NVIDIA RTX A6000 vs NVIDIA H800 PCIe 80 GB

VS

AI GPU We compared a Professional market GPU: 48GB VRAM RTX A6000 and a GPU: 80GB VRAM H800 PCIe 80 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A6000 's Advantages

Boost Clock has increased by 3% (1800MHz vs 1755MHz)

Lower TDP (300W vs 350W)

NVIDIA H800 PCIe 80 GB 's Advantages

Released 2 years and 5 months late

More VRAM (80GB vs 48GB)

Larger VRAM bandwidth (2039GB/s vs 768.0GB/s)

3840 additional rendering cores

Score

Benchmark

FP32 (float)

RTX A6000

38.71 TFLOPS

H800 PCIe 80 GB +32%

51.22 TFLOPS

RTX A6000

VS

H800 PCIe 80 GB

Graphics Card

Oct 2020

Release Date

Mar 2023

Quadro Ampere

Generation

Tesla Hopper

Professional

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1410 MHz

Base Clock

1095 MHz

1800 MHz

Boost Clock

1755 MHz

2000 MHz

Memory Clock

1593 MHz

Memory

48GB

Memory Size

80GB

GDDR6

Memory Type

HBM2e

384bit

Memory Bus

5120bit

768.0GB/s

Bandwidth

2039GB/s

Render Config

84

SM Count

114

-

Compute Units

-

10752

Shading Units

14592

336

TMUs

456

112

ROPs

24

336

Tensor Cores

456

84

RT Cores

-

128 KB (per SM)

L1 Cache

256 KB (per SM)

6 MB

L2 Cache

50 MB

Theoretical Performance

201.6 GPixel/s

Pixel Rate

42.12 GPixel/s

604.8 GTexel/s

Texture Rate

800.3 GTexel/s

38.71 TFLOPS

FP16 (half)

204.9 TFLOPS

38.71 TFLOPS

FP32 (float)

51.22 TFLOPS

604.8 GFLOPS

FP64 (double)

25.61 TFLOPS

Graphics Processor

GA102

GPU Name

GH100

-

GPU Variant

-

Ampere

Architecture

Hopper

Samsung

Foundry

TSMC

8 nm

Process Size

4 nm

28.3 billion

Transistors

80 billion

628 mm²

Die Size

814 mm²

Board Design

300W

TDP

350W

700 W

Suggested PSU

750 W

4x DisplayPort 1.4a

Outputs

No outputs

8-pin EPS

Power Connectors

1x 16-pin

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

3.0

OpenCL

3.0

1.3

Vulkan

N/A

8.6

CUDA

9.0

6.7

Shader Model

N/A

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