NVIDIA A100 SXM4 40 GB vs NVIDIA A100 PCIe 80 GB

VS

NVIDIA A100 SXM4 40 GB NVIDIA A100 PCIe 80 GB

AI GPU We compared a GPU: 40GB VRAM A100 SXM4 40 GB and a Professional market GPU: 80GB VRAM A100 PCIe 80 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A100 PCIe 80 GB 's Advantages

Released 1 years and 1 months late

More VRAM (80GB vs 40GB)

Larger VRAM bandwidth (1935GB/s vs 1555GB/s)

Lower TDP (300W vs 400W)

Score

Benchmark

FP32 (float)

A100 SXM4 40 GB

19.49 TFLOPS

A100 PCIe 80 GB

19.49 TFLOPS

Blender

A100 SXM4 40 GB

2186

A100 PCIe 80 GB +74%

3823

OctaneBench

A100 SXM4 40 GB +62%

505

A100 PCIe 80 GB

310

A100 SXM4 40 GB

VS

A100 PCIe 80 GB

Graphics Card

May 2020

Release Date

Jun 2021

Tesla Ampere

Generation

Tesla Ampere

AI GPU

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1095 MHz

Base Clock

1065 MHz

1410 MHz

Boost Clock

1410 MHz

1215 MHz

Memory Clock

1512 MHz

Memory

40GB

Memory Size

80GB

HBM2e

Memory Type

HBM2e

5120bit

Memory Bus

5120bit

1555GB/s

Bandwidth

1935GB/s

Render Config

108

SM Count

108

-

Compute Units

-

6912

Shading Units

6912

432

TMUs

432

160

ROPs

160

432

Tensor Cores

432

-

RT Cores

-

192 KB (per SM)

L1 Cache

192 KB (per SM)

40 MB

L2 Cache

80 MB

Theoretical Performance

225.6 GPixel/s

Pixel Rate

225.6 GPixel/s

609.1 GTexel/s

Texture Rate

609.1 GTexel/s

77.97 TFLOPS

FP16 (half)

77.97 TFLOPS

19.49 TFLOPS

FP32 (float)

19.49 TFLOPS

9.746 TFLOPS

FP64 (double)

9.746 TFLOPS

Graphics Processor

GA100

GPU Name

GA100

-

GPU Variant

-

Ampere

Architecture

Ampere

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

54.2 billion

Transistors

54.2 billion

826 mm²

Die Size

826 mm²

Board Design

400W

TDP

300W

800 W

Suggested PSU

700 W

No outputs

Outputs

No outputs

None

Power Connectors

8-pin EPS

Graphics Features

N/A

DirectX

N/A

OpenGL

N/A

3.0

OpenCL

3.0

N/A

Vulkan

N/A

8.0

CUDA

8.0

N/A

Shader Model

N/A

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