GeForce GT 640M and GeForce RTX 4090 Ti - video card comparison

GeForce GT 640M

GeForce RTX 4090 Ti

Architecture

Kepler (2012−2018)

Ada Lovelace

GPU code name

N13P-GS

AD102

Market segment

Laptop

Desktop

Release date

March 2012

2023

Bus support

PCI Express 2.0, PCI Express 3.0

-

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

-

2x 16-pin

Boost clock speed

645 MHz

2565 MHz

Core clock speed

Up to 625 MHz

-

CUDA cores

384

-

Floating-point performance

480.0 gflops

-

Manufacturing process technology

28 nm

5 nm

Number of transistors

1,270 million

76,300 million

Pipelines / CUDA cores

384

18176

Power consumption (TDP)

32 Watt

600 Watt

Texture fill rate

Up to 20.0 billion/sec

1,457

Memory type

DDR3\GDDR5

GDDR6X

Maximum RAM amount

2 GB

24 GB

Memory bus width

128bit

384 Bit

Memory clock speed

1800 - 4000 MHz

24 GB/s

Memory bandwidth

Up to 64.0 GB/s

1,152 GB/s

Shared memory

-

-

Display Connectors

No outputs

1x HDMI 2.1, 3x DisplayPort 1.4a

HDMI

+

+

HDCP

+

-

Maximum VGA resolution

Up to 2048x1536

-

DirectX

12 API

12 Ultimate (12_2)

CUDA

+

8.9

OpenCL

1.1

3.0

OpenGL

4.5

4.6

Shader Model

5.1

6.7

Vulkan

1.1.126

1.3

3D Blu-Ray

+

-

Optimus

+

-