NVIDIA RTX A4500 vs NVIDIA Quadro K620M

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We compared two Professional market GPUs: 20GB VRAM RTX A4500 and 2GB VRAM Quadro K620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4500 's Advantages

Released 6 years and 8 months late

Boost Clock has increased by 47% (1650MHz vs 1124MHz)

More VRAM (20GB vs 2GB)

Larger VRAM bandwidth (640.0GB/s vs 14.40GB/s)

6784 additional rendering cores

NVIDIA Quadro K620M 's Advantages

Lower TDP (30W vs 200W)

Score

Benchmark

FP32 (float)

RTX A4500 +2640%

23.65 TFLOPS

Quadro K620M

0.863 TFLOPS

RTX A4500

VS

Quadro K620M

Graphics Card

Nov 2021

Release Date

Mar 2015

Quadro Ampere

Generation

Quadro Mobile

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

1050 MHz

Base Clock

1029 MHz

1650 MHz

Boost Clock

1124 MHz

2000 MHz

Memory Clock

900 MHz

Memory

20GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

320bit

Memory Bus

64bit

640.0GB/s

Bandwidth

14.40GB/s

Render Config

56

SM Count

-

Compute Units

-

7168

Shading Units

384

224

TMUs

16

96

ROPs

8

224

Tensor Cores

-

56

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SMM)

6 MB

L2 Cache

1024 KB

Theoretical Performance

158.4 GPixel/s

Pixel Rate

8.992 GPixel/s

369.6 GTexel/s

Texture Rate

17.98 GTexel/s

23.65 TFLOPS

FP16 (half)

-

23.65 TFLOPS

FP32 (float)

863.2 GFLOPS

369.6 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

GA102

GPU Name

GM108

-

GPU Variant

N15M-Q3

Ampere

Architecture

Maxwell

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

Unknown

628 mm²

Die Size

Unknown

Board Design

200W

TDP

30W

550 W

Suggested PSU

-

4x DisplayPort 1.4a

Outputs

No outputs

1x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.6

CUDA

5.0

6.7

Shader Model

5.1

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