NVIDIA Tesla K20Xm vs NVIDIA Quadro K620

VS

NVIDIA Tesla K20Xm

NVIDIA Quadro K620

We compared two Professional market GPUs: 6GB VRAM Tesla K20Xm and 2GB VRAM Quadro K620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20Xm 's Advantages

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (249.6GB/s vs 28.80GB/s)

2304 additional rendering cores

NVIDIA Quadro K620 's Advantages

Released 1 years and 8 months late

Boost Clock1124MHz

Lower TDP (45W vs 235W)

Score

Benchmark

FP32 (float)

Tesla K20Xm +355%

3.935 TFLOPS

Quadro K620

0.863 TFLOPS

Tesla K20Xm

VS

Quadro K620

Graphics Card

Nov 2012

Release Date

Jul 2014

Tesla

Generation

Quadro

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

1058 MHz

-

Boost Clock

1124 MHz

1300 MHz

Memory Clock

900 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

249.6GB/s

Bandwidth

28.80GB/s

Render Config

-

2688

Shading Units

384

224

TMUs

24

48

ROPs

16

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

1536 KB

L2 Cache

2 MB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

17.98 GPixel/s

164.0 GTexel/s

Texture Rate

26.98 GTexel/s

-

3.935 TFLOPS

FP32 (float)

863.2 GFLOPS

1312 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

235W

TDP

45W

550 W

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

GK110

GPU Name

GM107

-

GPU Variant

GM107-850-A2

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

1.87 billion

561 mm²

Die Size

148 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

5.0

5.1

Shader Model

5.1

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