Radeon Sky 900 and GeForce RTX 4080 Mobile - video card comparison

Radeon Sky 900

GeForce RTX 4080 Mobile

Architecture

GCN 1.0 (2012−2020)

Ada Lovelace

GPU code name

Tahiti

GN21-X9

Market segment

Desktop

Laptop

Release date

March 2013

January 2023

Bus support

PCIe 3.0

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

2x 8-pin

Boost clock speed

950 MHz

2280 MHz

Core clock speed

825 MHz

1860 MHz

Floating-point performance

2x 3,405 gflops

Manufacturing process technology

28 nm

5 nm

Number of transistors

4,313 million

35,800 million

Pipelines / CUDA cores

3584

7424

Power consumption (TDP)

300 Watt

150 Watt (60 - 150 Watt TGP)

Texture fill rate

106.4

386.3

Memory type

GDDR5

GDDR6X

Maximum RAM amount

6 GB

12 GB

Memory bus width

384 Bit

192 Bit

Memory clock speed

5000 MHz

20000 MHz

Memory bandwidth

480 GB/s

432.0 GB/s

Shared memory

Display Connectors

1x DVI, 1x mini-DisplayPort

Portable Device Dependent

Dual-link DVI support

DirectX

12 (11_1)

12 Ultimate (12_2)

CUDA

8.9

OpenCL

1.2

3.0

OpenGL

4.6

Shader Model

5.1

6.7

Vulkan

1.2.131

1.3