NVIDIA Tesla K20Xm vs NVIDIA RTX A4500

VS

NVIDIA Tesla K20Xm

NVIDIA RTX A4500

We compared two Professional market GPUs: 6GB VRAM Tesla K20Xm and 20GB VRAM RTX A4500 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4500 's Advantages

Released 9 years late

Boost Clock1650MHz

More VRAM (20GB vs 6GB)

Larger VRAM bandwidth (640.0GB/s vs 249.6GB/s)

4480 additional rendering cores

Lower TDP (200W vs 235W)

Score

Benchmark

FP32 (float)

Tesla K20Xm

3.935 TFLOPS

RTX A4500 +501%

23.65 TFLOPS

Tesla K20Xm

VS

RTX A4500

Graphics Card

Nov 2012

Release Date

Nov 2021

Tesla

Generation

Quadro Ampere

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1050 MHz

-

Boost Clock

1650 MHz

1300 MHz

Memory Clock

2000 MHz

Memory

6GB

Memory Size

20GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

320bit

249.6GB/s

Bandwidth

640.0GB/s

Render Config

-

SM Count

56

2688

Shading Units

7168

224

TMUs

224

48

ROPs

96

-

Tensor Cores

224

-

RT Cores

56

16 KB (per SMX)

L1 Cache

128 KB (per SM)

1536 KB

L2 Cache

6 MB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

158.4 GPixel/s

164.0 GTexel/s

Texture Rate

369.6 GTexel/s

-

FP16 (half)

23.65 TFLOPS

3.935 TFLOPS

FP32 (float)

23.65 TFLOPS

1312 GFLOPS

FP64 (double)

369.6 GFLOPS

Board Design

235W

TDP

200W

550 W

Suggested PSU

550 W

No outputs

Outputs

4x DisplayPort 1.4a

-

Power Connectors

1x 8-pin

Graphics Processor

GK110

GPU Name

GA102

-

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

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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