GeForce GTX 780 6 GB and Radeon 660M - video card comparison

GeForce GTX 780 6 GB

Radeon 660M

Architecture

Kepler (2012−2018)

RDNA 2 (2020−2022)

GPU code name

GK110B

RDNA 2 Rembrandt

Market segment

Desktop

Laptop

Release date

September 2013

January 2022

Interface

PCIe 3.0 x16

PCIe 4.0 x8

Supplementary power connectors

1x 6-pin + 1x 8-pin

None

Boost clock speed

902 MHz

1900 MHz

Core clock speed

863 MHz

-

Floating-point performance

4,156 gflops

-

Manufacturing process technology

28 nm

6 nm

Number of transistors

7,080 million

13,100 million

Pipelines / CUDA cores

2304

384

Power consumption (TDP)

250 Watt

45 Watt

Texture fill rate

173.2

45.60

Memory type

GDDR5

System Shared

Maximum RAM amount

6 GB

System Shared

Memory bus width

384 Bit

System Shared

Memory clock speed

6008 MHz

System Shared

Memory bandwidth

288.4 GB/s

-

Shared memory

-

-

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

No outputs

HDMI

+

-

DirectX

12 (11_1)

12 (12_1)

CUDA

3.5

-

OpenCL

1.2

2.0

OpenGL

4.6

4.6

Shader Model

5.1

6.5

Vulkan

1.1.126

1.2