NVIDIA GRID A100B vs NVIDIA Tesla K20m

VS

We compared two Professional market GPUs: 48GB VRAM GRID A100B and 5GB VRAM Tesla K20m to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GRID A100B 's Advantages

Released 7 years and 4 months late

Boost Clock1005MHz

More VRAM (48GB vs 5GB)

Larger VRAM bandwidth (1866GB/s vs 208.0GB/s)

4416 additional rendering cores

NVIDIA Tesla K20m 's Advantages

Lower TDP (225W vs 400W)

Score

Benchmark

FP32 (float)

GRID A100B +294%

13.89 TFLOPS

Tesla K20m

3.524 TFLOPS

GRID A100B

VS

Tesla K20m

Graphics Card

May 2020

Release Date

Jan 2013

GRID

Generation

Tesla

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

1005 MHz

Boost Clock

-

1215 MHz

Memory Clock

1300 MHz

Memory

48GB

Memory Size

5GB

HBM2e

Memory Type

GDDR5

6144bit

Memory Bus

320bit

1866GB/s

Bandwidth

208.0GB/s

Render Config

108

SM Count

-

Compute Units

-

6912

Shading Units

2496

432

TMUs

208

192

ROPs

40

432

Tensor Cores

-

RT Cores

-

192 KB (per SM)

L1 Cache

16 KB (per SMX)

48 MB

L2 Cache

1280 KB

Theoretical Performance

193.0 GPixel/s

Pixel Rate

36.71 GPixel/s

434.2 GTexel/s

Texture Rate

146.8 GTexel/s

55.57 TFLOPS

FP16 (half)

-

13.89 TFLOPS

FP32 (float)

3.524 TFLOPS

6.947 TFLOPS

FP64 (double)

1175 GFLOPS

Graphics Processor

GA100

GPU Name

GK110

-

GPU Variant

-

Ampere

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

54.2 billion

Transistors

7.08 billion

826 mm²

Die Size

561 mm²

Board Design

400W

TDP

225W

800 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

N/A

DirectX

12 (11_0)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.1

8.0

CUDA

3.5

N/A

Shader Model

5.1

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