NVIDIA GeForce RTX 3080 Mobile 16 GB vs AMD Radeon R9 M385X

VS

NVIDIA GeForce RTX 3080 Mobile 16 GB

AMD Radeon R9 M385X

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Mobile 16 GB and 4GB VRAM Radeon R9 M385X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 16 GB 's Advantages

Released 5 years and 8 months late

Boost Clock has increased by 40% (1545MHz vs 1100MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (448.0GB/s vs 76.80GB/s)

5248 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Mobile 16 GB +862%

18.98 TFLOPS

Radeon R9 M385X

1.971 TFLOPS

GeForce RTX 3080 Mobile 16 GB

VS

Radeon R9 M385X

Graphics Card

Jan 2021

Release Date

May 2015

GeForce 30 Mobile

Generation

Gem System

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1110 MHz

Base Clock

1000 MHz

1545 MHz

Boost Clock

1100 MHz

1750 MHz

Memory Clock

1200 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

76.80GB/s

Render Config

-

Compute Units

14

48

SM Count

-

6144

Shading Units

896

192

TMUs

56

96

ROPs

16

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

148.3 GPixel/s

Pixel Rate

17.60 GPixel/s

296.6 GTexel/s

Texture Rate

61.60 GTexel/s

18.98 TFLOPS

FP16 (half)

-

18.98 TFLOPS

FP32 (float)

1.971 TFLOPS

296.6 GFLOPS

FP64 (double)

123.2 GFLOPS

Board Design

115W

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

GA104

GPU Name

Strato

GA104-775-A1

GPU Variant

Strato XT

Ampere

Architecture

GCN 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

2.08 billion

392 mm²

Die Size

160 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2.170

8.6

CUDA

-

6.8

Shader Model

6.5

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