NVIDIA Quadro K420 vs NVIDIA RTX A4500

VS

NVIDIA Quadro K420

NVIDIA RTX A4500

We compared two Professional market GPUs: 1024MB VRAM Quadro K420 and 20GB VRAM RTX A4500 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 200W)

NVIDIA RTX A4500 's Advantages

Released 7 years and 4 months late

Boost Clock1650MHz

More VRAM (20GB vs 1024GB)

Larger VRAM bandwidth (640.0GB/s vs 28.51GB/s)

6976 additional rendering cores

Score

Benchmark

FP32 (float)

Quadro K420

0.336 TFLOPS

RTX A4500 +6938%

23.65 TFLOPS

Quadro K420

VS

RTX A4500

Graphics Card

Jul 2014

Release Date

Nov 2021

Quadro

Generation

Quadro Ampere

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1050 MHz

-

Boost Clock

1650 MHz

891 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

20GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

320bit

28.51GB/s

Bandwidth

640.0GB/s

Render Config

-

SM Count

56

192

Shading Units

7168

16

TMUs

224

16

ROPs

96

-

Tensor Cores

224

-

RT Cores

56

16 KB (per SMX)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

6 MB

-

Theoretical Performance

3.504 GPixel/s

Pixel Rate

158.4 GPixel/s

14.02 GTexel/s

Texture Rate

369.6 GTexel/s

-

FP16 (half)

23.65 TFLOPS

336.4 GFLOPS

FP32 (float)

23.65 TFLOPS

14.02 GFLOPS

FP64 (double)

369.6 GFLOPS

Board Design

41W

TDP

200W

200 W

Suggested PSU

550 W

1x DVI 1x DisplayPort 1.2

Outputs

4x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

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

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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