AMD Radeon RX 6650M XT vs NVIDIA GeForce RTX 4080 Max-Q

VS

AMD Radeon RX 6650M XT

NVIDIA GeForce RTX 4080 Max-Q

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6650M XT and 12GB VRAM GeForce RTX 4080 Max Q 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 79% (2416MHz vs 1350MHz)

NVIDIA GeForce RTX 4080 Max-Q 's Advantages

Released 1 years late

More VRAM (12GB vs 8GB)

Larger VRAM bandwidth (336.0GB/s vs 256.0GB/s)

5376 additional rendering cores

Lower TDP (60W vs 120W)

Score

Benchmark

FP32 (float)

Radeon RX 6650M XT

9.896 TFLOPS

GeForce RTX 4080 Max Q +102%

20.04 TFLOPS

Radeon RX 6650M XT

VS

GeForce RTX 4080 Max Q

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

795 MHz

2416 MHz

Boost Clock

1350 MHz

2000 MHz

Memory Clock

1750 MHz

Memory

8GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

192bit

256.0GB/s

Bandwidth

336.0GB/s

Render Config

32

Compute Units

-

SM Count

58

2048

Shading Units

7424

128

TMUs

232

64

ROPs

80

-

Tensor Cores

232

32

RT Cores

58

128 KB per Array

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

48 MB

32 MB

L3 Cache

-

Theoretical Performance

154.6 GPixel/s

Pixel Rate

108.0 GPixel/s

309.2 GTexel/s

Texture Rate

313.2 GTexel/s

19.79 TFLOPS

FP16 (half)

20.04 TFLOPS

9.896 TFLOPS

FP32 (float)

20.04 TFLOPS

618.5 GFLOPS

FP64 (double)

313.2 GFLOPS

Board Design

120W

TDP

60W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

AD104

-

GPU Variant

GN21-X9

RDNA 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

7 nm

Process Size

4 nm

11.06 billion

Transistors

35.8 billion

237 mm²

Die Size

295 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

6.7

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