Radeon HD 2900 GT and GeForce RTX 3080 Mobile - video card comparison

Radeon HD 2900 GT

GeForce RTX 3080 Mobile

Architecture

TeraScale (2005−2013)

Ampere (2020−2022)

GPU code name

R600

GN20-E7 GA104

Market segment

Desktop

Laptop

Release date

November 2007

January 2021

Interface

PCIe 1.0 x16

PCIe 4.0 x16

Supplementary power connectors

1x 8-pin

Boost clock speed

1245 - 1710 MHz

Core clock speed

601 MHz

780 - 1100 MHz

Floating-point performance

288.48 gflops

Manufacturing process technology

80 nm

8 nm

Number of transistors

720 million

17,400 million

Pipelines / CUDA cores

240

6144

Power consumption (TDP)

150 Watt

150 Watt (80 - 150 Watt TGP)

Texture fill rate

7.212

296.6

Memory type

GDDR3

GDDR6

Maximum RAM amount

256 MB

16 GB

Memory bus width

256 Bit

Memory clock speed

1600 MHz

14000 MHz

Memory bandwidth

51.2 GB/s

384.0 GB/s

Shared memory

Display Connectors

2x DVI, 1x S-Video

No outputs

DirectX

10.0 (10_0)

12 Ultimate (12_2)

CUDA

8.6

OpenCL

N/A

2.0

OpenGL

3.3

4.6

Shader Model

4.0

6.5

Vulkan

N/A

1.2