NVIDIA RTX A4000 Mobile vs NVIDIA Quadro K420

VS

NVIDIA RTX A4000 Mobile

NVIDIA Quadro K420

We compared two Professional market GPUs: 8GB VRAM RTX A4000 Mobile and 1024MB VRAM Quadro K420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000 Mobile 's Advantages

Released 6 years and 9 months late

Boost Clock1680MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 28.51GB/s)

4928 additional rendering cores

NVIDIA Quadro K420 's Advantages

Lower TDP (41W vs 115W)

Score

Benchmark

FP32 (float)

RTX A4000 Mobile +5019%

17.2 TFLOPS

Quadro K420

0.336 TFLOPS

RTX A4000 Mobile

VS

Quadro K420

Graphics Card

Apr 2021

Release Date

Jul 2014

Quadro Ampere-M

Generation

Quadro

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1140 MHz

Base Clock

-

1680 MHz

Boost Clock

-

1500 MHz

Memory Clock

891 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

384.0GB/s

Bandwidth

28.51GB/s

Render Config

-

40

SM Count

-

5120

Shading Units

192

160

TMUs

16

80

ROPs

16

160

Tensor Cores

-

40

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

134.4 GPixel/s

Pixel Rate

3.504 GPixel/s

268.8 GTexel/s

Texture Rate

14.02 GTexel/s

17.20 TFLOPS

FP16 (half)

-

17.20 TFLOPS

FP32 (float)

336.4 GFLOPS

268.8 GFLOPS

FP64 (double)

14.02 GFLOPS

Board Design

115W

TDP

41W

-

Suggested PSU

200 W

Portable Device Dependent

Outputs

1x DVI 1x DisplayPort 1.2

None

Power Connectors

None

Graphics Processor

GA104

GPU Name

GK107

-

GPU Variant

GK107-301-A2

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

1.27 billion

392 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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