Radeon Instinct MI8 and GeForce RTX 5080 - video card comparison

Radeon Instinct MI8

GeForce RTX 5080

Architecture

GCN 3.0 (2014−2017)

Blackwell 2.0

GPU code name

Fiji

GB203

Market segment

Desktop

Release date

December 2016

2025 (recently)

Interface

PCIe 3.0 x16

PCIe 5.0 x16

Supplementary power connectors

1x 8-pin

1x 16-pin

Boost clock speed

2520 MHz

Core clock speed

1000 MHz

Floating-point performance

8,192 gflops

Manufacturing process technology

28 nm

0 nm

Number of transistors

8,900 million

Pipelines / CUDA cores

4096

10752

Power consumption (TDP)

175 Watt

350 Watt

Texture fill rate

256.0

846.7

Memory type

HBM

GDDR7

Maximum RAM amount

4 GB

16 GB

Memory bus width

4096 Bit

256 Bit

Memory clock speed

1000 MHz

5 GB/s

Memory bandwidth

512.0 GB/s

160.0 GB/s

Display Connectors

No outputs

1x HDMI 2.1, 3x DisplayPort 1.4a

HDMI

DirectX

12 (12_0)

12 Ultimate (12_2)

CUDA

9.1

OpenCL

2.0

3.0

OpenGL

4.6

Shader Model

6.3

6.7

Vulkan

1.2.131

1.3