AMD Radeon RX 6800M vs NVIDIA GeForce RTX 4090 Mobile

VS

AMD Radeon RX 6800M

NVIDIA GeForce RTX 4090 Mobile

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M 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 6800M 's Advantages

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

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 (80W vs 145W)

Score

Benchmark

FP32 (float)

Radeon RX 6800M

12.24 TFLOPS

GeForce RTX 4090 Mobile +169%

32.98 TFLOPS

3DMark Time Spy

Radeon RX 6800M

11245

GeForce RTX 4090 Mobile +91%

21586

Blender

Radeon RX 6800M

1568

GeForce RTX 4090 Mobile +390%

7692

GTA 5 2160p

Radeon RX 6800M

84

GeForce RTX 4090 Mobile +102%

170

GTA 5 1440p

Radeon RX 6800M

84

GeForce RTX 4090 Mobile +102%

170

GTA 5 1080p

Radeon RX 6800M

140

GeForce RTX 4090 Mobile +28%

180

Radeon RX 6800M

VS

GeForce RTX 4090 Mobile

Graphics Card

May 2021

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

2116 MHz

Base Clock

1335 MHz

2390 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

40

Compute Units

-

SM Count

76

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

96 MB

L3 Cache

-

Theoretical Performance

153.0 GPixel/s

Pixel Rate

189.8 GPixel/s

382.4 GTexel/s

Texture Rate

515.3 GTexel/s

24.47 TFLOPS

FP16 (half)

32.98 TFLOPS

12.24 TFLOPS

FP32 (float)

32.98 TFLOPS

764.8 GFLOPS

FP64 (double)

515.3 GFLOPS

Board Design

145W

TDP

80-150W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

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

5 nm

17.2 billion

Transistors

45.9 billion

335 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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