NVIDIA Tesla K20c vs NVIDIA RTX A5000

VS

We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 24GB VRAM RTX A5000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20c 's Advantages

Lower TDP (225W vs 230W)

NVIDIA RTX A5000 's Advantages

Released 8 years and 5 months late

Boost Clock1695MHz

More VRAM (24GB vs 5GB)

Larger VRAM bandwidth (768.0GB/s vs 208.0GB/s)

5696 additional rendering cores

Score

Benchmark

FP32 (float)

Tesla K20c

3.524 TFLOPS

RTX A5000 +688%

27.77 TFLOPS

OctaneBench

Tesla K20c

55

RTX A5000 +940%

572

Tesla K20c

VS

RTX A5000

Graphics Card

Nov 2012

Release Date

Apr 2021

Tesla

Generation

Quadro Ampere

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1170 MHz

-

Boost Clock

1695 MHz

1300 MHz

Memory Clock

2000 MHz

Memory

5GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

320bit

Memory Bus

384bit

208.0GB/s

Bandwidth

768.0GB/s

Render Config

-

SM Count

64

-

Compute Units

-

2496

Shading Units

8192

208

TMUs

256

40

ROPs

96

-

Tensor Cores

256

-

RT Cores

64

16 KB (per SMX)

L1 Cache

128 KB (per SM)

1280 KB

L2 Cache

6 MB

Theoretical Performance

36.71 GPixel/s

Pixel Rate

162.7 GPixel/s

146.8 GTexel/s

Texture Rate

433.9 GTexel/s

-

FP16 (half)

27.77 TFLOPS

3.524 TFLOPS

FP32 (float)

27.77 TFLOPS

1175 GFLOPS

FP64 (double)

433.9 GFLOPS

Graphics Processor

GK110

GPU Name

GA102

GK110-885-KA-A1

GPU Variant

-

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

7.08 billion

Transistors

28.3 billion

561 mm²

Die Size

628 mm²

Board Design

225W

TDP

230W

550 W

Suggested PSU

550 W

No outputs

Outputs

4x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

8.6

5.1

Shader Model

6.7

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