NVIDIA GeForce RTX 4080 Mobile vs AMD Radeon R5 A255

VS

NVIDIA GeForce RTX 4080 Mobile AMD Radeon R5 A255

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 Mobile and 1024MB VRAM Radeon R5 A255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 Mobile 's Advantages

Released 9 years late

Boost Clock has increased by 77% (1665MHz vs 940MHz)

More VRAM (12GB vs 1GB)

Larger VRAM bandwidth (432.0GB/s vs 64.00GB/s)

7040 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Mobile +3328%

24.72 TFLOPS

Radeon R5 A255

0.721 TFLOPS

GeForce RTX 4080 Mobile

VS

Radeon R5 A255

Graphics Card

Jan 2023

Release Date

Jan 2014

GeForce 40 Mobile

Generation

All-In-One

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1290 MHz

Base Clock

925 MHz

1665 MHz

Boost Clock

940 MHz

2250 MHz

Memory Clock

1000 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

432.0GB/s

Bandwidth

64.00GB/s

Render Config

58

SM Count

-

Compute Units

6

7424

Shading Units

384

232

TMUs

24

80

ROPs

8

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

48 MB

L2 Cache

256 KB

Theoretical Performance

133.2 GPixel/s

Pixel Rate

7.520 GPixel/s

386.3 GTexel/s

Texture Rate

22.56 GTexel/s

24.72 TFLOPS

FP16 (half)

-

24.72 TFLOPS

FP32 (float)

721.9 GFLOPS

386.3 GFLOPS

FP64 (double)

-

Graphics Processor

AD104

GPU Name

Topaz

GN21-X9

GPU Variant

Topaz PRO (216-0858030)

Ada Lovelace

Architecture

GCN 3.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

35.8 billion

Transistors

1.55 billion

295 mm²

Die Size

125 mm²

Board Design

110W

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

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

8.9

CUDA

-

6.7

Shader Model

6.5

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