NVIDIA Tesla K20Xm vs NVIDIA Tesla P4

VS

We compared two Professional market GPUs: 6GB VRAM Tesla K20Xm and 8GB VRAM Tesla P4 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20Xm 's Advantages

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

128 additional rendering cores

NVIDIA Tesla P4 's Advantages

Released 3 years and 10 months late

Boost Clock1114MHz

More VRAM (8GB vs 6GB)

Lower TDP (75W vs 235W)

Score

Benchmark

FP32 (float)

Tesla K20Xm

3.935 TFLOPS

Tesla P4 +44%

5.704 TFLOPS

Blender

Tesla K20Xm

372

Tesla P4 +8%

405

OctaneBench

Tesla K20Xm

63

Tesla P4 +41%

89

Tesla K20Xm

VS

Tesla P4

Graphics Card

Nov 2012

Release Date

Sep 2016

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

886 MHz

-

Boost Clock

1114 MHz

1300 MHz

Memory Clock

1502 MHz

Memory

6GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

249.6GB/s

Bandwidth

192.3GB/s

Render Config

-

SM Count

20

-

Compute Units

-

2688

Shading Units

2560

224

TMUs

160

48

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

1536 KB

L2 Cache

2 MB

Theoretical Performance

40.99 GPixel/s

Pixel Rate

71.30 GPixel/s

164.0 GTexel/s

Texture Rate

178.2 GTexel/s

-

FP16 (half)

89.12 GFLOPS

3.935 TFLOPS

FP32 (float)

5.704 TFLOPS

1312 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

235W

TDP

75W

550 W

Suggested PSU

250 W

No outputs

Outputs

No outputs

-

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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