NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon RX 6800M

VS

NVIDIA GeForce RTX 4090 Mobile AMD Radeon RX 6800M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 12GB VRAM Radeon RX 6800M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 1 years and 8 months late

More VRAM (16GB vs 12GB)

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

7168 additional rendering cores

Lower TDP (120W vs 145W)

AMD Radeon RX 6800M 's Advantages

Boost Clock has increased by 41% (2390MHz vs 1695MHz)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +169%

32.98 TFLOPS

Radeon RX 6800M

12.24 TFLOPS

3DMark Time Spy

GeForce RTX 4090 Mobile +92%

21684

Radeon RX 6800M

11264

Blender

GeForce RTX 4090 Mobile +431%

7828

Radeon RX 6800M

1472

GTA 5 2160p

GeForce RTX 4090 Mobile +102%

170

Radeon RX 6800M

84

GTA 5 1440p

GeForce RTX 4090 Mobile +102%

170

Radeon RX 6800M

84

GTA 5 1080p

GeForce RTX 4090 Mobile +28%

180

Radeon RX 6800M

140

GeForce RTX 4090 Mobile

VS

Radeon RX 6800M

Graphics Card

Jan 2023

Release Date

May 2021

GeForce 40 Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1335 MHz

Base Clock

2116 MHz

1695 MHz

Boost Clock

2390 MHz

2250 MHz

Memory Clock

2000 MHz

Memory

16GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

384.0GB/s

Render Config

76

SM Count

-

Compute Units

40

9728

Shading Units

2560

304

TMUs

160

112

ROPs

64

304

Tensor Cores

-

76

RT Cores

40

128 KB (per SM)

L1 Cache

128 KB per Array

64 MB

L2 Cache

3 MB

Theoretical Performance

189.8 GPixel/s

Pixel Rate

153.0 GPixel/s

515.3 GTexel/s

Texture Rate

382.4 GTexel/s

32.98 TFLOPS

FP16 (half)

24.47 TFLOPS

32.98 TFLOPS

FP32 (float)

12.24 TFLOPS

515.3 GFLOPS

FP64 (double)

764.8 GFLOPS

Graphics Processor

AD103

GPU Name

Navi 22

GN21-X11

GPU Variant

Navi 22 XTM

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

4 nm

Process Size

7 nm

45.9 billion

Transistors

17.2 billion

379 mm²

Die Size

335 mm²

Board Design

120W

TDP

145W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.9

CUDA

-

6.7

Shader Model

6.5

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