GeForce 820M and GeForce RTX 4090 Max-Q - video card comparison

GeForce 820M

GeForce RTX 4090 Max-Q

Architecture

Fermi (2010−2014)

Ada Lovelace

GPU code name

N15V-GM

AD103

Market segment

Laptop

Desktop

Release date

January 2014

January 2023

Bus support

PCI Express 2.0

Interface

PCIe 2.0 x16

PCIe 4.0 x16

Supplementary power connectors

None

Boost clock speed

1455 MHz

Core clock speed

775 MHz

Floating-point performance

240.0 gflops

Manufacturing process technology

28 nm

4 nm

Number of transistors

585 million

45,900 million

Pipelines / CUDA cores

9728

Power consumption (TDP)

15 Watt

80 Watt

Texture fill rate

10.00

442.3

Memory type

DDR3

GDDR6

Maximum RAM amount

2 GB

16 GB

Memory bus width

64 Bit

256 Bit

Memory clock speed

1800 MHz

14 GB/s

Memory bandwidth

14.4 GB/s

448.0 GB/s

Shared memory

Display Connectors

No outputs

Portable Device Dependent

DirectX

12 (11_0)

12 Ultimate (12_2)

CUDA

8.9

OpenCL

1.1

3.0

OpenGL

4.5

4.6

Shader Model

5.1

6.7

Vulkan

N/A

1.3

GameWorks

GPU Boost

2.0

Optimus