NVIDIA Tesla K20X vs NVIDIA Tesla P6

VS

NVIDIA Tesla K20X

NVIDIA Tesla P6

We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 16GB VRAM Tesla P6 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20X 's Advantages

Larger VRAM bandwidth (249.6GB/s vs 192.3GB/s)

640 additional rendering cores

NVIDIA Tesla P6 's Advantages

Released 4 years and 4 months late

Boost Clock1506MHz

More VRAM (16GB vs 6GB)

Lower TDP (90W vs 235W)

Score

Benchmark

FP32 (float)

Tesla K20X

3.935 TFLOPS

Tesla P6 +56%

6.169 TFLOPS

Tesla K20X

VS

Tesla P6

Graphics Card

Nov 2012

Release Date

Mar 2017

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

1012 MHz

-

Boost Clock

1506 MHz

1300 MHz

Memory Clock

1502 MHz

Memory

6GB

Memory Size

16GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

249.6GB/s

Bandwidth

192.3GB/s

Render Config

-

SM Count

16

2688

Shading Units

2048

224

TMUs

128

48

ROPs

64

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

1536 KB

L2 Cache

2 MB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

96.38 GPixel/s

164.0 GTexel/s

Texture Rate

192.8 GTexel/s

-

FP16 (half)

96.38 GFLOPS

3.935 TFLOPS

FP32 (float)

6.169 TFLOPS

1312 GFLOPS

FP64 (double)

192.8 GFLOPS

Board Design

235W

TDP

90W

550 W

Suggested PSU

250 W

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110

GPU Name

GP104

-

GPU Variant

GP104-995-A1

Kepler

Architecture

Pascal

TSMC

Foundry

TSMC

28 nm

Process Size

16 nm

7.08 billion

Transistors

7.2 billion

561 mm²

Die Size

314 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

6.1

5.1

Shader Model

6.4

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