AMD Radeon Pro Vega 20 vs NVIDIA GeForce RTX 5090 Mobile

VS

AMD Radeon Pro Vega 20

NVIDIA GeForce RTX 5090 Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 16GB VRAM GeForce RTX 5090 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega 20 's Advantages

Lower TDP (100W vs 175W)

NVIDIA GeForce RTX 5090 Mobile 's Advantages

Released 6 years and 2 months late

Boost Clock has increased by 56% (2000MHz vs 1283MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (1.01TB/s vs 189.4GB/s)

9472 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20

3.284 TFLOPS

GeForce RTX 5090 Mobile +1209%

43.01 TFLOPS

Radeon Pro Vega 20

VS

GeForce RTX 5090 Mobile

Graphics Card

Nov 2018

Release Date

Jan 2025

Radeon Pro Mac

Generation

GeForce 50 Mobile

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

815 MHz

Base Clock

1500 MHz

1283 MHz

Boost Clock

2000 MHz

740 MHz

Memory Clock

2500 MHz

Memory

4GB

Memory Size

16GB

HBM2

Memory Type

GDDR7

1024bit

Memory Bus

256bit

189.4GB/s

Bandwidth

1.01TB/s

Render Config

20

Compute Units

-

SM Count

84

1280

Shading Units

10752

80

TMUs

336

32

ROPs

128

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

64 MB

-

Theoretical Performance

41.06 GPixel/s

Pixel Rate

256.0 GPixel/s

102.6 GTexel/s

Texture Rate

672.0 GTexel/s

6.569 TFLOPS

FP16 (half)

43.01 TFLOPS

3.284 TFLOPS

FP32 (float)

43.01 TFLOPS

205.3 GFLOPS

FP64 (double)

672.0 GFLOPS

Board Design

100W

TDP

175W

-

Suggested PSU

550 W

No outputs

Outputs

1x HDMI 2.13x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

Vega 12

GPU Name

GB203

Vega 12 XTA

GPU Variant

-

GCN 5.0

Architecture

Blackwell 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

4 nm

Unknown

Transistors

Unknown

Die Size

377 mm²

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

10.1

6.3

Shader Model

6.8

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