NVIDIA Tesla K20X vs NVIDIA RTX A6000

VS

NVIDIA Tesla K20X

NVIDIA RTX A6000

We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 48GB VRAM RTX A6000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20X 's Advantages

Lower TDP (235W vs 300W)

NVIDIA RTX A6000 's Advantages

Released 7 years and 11 months late

Boost Clock1800MHz

More VRAM (48GB vs 6GB)

Larger VRAM bandwidth (768.0GB/s vs 249.6GB/s)

8064 additional rendering cores

Score

Benchmark

FP32 (float)

Tesla K20X

3.935 TFLOPS

RTX A6000 +883%

38.71 TFLOPS

Tesla K20X

VS

RTX A6000

Graphics Card

Nov 2012

Release Date

Oct 2020

Tesla

Generation

Quadro Ampere

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1410 MHz

-

Boost Clock

1800 MHz

1300 MHz

Memory Clock

2000 MHz

Memory

6GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

384bit

249.6GB/s

Bandwidth

768.0GB/s

Render Config

-

SM Count

84

2688

Shading Units

10752

224

TMUs

336

48

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per SMX)

L1 Cache

128 KB (per SM)

1536 KB

L2 Cache

6 MB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

201.6 GPixel/s

164.0 GTexel/s

Texture Rate

604.8 GTexel/s

-

FP16 (half)

38.71 TFLOPS

3.935 TFLOPS

FP32 (float)

38.71 TFLOPS

1312 GFLOPS

FP64 (double)

604.8 GFLOPS

Board Design

235W

TDP

300W

550 W

Suggested PSU

700 W

No outputs

Outputs

4x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

8-pin EPS

Graphics Processor

GK110

GPU Name

GA102

-

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

7.08 billion

Transistors

28.3 billion

561 mm²

Die Size

628 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

8.6

5.1

Shader Model

6.7

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