NVIDIA Quadro K620M vs NVIDIA Quadro K420

VS

We compared two Professional market GPUs: 2GB VRAM Quadro K620M and 1024MB VRAM Quadro K420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro K620M 's Advantages

Released 8 months late

Boost Clock1124MHz

More VRAM (2GB vs 1GB)

192 additional rendering cores

Lower TDP (30W vs 41W)

NVIDIA Quadro K420 's Advantages

Larger VRAM bandwidth (28.51GB/s vs 14.40GB/s)

Score

Benchmark

FP32 (float)

Quadro K620M +156%

0.863 TFLOPS

Quadro K420

0.336 TFLOPS

Quadro K620M

VS

Quadro K420

Graphics Card

Mar 2015

Release Date

Jul 2014

Quadro Mobile

Generation

Quadro

Professional

Type

Professional

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

900 MHz

Memory Clock

891 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

28.51GB/s

Render Config

-

SM Count

-

Compute Units

-

384

Shading Units

192

16

TMUs

16

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

Theoretical Performance

8.992 GPixel/s

Pixel Rate

3.504 GPixel/s

17.98 GTexel/s

Texture Rate

14.02 GTexel/s

-

FP16 (half)

-

863.2 GFLOPS

FP32 (float)

336.4 GFLOPS

26.98 GFLOPS

FP64 (double)

14.02 GFLOPS

Graphics Processor

GM108

GPU Name

GK107

N15M-Q3

GPU Variant

GK107-301-A2

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.27 billion

Unknown

Die Size

118 mm²

Board Design

30W

TDP

41W

-

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x DisplayPort 1.2

None

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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