H800 PCIe 80 GB and GeForce RTX 5080 - video card comparison

H800 PCIe 80 GB

GeForce RTX 5080

Architecture

Hopper (2022)

Blackwell 2.0

GPU code name

GH100

GB203

Market segment

Desktop

Release date

March 2023

2025 (recently)

Interface

PCIe 5.0 x16

Supplementary power connectors

1x 16-pin

Boost clock speed

1755 MHz

2520 MHz

Manufacturing process technology

4 nm

0 nm

Number of transistors

80,000 million

Pipelines / CUDA cores

14592

10752

Power consumption (TDP)

350 Watt

Texture fill rate

800.3

846.7

Memory type

HBM2e

GDDR7

Maximum RAM amount

80 GB

16 GB

Memory bus width

5120 Bit

256 Bit

Memory clock speed

3.2 GB/s

5 GB/s

Memory bandwidth

2,039 GB/s

160.0 GB/s

Display Connectors

No outputs

1x HDMI 2.1, 3x DisplayPort 1.4a

HDMI

DirectX

N/A

12 Ultimate (12_2)

CUDA

9.0

9.1

OpenCL

3.0

OpenGL

N/A

4.6

Shader Model

N/A

6.7

Vulkan

N/A

1.3