NVIDIA Tesla K20Xm vs NVIDIA A100 PCIe 80 GB

VS

NVIDIA Tesla K20Xm

NVIDIA A100 PCIe 80 GB

We compared two Professional market GPUs: 6GB VRAM Tesla K20Xm and 80GB VRAM A100 PCIe 80 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20Xm 's Advantages

Lower TDP (235W vs 300W)

NVIDIA A100 PCIe 80 GB 's Advantages

Released 8 years and 7 months late

Boost Clock1410MHz

More VRAM (80GB vs 6GB)

Larger VRAM bandwidth (1.94TB/s vs 249.6GB/s)

4224 additional rendering cores

Score

Benchmark

FP32 (float)

Tesla K20Xm

3.935 TFLOPS

A100 PCIe 80 GB +395%

19.49 TFLOPS

Blender

Tesla K20Xm

372

A100 PCIe 80 GB +900%

3722

OctaneBench

Tesla K20Xm

63

A100 PCIe 80 GB +392%

310

Tesla K20Xm

VS

A100 PCIe 80 GB

Graphics Card

Nov 2012

Release Date

Jun 2021

Tesla

Generation

Tesla Ampere(Axx)

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1065 MHz

-

Boost Clock

1410 MHz

1300 MHz

Memory Clock

1512 MHz

Memory

6GB

Memory Size

80GB

GDDR5

Memory Type

HBM2e

384bit

Memory Bus

5120bit

249.6GB/s

Bandwidth

1.94TB/s

Render Config

-

SM Count

108

2688

Shading Units

6912

224

TMUs

432

48

ROPs

160

-

Tensor Cores

432

-

16 KB (per SMX)

L1 Cache

192 KB (per SM)

1536 KB

L2 Cache

80 MB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

225.6 GPixel/s

164.0 GTexel/s

Texture Rate

609.1 GTexel/s

-

FP16 (half)

77.97 TFLOPS

3.935 TFLOPS

FP32 (float)

19.49 TFLOPS

1312 GFLOPS

FP64 (double)

9.746 TFLOPS

Board Design

235W

TDP

300W

550 W

Suggested PSU

700 W

No outputs

Outputs

No outputs

-

Power Connectors

8-pin EPS

Graphics Processor

GK110

GPU Name

GA100

-

Kepler

Architecture

Ampere

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

7.08 billion

Transistors

54.2 billion

561 mm²

Die Size

826 mm²

Graphics Features

12 (11_0)

DirectX

N/A

4.6

OpenGL

N/A

3.0

OpenCL

3.0

1.1

Vulkan

N/A

3.5

CUDA

8.0

5.1

Shader Model

N/A

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