NVIDIA RTX A4000 vs NVIDIA Tesla K20s

VS

We compared two Professional market GPUs: 16GB VRAM RTX A4000 and 5GB VRAM Tesla K20s to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000 's Advantages

Released 8 years and 2 months late

Boost Clock1560MHz

More VRAM (16GB vs 5GB)

Larger VRAM bandwidth (448.0GB/s vs 208.0GB/s)

3648 additional rendering cores

Lower TDP (140W vs 225W)

Score

Benchmark

FP32 (float)

RTX A4000 +567%

19.17 TFLOPS

Tesla K20s

2.87 TFLOPS

RTX A4000

VS

Tesla K20s

Graphics Card

Apr 2021

Release Date

Feb 2013

Quadro Ampere

Generation

Tesla

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

735 MHz

Base Clock

-

1560 MHz

Boost Clock

-

1750 MHz

Memory Clock

1300 MHz

Memory

16GB

Memory Size

5GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

320bit

448.0GB/s

Bandwidth

208.0GB/s

Render Config

48

SM Count

-

Compute Units

-

6144

Shading Units

2496

192

TMUs

208

96

ROPs

40

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

1280 KB

Theoretical Performance

149.8 GPixel/s

Pixel Rate

29.90 GPixel/s

299.5 GTexel/s

Texture Rate

119.6 GTexel/s

19.17 TFLOPS

FP16 (half)

-

19.17 TFLOPS

FP32 (float)

2.870 TFLOPS

299.5 GFLOPS

FP64 (double)

956.8 GFLOPS

Graphics Processor

GA104

GPU Name

GK110

GA104-875-A1

GPU Variant

-

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

7.08 billion

392 mm²

Die Size

561 mm²

Board Design

140W

TDP

225W

300 W

Suggested PSU

550 W

4x DisplayPort 1.4a

Outputs

No outputs

1x 6-pin

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.6

CUDA

3.5

6.7

Shader Model

5.1

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