AMD Radeon RX 6650M XT vs NVIDIA GeForce RTX 4090 Mobile

VS

AMD Radeon RX 6650M XT

NVIDIA GeForce RTX 4090 Mobile

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6650M XT and 16GB VRAM GeForce RTX 4090 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6650M XT 's Advantages

Boost Clock has increased by 43% (2416MHz vs 1695MHz)

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 1 years late

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (576.0GB/s vs 256.0GB/s)

7680 additional rendering cores

Lower TDP (80W vs 120W)

Score

Benchmark

FP32 (float)

Radeon RX 6650M XT

9.896 TFLOPS

GeForce RTX 4090 Mobile +233%

32.98 TFLOPS

Radeon RX 6650M XT

VS

GeForce RTX 4090 Mobile

Graphics Card

Jan 2022

Release Date

Jan 2023

Mobility Radeon

Generation

GeForce 40 Mobile

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

2068 MHz

Base Clock

1335 MHz

2416 MHz

Boost Clock

1695 MHz

2000 MHz

Memory Clock

2250 MHz

Memory

8GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

256bit

256.0GB/s

Bandwidth

576.0GB/s

Render Config

32

Compute Units

-

SM Count

76

2048

Shading Units

9728

128

TMUs

304

64

ROPs

112

-

Tensor Cores

304

32

RT Cores

76

128 KB per Array

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

64 MB

32 MB

L3 Cache

-

Theoretical Performance

154.6 GPixel/s

Pixel Rate

189.8 GPixel/s

309.2 GTexel/s

Texture Rate

515.3 GTexel/s

19.79 TFLOPS

FP16 (half)

32.98 TFLOPS

9.896 TFLOPS

FP32 (float)

32.98 TFLOPS

618.5 GFLOPS

FP64 (double)

515.3 GFLOPS

Board Design

120W

TDP

80-150W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

AD103

-

GPU Variant

GN21-X11

RDNA 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

11.06 billion

Transistors

45.9 billion

237 mm²

Die Size

379 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.9

6.5

Shader Model

6.8

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