GeForce GTX 680M and Radeon Graphics 512SP Mobile - video card comparison

GeForce GTX 680M

Radeon Graphics 512SP Mobile

Architecture

Kepler (2012−2018)

GCN 5.1 (2018−2021)

GPU code name

N13E-GTX

Lucienne

Market segment

Laptop

Release date

June 2012

January 2021

Bus support

PCI Express 3.0

Interface

MXM-B (3.0)

IGP

Supplementary power connectors

None

SLI options

Boost clock speed

758 MHz

1900 MHz

Core clock speed

720 MHz

CUDA cores

1344

Floating-point performance

2,038 gflops

Manufacturing process technology

28 nm

7 nm

Number of transistors

3,540 million

9,800 million

Pipelines / CUDA cores

1344

512

Power consumption (TDP)

100 Watt

25 Watt

Texture fill rate

80.6 billion/sec

60.80

Memory type

GDDR5

System Shared

Maximum RAM amount

4 GB

System Shared

Memory bus width

256 Bit

System Shared

Memory clock speed

1800 MHz

System Shared

Memory bandwidth

115.2 GB/s

Shared memory

Display Connectors

No outputs

Portable Device Dependent

DirectX

12 API

12 (12_1)

CUDA

OpenCL

1.1

2.1

OpenGL

4.5

4.6

Shader Model

5.1

6.7 (6.4)

Vulkan

1.1.126

1.3

Optimus