NVIDIA A800 PCIe 80 GB vs NVIDIA Tesla K20X

VS

NVIDIA A800 PCIe 80 GB NVIDIA Tesla K20X

AI GPU We compared a GPU: 80GB VRAM A800 PCIe 80 GB and a Professional market GPU: 6GB VRAM Tesla K20X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A800 PCIe 80 GB 's Advantages

Released 10 years late

Boost Clock1410MHz

More VRAM (80GB vs 6GB)

Larger VRAM bandwidth (2039GB/s vs 249.6GB/s)

4224 additional rendering cores

NVIDIA Tesla K20X 's Advantages

Lower TDP (235W vs 250W)

Score

Benchmark

FP32 (float)

A800 PCIe 80 GB +395%

19.49 TFLOPS

Tesla K20X

3.935 TFLOPS

A800 PCIe 80 GB

VS

Tesla K20X

Graphics Card

Nov 2022

Release Date

Nov 2012

Ampere

Generation

Tesla

AI GPU

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1065 MHz

Base Clock

-

1410 MHz

Boost Clock

-

1593 MHz

Memory Clock

1300 MHz

Memory

80GB

Memory Size

6GB

HBM2e

Memory Type

GDDR5

5120bit

Memory Bus

384bit

2039GB/s

Bandwidth

249.6GB/s

Render Config

108

SM Count

-

Compute Units

-

6912

Shading Units

2688

432

TMUs

224

160

ROPs

48

432

Tensor Cores

-

RT Cores

-

192 KB (per SM)

L1 Cache

16 KB (per SMX)

80 MB

L2 Cache

1536 KB

Theoretical Performance

225.6 GPixel/s

Pixel Rate

40.99 GPixel/s

609.1 GTexel/s

Texture Rate

164.0 GTexel/s

77.97 TFLOPS

FP16 (half)

-

19.49 TFLOPS

FP32 (float)

3.935 TFLOPS

9.746 TFLOPS

FP64 (double)

1312 GFLOPS

Graphics Processor

GA100

GPU Name

GK110

-

GPU Variant

-

Ampere

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

54.2 billion

Transistors

7.08 billion

826 mm²

Die Size

561 mm²

Board Design

250W

TDP

235W

600 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

N/A

DirectX

12 (11_0)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.1

8.0

CUDA

3.5

N/A

Shader Model

5.1

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