NVIDIA RTX A6000 vs NVIDIA Quadro K420

VS

NVIDIA RTX A6000

NVIDIA Quadro K420

We compared two Professional market GPUs: 48GB VRAM RTX A6000 and 1024MB VRAM Quadro K420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A6000 's Advantages

Released 6 years and 3 months late

Boost Clock1800MHz

More VRAM (48GB vs 1024GB)

Larger VRAM bandwidth (768.0GB/s vs 28.51GB/s)

10560 additional rendering cores

NVIDIA Quadro K420 's Advantages

Lower TDP (41W vs 300W)

Score

Benchmark

FP32 (float)

RTX A6000 +11420%

38.71 TFLOPS

Quadro K420

0.336 TFLOPS

RTX A6000

VS

Quadro K420

Graphics Card

Oct 2020

Release Date

Jul 2014

Quadro Ampere

Generation

Quadro

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1410 MHz

Base Clock

-

1800 MHz

Boost Clock

-

2000 MHz

Memory Clock

891 MHz

Memory

48GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

384bit

Memory Bus

128bit

768.0GB/s

Bandwidth

28.51GB/s

Render Config

-

84

SM Count

-

10752

Shading Units

192

336

TMUs

16

112

ROPs

16

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

256 KB

-

Theoretical Performance

201.6 GPixel/s

Pixel Rate

3.504 GPixel/s

604.8 GTexel/s

Texture Rate

14.02 GTexel/s

38.71 TFLOPS

FP16 (half)

-

38.71 TFLOPS

FP32 (float)

336.4 GFLOPS

604.8 GFLOPS

FP64 (double)

14.02 GFLOPS

Board Design

300W

TDP

41W

700 W

Suggested PSU

200 W

4x DisplayPort 1.4a

Outputs

1x DVI 1x DisplayPort 1.2

8-pin EPS

Power Connectors

None

Graphics Processor

GA102

GPU Name

GK107

-

GPU Variant

GK107-301-A2

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

1.27 billion

628 mm²

Die Size

118 mm²

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

3.0

6.7

Shader Model

5.1

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