Tesla K40c and R423 - video card comparison

Tesla K40c

R423

Architecture

Kepler (2012−2018)

R400 (2004−2008)

GPU code name

GK180

R423

Market segment

Workstation

Desktop

Release date

October 2013

-

Interface

PCIe 3.0 x16

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Supplementary power connectors

1x 6-pin + 1x 8-pin

-

Boost clock speed

876 MHz

-

Core clock speed

745 MHz

-

Floating-point performance

4,291 gflops

-

Manufacturing process technology

28 nm

130 nm

Number of transistors

7,080 million

160 million

Pipelines / CUDA cores

2880

-

Power consumption (TDP)

245 Watt

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Texture fill rate

210.2

-

Memory type

GDDR5

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Maximum RAM amount

12 GB

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Memory bus width

384 Bit

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Memory clock speed

6008 MHz

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Memory bandwidth

288.4 GB/s

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Display Connectors

No outputs

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DirectX

12 (11_0)

9.0b (9_2)

CUDA

3.5

-

OpenCL

1.2

N/A

OpenGL

4.6

2.1

Shader Model

5.1

-

Vulkan

1.1.103

N/A