NVIDIA Tesla K40c vs NVIDIA Tesla K80

VS

NVIDIA Tesla K40c

NVIDIA Tesla K80

We compared two Professional market GPUs: 12GB VRAM Tesla K40c and 12GB VRAM Tesla K80 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K40c 's Advantages

Boost Clock has increased by 6% (876MHz vs 824MHz)

Larger VRAM bandwidth (288.4GB/s vs 240.6GB/s)

384 additional rendering cores

Lower TDP (245W vs 300W)

NVIDIA Tesla K80 's Advantages

Released 1 years and 1 months late

Score

Benchmark

FP32 (float)

Tesla K40c +22%

5.046 TFLOPS

Tesla K80

4.113 TFLOPS

Tesla K40c

VS

Tesla K80

Graphics Card

Oct 2013

Release Date

Nov 2014

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

745 MHz

Base Clock

562 MHz

876 MHz

Boost Clock

824 MHz

1502 MHz

Memory Clock

1253 MHz

Memory

12GB

Memory Size

12GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

288.4GB/s

Bandwidth

240.6GB/s

Render Config

-

2880

Shading Units

2496

240

TMUs

208

48

ROPs

48

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

1536 KB

L2 Cache

1536 KB

-

Theoretical Performance

52.56 GPixel/s

Pixel Rate

42.85 GPixel/s

210.2 GTexel/s

Texture Rate

171.4 GTexel/s

-

5.046 TFLOPS

FP32 (float)

4.113 TFLOPS

1.682 TFLOPS

FP64 (double)

1371 GFLOPS

Board Design

245W

TDP

300W

550 W

Suggested PSU

700 W

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

GK180

GPU Name

GK210

GK180-890-A1

GPU Variant

GK210-885-A1

Kepler

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

7.1 billion

561 mm²

Die Size

561 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.5

CUDA

3.7

5.1

Shader Model

5.1

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