NVIDIA Tesla K20c vs NVIDIA Quadro CX

VS

We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 1536MB VRAM Quadro CX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20c 's Advantages

Released 4 years late

More VRAM (5GB vs 1GB)

Larger VRAM bandwidth (208.0GB/s vs 76.80GB/s)

2304 additional rendering cores

NVIDIA Quadro CX 's Advantages

Lower TDP (150W vs 225W)

Score

Benchmark

FP32 (float)

Tesla K20c +662%

3.524 TFLOPS

Quadro CX

0.462 TFLOPS

Tesla K20c

VS

Quadro CX

Graphics Card

Nov 2012

Release Date

Nov 2008

Tesla

Generation

Quadro CX

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1300 MHz

Memory Clock

800 MHz

Memory

5GB

Memory Size

1536MB

GDDR5

Memory Type

GDDR3

320bit

Memory Bus

384bit

208.0GB/s

Bandwidth

76.80GB/s

Render Config

-

SM Count

24

-

Compute Units

-

2496

Shading Units

192

208

TMUs

64

40

ROPs

24

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

1280 KB

L2 Cache

192 KB

Theoretical Performance

36.71 GPixel/s

Pixel Rate

14.45 GPixel/s

146.8 GTexel/s

Texture Rate

38.53 GTexel/s

-

FP16 (half)

-

3.524 TFLOPS

FP32 (float)

462.3 GFLOPS

1175 GFLOPS

FP64 (double)

57.79 GFLOPS

Graphics Processor

GK110

GPU Name

GT200B

GK110-885-KA-A1

GPU Variant

-

Kepler

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

7.08 billion

Transistors

1.4 billion

561 mm²

Die Size

470 mm²

Board Design

225W

TDP

150W

550 W

Suggested PSU

450 W

No outputs

Outputs

1x DVI 2x DisplayPort 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

1.3

5.1

Shader Model

4.0

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