NVIDIA Quadro K420 vs NVIDIA Tesla C870

VS

NVIDIA Quadro K420

NVIDIA Tesla C870

We compared two Professional market GPUs: 1024MB VRAM Quadro K420 and 1536MB VRAM Tesla C870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro K420 's Advantages

Released 7 years and 2 months late

64 additional rendering cores

Lower TDP (41W vs 171W)

NVIDIA Tesla C870 's Advantages

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (76.80GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

Quadro K420

0.336 TFLOPS

Tesla C870 +2%

0.346 TFLOPS

Quadro K420

VS

Tesla C870

Graphics Card

Jul 2014

Release Date

May 2007

Quadro

Generation

Tesla

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

891 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1536MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

384bit

28.51GB/s

Bandwidth

76.80GB/s

Render Config

-

SM Count

16

192

Shading Units

128

16

TMUs

32

16

ROPs

24

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

96 KB

-

Theoretical Performance

3.504 GPixel/s

Pixel Rate

14.40 GPixel/s

14.02 GTexel/s

Texture Rate

38.40 GTexel/s

-

336.4 GFLOPS

FP32 (float)

345.6 GFLOPS

14.02 GFLOPS

FP64 (double)

-

Board Design

41W

TDP

171W

200 W

Suggested PSU

450 W

1x DVI 1x DisplayPort 1.2

Outputs

No outputs

None

Power Connectors

2x 6-pin

Graphics Processor

GK107

GPU Name

G80

GK107-301-A2

GPU Variant

-

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

1.27 billion

Transistors

0.681 billion

118 mm²

Die Size

484 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1 (1.0)

1.1

Vulkan

N/A

3.0

CUDA

1.0

5.1

Shader Model

4.0

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