NVIDIA Quadro K420 vs NVIDIA RTX A6000

VS

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

Main Differences

NVIDIA Quadro K420 's Advantages

Lower TDP (41W vs 300W)

NVIDIA RTX A6000 's Advantages

Released 6 years and 3 months late

Boost Clock1800MHz

More VRAM (48GB vs 1GB)

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

10560 additional rendering cores

Score

Benchmark

FP32 (float)

Quadro K420

0.336 TFLOPS

RTX A6000 +11420%

38.71 TFLOPS

Quadro K420

VS

RTX A6000

Graphics Card

Jul 2014

Release Date

Oct 2020

Quadro

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

891 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

48GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

384bit

28.51GB/s

Bandwidth

768.0GB/s

Render Config

-

SM Count

84

-

Compute Units

-

192

Shading Units

10752

16

TMUs

336

16

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per SMX)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

6 MB

Theoretical Performance

3.504 GPixel/s

Pixel Rate

201.6 GPixel/s

14.02 GTexel/s

Texture Rate

604.8 GTexel/s

-

FP16 (half)

38.71 TFLOPS

336.4 GFLOPS

FP32 (float)

38.71 TFLOPS

14.02 GFLOPS

FP64 (double)

604.8 GFLOPS

Graphics Processor

GK107

GPU Name

GA102

GK107-301-A2

GPU Variant

-

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

1.27 billion

Transistors

28.3 billion

118 mm²

Die Size

628 mm²

Board Design

41W

TDP

300W

200 W

Suggested PSU

700 W

1x DVI 1x DisplayPort 1.2

Outputs

4x DisplayPort 1.4a

None

Power Connectors

8-pin EPS

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

3.0

CUDA

8.6

5.1

Shader Model

6.7

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