NVIDIA Tesla K20m vs NVIDIA Tesla P4

VS

NVIDIA Tesla K20m NVIDIA Tesla P4

We compared two Professional market GPUs: 5GB VRAM Tesla K20m and 8GB VRAM Tesla P4 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20m 's Advantages

Larger VRAM bandwidth (208.0GB/s vs 192.3GB/s)

NVIDIA Tesla P4 's Advantages

Released 3 years and 8 months late

Boost Clock1114MHz

More VRAM (8GB vs 5GB)

64 additional rendering cores

Lower TDP (75W vs 225W)

Score

Benchmark

FP32 (float)

Tesla K20m

3.524 TFLOPS

Tesla P4 +61%

5.704 TFLOPS

Tesla K20m

VS

Tesla P4

Graphics Card

Jan 2013

Release Date

Sep 2016

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

886 MHz

-

Boost Clock

1114 MHz

1300 MHz

Memory Clock

1502 MHz

Memory

5GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

320bit

Memory Bus

256bit

208.0GB/s

Bandwidth

192.3GB/s

Render Config

-

SM Count

20

-

Compute Units

-

2496

Shading Units

2560

208

TMUs

160

40

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

1280 KB

L2 Cache

2 MB

Theoretical Performance

36.71 GPixel/s

Pixel Rate

71.30 GPixel/s

146.8 GTexel/s

Texture Rate

178.2 GTexel/s

-

FP16 (half)

89.12 GFLOPS

3.524 TFLOPS

FP32 (float)

5.704 TFLOPS

1175 GFLOPS

FP64 (double)

178.2 GFLOPS

Graphics Processor

GK110

GPU Name

GP104

-

GPU Variant

GP104-895-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

Board Design

225W

TDP

75W

550 W

Suggested PSU

250 W

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

None

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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