H800 SXM5 and Radeon 780M - video card comparison

H800 SXM5

Radeon 780M

Architecture

Hopper (2022)

RDNA 3

GPU code name

GH100

Phoenix

Market segment

Desktop

Laptop

Release date

March 2023

January 2023

Interface

PCIe 5.0 x16

PCIe 4.0 x8

Supplementary power connectors

8-pin EPS

None

Boost clock speed

1755 MHz

3000 MHz

Core clock speed

-

1500 MHz

Manufacturing process technology

4 nm

4 nm

Number of transistors

80,000 million

25,390 million

Pipelines / CUDA cores

16896

768

Power consumption (TDP)

700 Watt

54 Watt (35 - 54 Watt TGP)

Texture fill rate

926.6

139.2

Memory type

HBM3

System Shared

Maximum RAM amount

80 GB

System Shared

Memory bus width

5120 Bit

System Shared

Memory clock speed

2.6 GB/s

System Shared

Memory bandwidth

1,681 GB/s

-

Shared memory

-

+

Display Connectors

No outputs

Portable Device Dependent

DirectX

N/A

12 Ultimate (12_2)

CUDA

9.0

-

OpenCL

3.0

2.1

OpenGL

N/A

4.6

Shader Model

N/A

6.7

Vulkan

N/A

1.3