NVIDIA H800 SXM5 vs NVIDIA GeForce RTX 4080 16 GB

VS

NVIDIA H800 SXM5 NVIDIA GeForce RTX 4080 16 GB

AI GPU We compared a GPU: 80GB VRAM H800 SXM5 and a Desktop platform GPU: 16GB VRAM GeForce RTX 4080 16 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA H800 SXM5 's Advantages

Released 6 months late

More VRAM (80GB vs 16GB)

Larger VRAM bandwidth (1681GB/s vs 716.8GB/s)

7168 additional rendering cores

NVIDIA GeForce RTX 4080 16 GB 's Advantages

Boost Clock has increased by 43% (2505MHz vs 1755MHz)

Lower TDP (320W vs 700W)

Score

Benchmark

FP32 (float)

H800 SXM5 +21%

59.3 TFLOPS

GeForce RTX 4080 16 GB

48.74 TFLOPS

H800 SXM5

VS

GeForce RTX 4080 16 GB

Graphics Card

Mar 2023

Release Date

Sep 2022

Tesla Hopper

Generation

GeForce 40

AI GPU

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1095 MHz

Base Clock

2205 MHz

1755 MHz

Boost Clock

2505 MHz

1313 MHz

Memory Clock

1400 MHz

Memory

80GB

Memory Size

16GB

HBM3

Memory Type

GDDR6X

5120bit

Memory Bus

256bit

1681GB/s

Bandwidth

716.8GB/s

Render Config

132

SM Count

76

-

Compute Units

-

16896

Shading Units

9728

528

TMUs

304

24

ROPs

112

528

Tensor Cores

304

-

RT Cores

76

256 KB (per SM)

L1 Cache

128 KB (per SM)

50 MB

L2 Cache

64 MB

Theoretical Performance

42.12 GPixel/s

Pixel Rate

280.6 GPixel/s

926.6 GTexel/s

Texture Rate

761.5 GTexel/s

237.2 TFLOPS

FP16 (half)

48.74 TFLOPS

59.30 TFLOPS

FP32 (float)

48.74 TFLOPS

29.65 TFLOPS

FP64 (double)

761.5 GFLOPS

Graphics Processor

GH100

GPU Name

AD103

-

GPU Variant

AD103-300-A1

Hopper

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

4 nm

Process Size

4 nm

80 billion

Transistors

45.9 billion

814 mm²

Die Size

379 mm²

Board Design

700W

TDP

320W

1100 W

Suggested PSU

700 W

No outputs

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

8-pin EPS

Power Connectors

1x 16-pin

Graphics Features

N/A

DirectX

12 Ultimate (12_2)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.3

9.0

CUDA

8.9

N/A

Shader Model

6.6

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