Radeon HD 4870 and GeForce RTX 4080 Mobile - video card comparison

Radeon HD 4870

GeForce RTX 4080 Mobile

Architecture

TeraScale (2005−2013)

Ada Lovelace

GPU code name

RV770

GN21-X9

Market segment

Desktop

Laptop

Release date

June 2008

January 2023

Interface

PCIe 2.0 x16

PCIe 4.0 x16

Supplementary power connectors

2x 6-pin

Boost clock speed

2280 MHz

Core clock speed

750 MHz

1860 MHz

Floating-point performance

1,200.0 gflops

Manufacturing process technology

55 nm

5 nm

Number of transistors

956 million

35,800 million

Pipelines / CUDA cores

800

7424

Power consumption (TDP)

150 Watt

150 Watt (60 - 150 Watt TGP)

Texture fill rate

30.00

386.3

Memory type

GDDR5

GDDR6X

Maximum RAM amount

1 GB

12 GB

Memory bus width

256 Bit

192 Bit

Memory clock speed

3600 MHz

20000 MHz

Memory bandwidth

115.2 GB/s

432.0 GB/s

Shared memory

Display Connectors

2x DVI, 1x S-Video

Portable Device Dependent

DirectX

10.1 (10_1)

12 Ultimate (12_2)

CUDA

8.9

OpenCL

1.1

3.0

OpenGL

3.3

4.6

Shader Model

4.1

6.7

Vulkan

N/A

1.3