GeForce GTX 660 OEM and T400 - video card comparison

GeForce GTX 660 OEM

T400

Architecture

Kepler (2012−2018)

Turing (2018−2021)

GPU code name

GK104

TU117

Market segment

Desktop

Desktop

Release date

August 2012

May 2021

Interface

PCIe 3.0 x16

PCIe 3.0 x16

Supplementary power connectors

1x 6-pin

None

Boost clock speed

888 MHz

1425 MHz

Core clock speed

823 MHz

-

Floating-point performance

2,046 gflops

-

Manufacturing process technology

28 nm

12 nm

Number of transistors

3,540 million

4,700 million

Pipelines / CUDA cores

1152

384

Power consumption (TDP)

130 Watt

30 Watt

Texture fill rate

85.25

34.20

Memory type

GDDR5

GDDR6

Maximum RAM amount

2 GB

2 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

5600 MHz

10 GB/s

Memory bandwidth

179.2 GB/s

80 GB/s

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

3x mini-DisplayPort

HDMI

+

-

DirectX

12 (11_0)

12 (12_1)

CUDA

3.0

7.5

OpenCL

1.2

3.0

OpenGL

4.6

4.6

Shader Model

5.1

6.6

Vulkan

1.1.126

1.2