AMD Radeon R9 M485X vs NVIDIA GeForce RTX 5080 Mobile

VS

AMD Radeon R9 M485X

NVIDIA GeForce RTX 5080 Mobile

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M485X and 16GB VRAM GeForce RTX 5080 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 Mobile 's Advantages

Released 8 years and 8 months late

Boost Clock2000MHz

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (1.01TB/s vs 160.0GB/s)

6144 additional rendering cores

Lower TDP (175W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M485X

2.961 TFLOPS

GeForce RTX 5080 Mobile +1006%

32.77 TFLOPS

Radeon R9 M485X

VS

GeForce RTX 5080 Mobile

Graphics Card

May 2016

Release Date

Jan 2025

Crystal System

Generation

GeForce 50 Mobile

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 5.0 x16

Clock Speeds

-

Base Clock

1500 MHz

-

Boost Clock

2000 MHz

1250 MHz

Memory Clock

2500 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR7

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

1.01TB/s

Render Config

32

Compute Units

-

SM Count

64

2048

Shading Units

8192

128

TMUs

256

32

ROPs

96

-

Tensor Cores

256

-

RT Cores

64

16 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

64 MB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

192.0 GPixel/s

92.54 GTexel/s

Texture Rate

512.0 GTexel/s

2.961 TFLOPS

FP16 (half)

32.77 TFLOPS

2.961 TFLOPS

FP32 (float)

32.77 TFLOPS

185.1 GFLOPS

FP64 (double)

512.0 GFLOPS

Board Design

250W

TDP

175W

-

Suggested PSU

550 W

No outputs

Outputs

1x HDMI 2.13x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

GB203

Amethyst XT

GPU Variant

-

GCN 3.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

4 nm

5 billion

Transistors

Unknown

366 mm²

Die Size

377 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

10.1

6.3

Shader Model

6.8

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