NVIDIA Tesla K20c vs NVIDIA RTX A6000

VS

NVIDIA Tesla K20c

NVIDIA RTX A6000

We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 48GB VRAM RTX A6000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20c 's Advantages

Lower TDP (225W vs 300W)

NVIDIA RTX A6000 's Advantages

Released 7 years and 11 months late

Boost Clock1800MHz

More VRAM (48GB vs 5GB)

Larger VRAM bandwidth (768.0GB/s vs 208.0GB/s)

8256 additional rendering cores

Score

Benchmark

FP32 (float)

Tesla K20c

3.524 TFLOPS

RTX A6000 +998%

38.71 TFLOPS

OctaneBench

Tesla K20c

55

RTX A6000 +990%

600

Tesla K20c

VS

RTX A6000

Graphics Card

Nov 2012

Release Date

Oct 2020

Tesla

Generation

Quadro Ampere

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1410 MHz

-

Boost Clock

1800 MHz

1300 MHz

Memory Clock

2000 MHz

Memory

5GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

320bit

Memory Bus

384bit

208.0GB/s

Bandwidth

768.0GB/s

Render Config

-

SM Count

84

2496

Shading Units

10752

208

TMUs

336

40

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per SMX)

L1 Cache

128 KB (per SM)

1280 KB

L2 Cache

6 MB

-

Theoretical Performance

36.71 GPixel/s

Pixel Rate

201.6 GPixel/s

146.8 GTexel/s

Texture Rate

604.8 GTexel/s

-

FP16 (half)

38.71 TFLOPS

3.524 TFLOPS

FP32 (float)

38.71 TFLOPS

1175 GFLOPS

FP64 (double)

604.8 GFLOPS

Board Design

225W

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

GK110-885-KA-A1

GPU Variant

-

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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