NVIDIA Quadro K4000M vs NVIDIA Quadro K620

VS

We compared two Professional market GPUs: 4GB VRAM Quadro K4000M and 2GB VRAM Quadro K620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro K4000M 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (89.60GB/s vs 28.80GB/s)

576 additional rendering cores

NVIDIA Quadro K620 's Advantages

Released 2 years and 1 months late

Boost Clock1124MHz

Lower TDP (45W vs 100W)

Score

Benchmark

FP32 (float)

Quadro K4000M +33%

1.154 TFLOPS

Quadro K620

0.863 TFLOPS

Quadro K4000M

VS

Quadro K620

Graphics Card

Jun 2012

Release Date

Jul 2014

Quadro Mobile

Generation

Quadro

Professional

Type

Professional

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

1058 MHz

-

Boost Clock

1124 MHz

700 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

89.60GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

Compute Units

-

960

Shading Units

384

80

TMUs

24

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

Theoretical Performance

12.02 GPixel/s

Pixel Rate

17.98 GPixel/s

48.08 GTexel/s

Texture Rate

26.98 GTexel/s

-

FP16 (half)

-

1154 GFLOPS

FP32 (float)

863.2 GFLOPS

48.08 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

GK104

GPU Name

GM107

N14E-Q3-A2

GPU Variant

GM107-850-A2

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.87 billion

294 mm²

Die Size

148 mm²

Board Design

100W

TDP

45W

-

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x DisplayPort 1.4a

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

5.0

5.1

Shader Model

5.1

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