NVIDIA Quadro K620 vs NVIDIA Quadro K4000

VS

We compared two Professional market GPUs: 2GB VRAM Quadro K620 and 3GB VRAM Quadro K4000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro K620 's Advantages

Released 1 years and 4 months late

Boost Clock1124MHz

Lower TDP (45W vs 80W)

NVIDIA Quadro K4000 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (134.8GB/s vs 28.80GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Quadro K620

0.863 TFLOPS

Quadro K4000 +44%

1.244 TFLOPS

Quadro K620

VS

Quadro K4000

Graphics Card

Jul 2014

Release Date

Mar 2013

Quadro

Generation

Quadro

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1058 MHz

Base Clock

-

1124 MHz

Boost Clock

-

900 MHz

Memory Clock

1404 MHz

Memory

2GB

Memory Size

3GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

28.80GB/s

Bandwidth

134.8GB/s

Render Config

-

SM Count

-

Compute Units

-

384

Shading Units

768

24

TMUs

64

16

ROPs

24

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

Theoretical Performance

17.98 GPixel/s

Pixel Rate

12.96 GPixel/s

26.98 GTexel/s

Texture Rate

51.84 GTexel/s

-

FP16 (half)

-

863.2 GFLOPS

FP32 (float)

1244 GFLOPS

26.98 GFLOPS

FP64 (double)

51.84 GFLOPS

Graphics Processor

GM107

GPU Name

GK106

GM107-850-A2

GPU Variant

-

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

2.54 billion

148 mm²

Die Size

221 mm²

Board Design

45W

TDP

80W

200 W

Suggested PSU

250 W

1x DVI 1x DisplayPort 1.4a

Outputs

1x DVI 2x DisplayPort 1.2

None

Power Connectors

1x 6-pin

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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