NVIDIA GeForce RTX 4080 Mobile vs AMD Radeon Pro 555X

VS

NVIDIA GeForce RTX 4080 Mobile AMD Radeon Pro 555X

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 Mobile and 4GB VRAM Radeon Pro 555X 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 4 years and 6 months late

Boost Clock1665MHz

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (432.0GB/s vs 94.08GB/s)

6656 additional rendering cores

AMD Radeon Pro 555X 's Advantages

Lower TDP (75W vs 110W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Mobile +1674%

24.72 TFLOPS

Radeon Pro 555X

1.393 TFLOPS

GeForce RTX 4080 Mobile

VS

Radeon Pro 555X

Graphics Card

Jan 2023

Release Date

Jul 2018

GeForce 40 Mobile

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1290 MHz

Base Clock

-

1665 MHz

Boost Clock

-

2250 MHz

Memory Clock

1470 MHz

Memory

12GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

432.0GB/s

Bandwidth

94.08GB/s

Render Config

58

SM Count

-

Compute Units

12

7424

Shading Units

768

232

TMUs

48

80

ROPs

16

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

48 MB

L2 Cache

1024 KB

Theoretical Performance

133.2 GPixel/s

Pixel Rate

14.51 GPixel/s

386.3 GTexel/s

Texture Rate

43.54 GTexel/s

24.72 TFLOPS

FP16 (half)

1393 GFLOPS

24.72 TFLOPS

FP32 (float)

1393 GFLOPS

386.3 GFLOPS

FP64 (double)

87.07 GFLOPS

Graphics Processor

AD104

GPU Name

Polaris 21

GN21-X9

GPU Variant

Polaris 21 PRO

Ada Lovelace

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

4 nm

Process Size

14 nm

35.8 billion

Transistors

3 billion

295 mm²

Die Size

123 mm²

Board Design

110W

TDP

75W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

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

8.9

CUDA

-

6.7

Shader Model

6.4

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