NVIDIA GRID A100B vs NVIDIA RTX A4000 Mobile

VS

NVIDIA GRID A100B

NVIDIA RTX A4000 Mobile

We compared two Professional market GPUs: 48GB VRAM GRID A100B and 8GB VRAM RTX A4000 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GRID A100B 's Advantages

More VRAM (48GB vs 8GB)

Larger VRAM bandwidth (1866GB/s vs 384.0GB/s)

1792 additional rendering cores

NVIDIA RTX A4000 Mobile 's Advantages

Released 11 months late

Boost Clock has increased by 67% (1680MHz vs 1005MHz)

Lower TDP (115W vs 400W)

Score

Benchmark

FP32 (float)

GRID A100B

13.89 TFLOPS

RTX A4000 Mobile +23%

17.2 TFLOPS

GRID A100B

VS

RTX A4000 Mobile

Graphics Card

May 2020

Release Date

Apr 2021

GRID

Generation

Quadro Ampere-M

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

900 MHz

Base Clock

1140 MHz

1005 MHz

Boost Clock

1680 MHz

1215 MHz

Memory Clock

1500 MHz

Memory

48GB

Memory Size

8GB

HBM2e

Memory Type

GDDR6

6144bit

Memory Bus

256bit

1866GB/s

Bandwidth

384.0GB/s

Render Config

-

108

SM Count

40

6912

Shading Units

5120

432

TMUs

160

192

ROPs

80

432

Tensor Cores

160

-

RT Cores

40

192 KB (per SM)

L1 Cache

128 KB (per SM)

48 MB

L2 Cache

4 MB

-

Theoretical Performance

193.0 GPixel/s

Pixel Rate

134.4 GPixel/s

434.2 GTexel/s

Texture Rate

268.8 GTexel/s

55.57 TFLOPS

FP16 (half)

17.20 TFLOPS

13.89 TFLOPS

FP32 (float)

17.20 TFLOPS

6.947 TFLOPS

FP64 (double)

268.8 GFLOPS

Board Design

400W

TDP

115W

800 W

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

GA100

GPU Name

GA104

-

Ampere

Architecture

Ampere

TSMC

Foundry

Samsung

7 nm

Process Size

8 nm

54.2 billion

Transistors

17.4 billion

826 mm²

Die Size

392 mm²

Graphics Features

N/A

DirectX

12 Ultimate (12_2)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.3

8.0

CUDA

8.6

N/A

Shader Model

6.7

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