NVIDIA A100 PCIe 80 GB vs NVIDIA A100 SXM4 80 GB

VS

NVIDIA A100 PCIe 80 GB NVIDIA A100 SXM4 80 GB

AI GPU We compared a Professional market GPU: 80GB VRAM A100 PCIe 80 GB and a GPU: 80GB VRAM A100 SXM4 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 7 months late

Lower TDP (300W vs 400W)

NVIDIA A100 SXM4 80 GB 's Advantages

Larger VRAM bandwidth (2039GB/s vs 1935GB/s)

Score

Benchmark

FP32 (float)

A100 PCIe 80 GB

19.49 TFLOPS

A100 SXM4 80 GB

19.49 TFLOPS

OctaneBench

A100 PCIe 80 GB

310

A100 SXM4 80 GB +66%

516

A100 PCIe 80 GB

VS

A100 SXM4 80 GB

Graphics Card

Jun 2021

Release Date

Nov 2020

Tesla Ampere

Generation

Tesla Ampere

Professional

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1065 MHz

Base Clock

1275 MHz

1410 MHz

Boost Clock

1410 MHz

1512 MHz

Memory Clock

1593 MHz

Memory

80GB

Memory Size

80GB

HBM2e

Memory Type

HBM2e

5120bit

Memory Bus

5120bit

1935GB/s

Bandwidth

2039GB/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)

80 MB

L2 Cache

40 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

300W

TDP

400W

700 W

Suggested PSU

800 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

None

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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