AMD Radeon RX 6850M XT vs NVIDIA GeForce RTX 4090 Mobile

VS

AMD Radeon RX 6850M XT NVIDIA GeForce RTX 4090 Mobile

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6850M 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 6850M XT 's Advantages

Boost Clock has increased by 52% (2581MHz vs 1695MHz)

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 1 years late

More VRAM (16GB vs 12GB)

Larger VRAM bandwidth (576.0GB/s vs 384.0GB/s)

7168 additional rendering cores

Lower TDP (120W vs 165W)

Score

Benchmark

FP32 (float)

Radeon RX 6850M XT

13.21 TFLOPS

GeForce RTX 4090 Mobile +149%

32.98 TFLOPS

Blender

Radeon RX 6850M XT

1528

GeForce RTX 4090 Mobile +412%

7828

Radeon RX 6850M 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 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2321 MHz

Base Clock

1335 MHz

2581 MHz

Boost Clock

1695 MHz

2000 MHz

Memory Clock

2250 MHz

Memory

12GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

192bit

Memory Bus

256bit

384.0GB/s

Bandwidth

576.0GB/s

Render Config

-

SM Count

76

40

Compute Units

-

2560

Shading Units

9728

160

TMUs

304

64

ROPs

112

-

Tensor Cores

304

40

RT Cores

76

128 KB per Array

L1 Cache

128 KB (per SM)

3 MB

L2 Cache

64 MB

Theoretical Performance

165.2 GPixel/s

Pixel Rate

189.8 GPixel/s

413.0 GTexel/s

Texture Rate

515.3 GTexel/s

26.43 TFLOPS

FP16 (half)

32.98 TFLOPS

13.21 TFLOPS

FP32 (float)

32.98 TFLOPS

825.9 GFLOPS

FP64 (double)

515.3 GFLOPS

Graphics Processor

Navi 22

GPU Name

AD103

Navi 22 XTM

GPU Variant

GN21-X11

RDNA 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

7 nm

Process Size

4 nm

17.2 billion

Transistors

45.9 billion

335 mm²

Die Size

379 mm²

Board Design

165W

TDP

120W

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

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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