AMD Radeon R9 M485X vs NVIDIA GeForce RTX 3080 Ti Mobile

VS

AMD Radeon R9 M485X

NVIDIA GeForce RTX 3080 Ti Mobile

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M485X and 16GB VRAM GeForce RTX 3080 Ti Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti Mobile 's Advantages

Released 5 years and 8 months late

Boost Clock1260MHz

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 160.0GB/s)

5376 additional rendering cores

Lower TDP (115W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M485X

2.961 TFLOPS

GeForce RTX 3080 Ti Mobile +531%

18.71 TFLOPS

Radeon R9 M485X

VS

GeForce RTX 3080 Ti Mobile

Graphics Card

May 2016

Release Date

Jan 2022

Crystal System

Generation

GeForce 30 Mobile

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

810 MHz

-

Boost Clock

1260 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

512.0GB/s

Render Config

32

Compute Units

-

SM Count

58

2048

Shading Units

7424

128

TMUs

232

32

ROPs

96

-

Tensor Cores

232

-

RT Cores

58

16 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

4 MB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

121.0 GPixel/s

92.54 GTexel/s

Texture Rate

292.3 GTexel/s

2.961 TFLOPS

FP16 (half)

18.71 TFLOPS

2.961 TFLOPS

FP32 (float)

18.71 TFLOPS

185.1 GFLOPS

FP64 (double)

292.3 GFLOPS

Board Design

250W

TDP

115W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

GA103S

Amethyst XT

GPU Variant

GN20-E8-A1

GCN 3.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

5 billion

Transistors

Unknown

366 mm²

Die Size

496 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

6.3

Shader Model

6.5

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