AMD Radeon R5 M445 vs NVIDIA GeForce RTX 5080 Mobile

VS

AMD Radeon R5 M445

NVIDIA GeForce RTX 5080 Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon R5 M445 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 9 years late

Boost Clock2000MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (1.01TB/s vs 32.00GB/s)

7808 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M445

0.706 TFLOPS

GeForce RTX 5080 Mobile +4541%

32.77 TFLOPS

Radeon R5 M445

VS

GeForce RTX 5080 Mobile

Graphics Card

Jan 2016

Release Date

Jan 2025

Gem System

Generation

GeForce 50 Mobile

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 5.0 x16

Clock Speeds

-

Base Clock

1500 MHz

-

Boost Clock

2000 MHz

1000 MHz

Memory Clock

2500 MHz

Memory

4GB

Memory Size

16GB

GDDR5

Memory Type

GDDR7

64bit

Memory Bus

256bit

32.00GB/s

Bandwidth

1.01TB/s

Render Config

6

Compute Units

-

SM Count

64

384

Shading Units

8192

24

TMUs

256

8

ROPs

96

-

Tensor Cores

256

-

RT Cores

64

16 KB (per CU)

L1 Cache

128 KB (per SM)

128 KB

L2 Cache

64 MB

-

Theoretical Performance

7.360 GPixel/s

Pixel Rate

192.0 GPixel/s

22.08 GTexel/s

Texture Rate

512.0 GTexel/s

-

FP16 (half)

32.77 TFLOPS

706.6 GFLOPS

FP32 (float)

32.77 TFLOPS

-

FP64 (double)

512.0 GFLOPS

Board Design

Unknown

TDP

175W

-

Suggested PSU

550 W

Portable Device Dependent

Outputs

1x HDMI 2.13x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

Meso

GPU Name

GB203

Meso XT (216-0864018)

GPU Variant

-

GCN 3.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

4 nm

1.55 billion

Transistors

Unknown

125 mm²

Die Size

377 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

10.1

6.5

Shader Model

6.8

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