NVIDIA Tesla K20c vs NVIDIA GRID K120Q

VS

NVIDIA Tesla K20c

NVIDIA GRID K120Q

We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 512MB VRAM GRID K120Q 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 512GB)

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

2304 additional rendering cores

NVIDIA GRID K120Q 's Advantages

Released 1 years and 8 months late

Lower TDP (130W vs 225W)

Score

Benchmark

FP32 (float)

Tesla K20c +980%

3.524 TFLOPS

GRID K120Q

0.326 TFLOPS

Tesla K20c

VS

GRID K120Q

Graphics Card

Nov 2012

Release Date

Jul 2014

Tesla

Generation

GRID

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1300 MHz

Memory Clock

891 MHz

Memory

5GB

Memory Size

512MB

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

36.71 GPixel/s

Pixel Rate

3.400 GPixel/s

146.8 GTexel/s

Texture Rate

13.60 GTexel/s

-

3.524 TFLOPS

FP32 (float)

326.4 GFLOPS

1175 GFLOPS

FP64 (double)

13.60 GFLOPS

Board Design

225W

TDP

130W

550 W

Suggested PSU

300 W

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

GK110

GPU Name

GK107

GK110-885-KA-A1

GPU Variant

-

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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