NVIDIA A100 PCIe 80 GB vs NVIDIA Tesla P40

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We compared two Professional market GPUs: 80GB VRAM A100 PCIe 80 GB and 24GB VRAM Tesla P40 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 4 years and 9 months late

More VRAM (80GB vs 24GB)

Larger VRAM bandwidth (1935GB/s vs 347.1GB/s)

3072 additional rendering cores

NVIDIA Tesla P40 's Advantages

Boost Clock has increased by 9% (1531MHz vs 1410MHz)

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

A100 PCIe 80 GB +65%

19.49 TFLOPS

Tesla P40

11.76 TFLOPS

Blender

A100 PCIe 80 GB +377%

3823

Tesla P40

800

OctaneBench

A100 PCIe 80 GB +86%

310

Tesla P40

166

A100 PCIe 80 GB

VS

Tesla P40

Graphics Card

Jun 2021

Release Date

Sep 2016

Tesla Ampere

Generation

Tesla Pascal

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1065 MHz

Base Clock

1303 MHz

1410 MHz

Boost Clock

1531 MHz

1512 MHz

Memory Clock

1808 MHz

Memory

80GB

Memory Size

24GB

HBM2e

Memory Type

GDDR5

5120bit

Memory Bus

384bit

1935GB/s

Bandwidth

347.1GB/s

Render Config

108

SM Count

30

-

Compute Units

-

6912

Shading Units

3840

432

TMUs

240

160

ROPs

96

432

Tensor Cores

-

RT Cores

-

192 KB (per SM)

L1 Cache

48 KB (per SM)

80 MB

L2 Cache

3 MB

Theoretical Performance

225.6 GPixel/s

Pixel Rate

147.0 GPixel/s

609.1 GTexel/s

Texture Rate

367.4 GTexel/s

77.97 TFLOPS

FP16 (half)

183.7 GFLOPS

19.49 TFLOPS

FP32 (float)

11.76 TFLOPS

9.746 TFLOPS

FP64 (double)

367.4 GFLOPS

Graphics Processor

GA100

GPU Name

GP102

-

GPU Variant

-

Ampere

Architecture

Pascal

TSMC

Foundry

TSMC

7 nm

Process Size

16 nm

54.2 billion

Transistors

11.8 billion

826 mm²

Die Size

471 mm²

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

8-pin EPS

Graphics Features

N/A

DirectX

12 (12_1)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.3

8.0

CUDA

6.1

N/A

Shader Model

6.7

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