NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon RX 6800S
GPU · Specs Compare
Graphics Card
Release Date
Jan 2023
Jan 2022
Generation
GeForce 40 Mobile
Mobility Radeon
Type
Mobile
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1335 MHz
1800 MHz
Boost Clock
1695 MHz
2100 MHz
Memory Clock
2250 MHz
2000 MHz
Memory
Memory Size
16GB
8GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
128bit
Bandwidth
576.0GB/s
256.0GB/s
Render Config
SM Count
76
—
Shading Units
9728
2048
TMUs
304
128
ROPs
112
64
Tensor Cores
304
—
RT Cores
76
32
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
64 MB
2 MB
Compute Units
—
32
L3 Cache
—
32 MB
Theoretical Performance
Pixel Rate
189.8 GPixel/s
134.4 GPixel/s
Texture Rate
515.3 GTexel/s
268.8 GTexel/s
FP16 (half)
32.98 TFLOPS
17.20 TFLOPS
FP32 (float)
32.98 TFLOPS
8.602 TFLOPS
FP64 (double)
515.3 GFLOPS
537.6 GFLOPS
Graphics Processor
GPU Name
AD103
Navi 23
GPU Variant
GN21-X11
—
Architecture
Ada Lovelace
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
45.9 billion
11.06 billion
Die Size
379 mm²
237 mm²
Board Design
TDP
120W
100W
Outputs
Portable Device Dependent
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.3
1.3
CUDA
8.9
—
Shader Model
6.8
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.