NVIDIA GeForce RTX 4080 Max-Q vs AMD Radeon RX 6800S

VS

NVIDIA GeForce RTX 4080 Max-Q

AMD Radeon RX 6800S

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 Max Q and 8GB VRAM Radeon RX 6800S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

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 100W)

AMD Radeon RX 6800S 's Advantages

Boost Clock has increased by 56% (2100MHz vs 1350MHz)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Max Q +132%

20.04 TFLOPS

Radeon RX 6800S

8.602 TFLOPS

GeForce RTX 4080 Max Q

VS

Radeon RX 6800S

Graphics Card

Jan 2023

Release Date

Jan 2022

GeForce 40 Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

795 MHz

Base Clock

1800 MHz

1350 MHz

Boost Clock

2100 MHz

1750 MHz

Memory Clock

2000 MHz

Memory

12GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

192bit

Memory Bus

128bit

336.0GB/s

Bandwidth

256.0GB/s

Render Config

-

Compute Units

32

58

SM Count

-

7424

Shading Units

2048

232

TMUs

128

80

ROPs

64

232

Tensor Cores

-

58

RT Cores

32

128 KB (per SM)

L1 Cache

128 KB per Array

48 MB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

108.0 GPixel/s

Pixel Rate

134.4 GPixel/s

313.2 GTexel/s

Texture Rate

268.8 GTexel/s

20.04 TFLOPS

FP16 (half)

17.20 TFLOPS

20.04 TFLOPS

FP32 (float)

8.602 TFLOPS

313.2 GFLOPS

FP64 (double)

537.6 GFLOPS

Board Design

60W

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

AD104

GPU Name

Navi 23

GN21-X9

GPU Variant

-

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

4 nm

Process Size

7 nm

35.8 billion

Transistors

11.06 billion

295 mm²

Die Size

237 mm²

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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