NVIDIA Quadro RTX 4000 vs NVIDIA Quadro K620

VS

NVIDIA Quadro RTX 4000 NVIDIA Quadro K620

We compared two Professional market GPUs: 8GB VRAM Quadro RTX 4000 and 2GB VRAM Quadro K620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro RTX 4000 's Advantages

Released 4 years and 4 months late

Boost Clock has increased by 37% (1545MHz vs 1124MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (416.0GB/s vs 28.80GB/s)

1920 additional rendering cores

NVIDIA Quadro K620 's Advantages

Lower TDP (45W vs 160W)

Score

Benchmark

FP32 (float)

Quadro RTX 4000 +724%

7.119 TFLOPS

Quadro K620

0.863 TFLOPS

Quadro RTX 4000

VS

Quadro K620

Graphics Card

Nov 2018

Release Date

Jul 2014

Quadro

Generation

Quadro

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1005 MHz

Base Clock

1058 MHz

1545 MHz

Boost Clock

1124 MHz

1625 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

416.0GB/s

Bandwidth

28.80GB/s

Render Config

36

SM Count

-

Compute Units

-

2304

Shading Units

384

144

TMUs

24

64

ROPs

16

288

Tensor Cores

-

36

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SMM)

4 MB

L2 Cache

2 MB

Theoretical Performance

98.88 GPixel/s

Pixel Rate

17.98 GPixel/s

222.5 GTexel/s

Texture Rate

26.98 GTexel/s

14.24 TFLOPS

FP16 (half)

-

7.119 TFLOPS

FP32 (float)

863.2 GFLOPS

222.5 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

TU104

GPU Name

GM107

TU104-850-A1

GPU Variant

GM107-850-A2

Turing

Architecture

Maxwell

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

13.6 billion

Transistors

1.87 billion

545 mm²

Die Size

148 mm²

Board Design

160W

TDP

45W

450 W

Suggested PSU

200 W

3x DisplayPort 1.4a 1x USB Type-C

Outputs

1x DVI 1x DisplayPort 1.4a

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

7.5

CUDA

5.0

6.6

Shader Model

5.1

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