GeForce GTX 645 OEM and GeForce RTX 4090 Ti - video card comparison

GeForce GTX 645 OEM

GeForce RTX 4090 Ti

Architecture

Kepler (2012−2018)

Ada Lovelace

GPU code name

GK106

AD102

Market segment

Desktop

Release date

April 2013

2023

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

None

2x 16-pin

Boost clock speed

2565 MHz

Core clock speed

824 MHz

Floating-point performance

949.2 gflops

Manufacturing process technology

28 nm

5 nm

Number of transistors

2,540 million

76,300 million

Pipelines / CUDA cores

576

18176

Power consumption (TDP)

65 Watt

600 Watt

Texture fill rate

39.55

1,457

Memory type

GDDR5

GDDR6X

Maximum RAM amount

1 GB

24 GB

Memory bus width

128 Bit

384 Bit

Memory clock speed

4000 MHz

24 GB/s

Memory bandwidth

64 GB/s

1,152 GB/s

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

1x HDMI 2.1, 3x DisplayPort 1.4a

HDMI

DirectX

12 (11_0)

12 Ultimate (12_2)

CUDA

3.0

8.9

OpenCL

1.2

3.0

OpenGL

4.6

Shader Model

5.1

6.7

Vulkan

1.1.126

1.3