NVIDIA Tesla D870 vs NVIDIA Tesla K40c

VS

NVIDIA Tesla D870

NVIDIA Tesla K40c

We compared two Professional market GPUs: 1536MB VRAM Tesla D870 and 12GB VRAM Tesla K40c to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K40c 's Advantages

Released 6 years and 5 months late

Boost Clock876MHz

More VRAM (12GB vs 1536GB)

Larger VRAM bandwidth (288.4GB/s vs 76.80GB/s)

2752 additional rendering cores

Lower TDP (245W vs 520W)

Score

Benchmark

FP32 (float)

Tesla D870

0.346 TFLOPS

Tesla K40c +1358%

5.046 TFLOPS

Tesla D870

VS

Tesla K40c

Graphics Card

May 2007

Release Date

Oct 2013

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

745 MHz

-

Boost Clock

876 MHz

800 MHz

Memory Clock

1502 MHz

Memory

1536MB

Memory Size

12GB

GDDR3

Memory Type

GDDR5

384bit

Memory Bus

384bit

76.80GB/s

Bandwidth

288.4GB/s

Render Config

-

16

SM Count

-

128

Shading Units

2880

32

TMUs

240

24

ROPs

48

-

L1 Cache

16 KB (per SMX)

96 KB

L2 Cache

1536 KB

-

Theoretical Performance

14.40 GPixel/s

Pixel Rate

52.56 GPixel/s

38.40 GTexel/s

Texture Rate

210.2 GTexel/s

-

345.6 GFLOPS

FP32 (float)

5.046 TFLOPS

-

FP64 (double)

1.682 TFLOPS

Board Design

520W

TDP

245W

900 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

G80

GPU Name

GK180

-

GPU Variant

GK180-890-A1

Tesla

Architecture

Kepler

TSMC

Foundry

TSMC

90 nm

Process Size

28 nm

0.681 billion

Transistors

7.08 billion

484 mm²

Die Size

561 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1 (1.0)

OpenCL

3.0

N/A

Vulkan

1.1

1.0

CUDA

3.5

4.0

Shader Model

5.1

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