NVIDIA Tesla K20s vs NVIDIA Quadro K420

VS

NVIDIA Tesla K20s

NVIDIA Quadro K420

We compared two Professional market GPUs: 5GB VRAM Tesla K20s and 1024MB VRAM Quadro K420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20s 's Advantages

More VRAM (5GB vs 1024GB)

Larger VRAM bandwidth (208.0GB/s vs 28.51GB/s)

2304 additional rendering cores

NVIDIA Quadro K420 's Advantages

Released 1 years and 5 months late

Lower TDP (41W vs 225W)

Score

Benchmark

FP32 (float)

Tesla K20s +754%

2.87 TFLOPS

Quadro K420

0.336 TFLOPS

Tesla K20s

VS

Quadro K420

Graphics Card

Feb 2013

Release Date

Jul 2014

Tesla

Generation

Quadro

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1300 MHz

Memory Clock

891 MHz

Memory

5GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

320bit

Memory Bus

128bit

208.0GB/s

Bandwidth

28.51GB/s

Render Config

-

2496

Shading Units

192

208

TMUs

16

40

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

1280 KB

L2 Cache

256 KB

-

Theoretical Performance

29.90 GPixel/s

Pixel Rate

3.504 GPixel/s

119.6 GTexel/s

Texture Rate

14.02 GTexel/s

-

2.870 TFLOPS

FP32 (float)

336.4 GFLOPS

956.8 GFLOPS

FP64 (double)

14.02 GFLOPS

Board Design

225W

TDP

41W

550 W

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x DisplayPort 1.2

-

Power Connectors

None

Graphics Processor

GK110

GPU Name

GK107

-

GPU Variant

GK107-301-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

1.27 billion

561 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.5

CUDA

3.0

5.1

Shader Model

5.1

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