplayPort 1.2

DirectX

12 API

12 (11_1)

CUDA

+

-

OpenCL

1.1

2.1 (1.2)

OpenGL

4.5

4.6

Shader Model

5.1

6.5 (5.1)

Vulkan

1.1.126

1.2.170

Optimus

+

-