NVIDIA Tesla K20c vs NVIDIA Quadro K620M

VS

NVIDIA Tesla K20c

NVIDIA Quadro K620M

We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 2GB VRAM Quadro K620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20c 's Advantages

More VRAM (5GB vs 2GB)

Larger VRAM bandwidth (208.0GB/s vs 14.40GB/s)

2112 additional rendering cores

NVIDIA Quadro K620M 's Advantages

Released 2 years and 4 months late

Boost Clock1124MHz

Lower TDP (30W vs 225W)

Score

Benchmark

FP32 (float)

Tesla K20c +308%

3.524 TFLOPS

Quadro K620M

0.863 TFLOPS

OctaneBench

Tesla K20c +205%

55

Quadro K620M

18

Tesla K20c

VS

Quadro K620M

Graphics Card

Nov 2012

Release Date

Mar 2015

Tesla

Generation

Quadro Mobile

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

1300 MHz

Memory Clock

900 MHz

Memory

5GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

320bit

Memory Bus

64bit

208.0GB/s

Bandwidth

14.40GB/s

Render Config

-

2496

Shading Units

384

208

TMUs

16

40

ROPs

8

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

1280 KB

L2 Cache

1024 KB

-

Theoretical Performance

36.71 GPixel/s

Pixel Rate

8.992 GPixel/s

146.8 GTexel/s

Texture Rate

17.98 GTexel/s

-

3.524 TFLOPS

FP32 (float)

863.2 GFLOPS

1175 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

225W

TDP

30W

550 W

Suggested PSU

-

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110

GPU Name

GM108

GK110-885-KA-A1

GPU Variant

N15M-Q3

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

Unknown

561 mm²

Die Size

Unknown

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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