NVIDIA Quadro K620 vs NVIDIA RTX A4000 Mobile

VS

NVIDIA Quadro K620

NVIDIA RTX A4000 Mobile

We compared two Professional market GPUs: 2GB VRAM Quadro K620 and 8GB VRAM RTX A4000 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro K620 's Advantages

Lower TDP (45W vs 115W)

NVIDIA RTX A4000 Mobile 's Advantages

Released 6 years and 9 months late

Boost Clock has increased by 49% (1680MHz vs 1124MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 28.80GB/s)

4736 additional rendering cores

Score

Benchmark

FP32 (float)

Quadro K620

0.863 TFLOPS

RTX A4000 Mobile +1893%

17.2 TFLOPS

Quadro K620

VS

RTX A4000 Mobile

Graphics Card

Jul 2014

Release Date

Apr 2021

Quadro

Generation

Quadro Ampere-M

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1058 MHz

Base Clock

1140 MHz

1124 MHz

Boost Clock

1680 MHz

900 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

40

384

Shading Units

5120

24

TMUs

160

16

ROPs

80

-

Tensor Cores

160

-

RT Cores

40

64 KB (per SMM)

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

4 MB

-

Theoretical Performance

17.98 GPixel/s

Pixel Rate

134.4 GPixel/s

26.98 GTexel/s

Texture Rate

268.8 GTexel/s

-

FP16 (half)

17.20 TFLOPS

863.2 GFLOPS

FP32 (float)

17.20 TFLOPS

26.98 GFLOPS

FP64 (double)

268.8 GFLOPS

Board Design

45W

TDP

115W

200 W

Suggested PSU

-

1x DVI 1x DisplayPort 1.4a

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

GM107

GPU Name

GA104

GM107-850-A2

GPU Variant

-

Maxwell

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

1.87 billion

Transistors

17.4 billion

148 mm²

Die Size

392 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

5.0

CUDA

8.6

5.1

Shader Model

6.7

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