NVIDIA Tesla K40d vs NVIDIA Quadro K420

VS

NVIDIA Tesla K40d

NVIDIA Quadro K420

We compared two Professional market GPUs: 12GB VRAM Tesla K40d and 1024MB VRAM Quadro K420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K40d 's Advantages

Boost Clock876MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (288.4GB/s vs 28.51GB/s)

2688 additional rendering cores

NVIDIA Quadro K420 's Advantages

Released 8 months late

Lower TDP (41W vs 245W)

Score

Benchmark

FP32 (float)

Tesla K40d +1401%

5.046 TFLOPS

Quadro K420

0.336 TFLOPS

Tesla K40d

VS

Quadro K420

Graphics Card

Nov 2013

Release Date

Jul 2014

Tesla

Generation

Quadro

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

745 MHz

Base Clock

-

876 MHz

Boost Clock

-

1502 MHz

Memory Clock

891 MHz

Memory

12GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

288.4GB/s

Bandwidth

28.51GB/s

Render Config

-

2880

Shading Units

192

240

TMUs

16

48

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

1536 KB

L2 Cache

256 KB

-

Theoretical Performance

52.56 GPixel/s

Pixel Rate

3.504 GPixel/s

210.2 GTexel/s

Texture Rate

14.02 GTexel/s

-

5.046 TFLOPS

FP32 (float)

336.4 GFLOPS

1.682 TFLOPS

FP64 (double)

14.02 GFLOPS

Board Design

245W

TDP

41W

550 W

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x DisplayPort 1.2

-

Power Connectors

None

Graphics Processor

GK110B

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_1)

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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