GeForce RTX 4090 Mobile vs GeForce RTX 4080 Max Q
We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 12GB VRAM GeForce RTX 4080 Max Q to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4090 Mobile Advantages
Boost Clock has increased by 26% (1695MHz vs 1350MHz)
More VRAM (16GB vs 12GB)
Larger VRAM bandwidth (576.0GB/s vs 336.0GB/s)
2304 additional rendering cores
GeForce RTX 4080 Max Q Advantages
Lower TDP (60W vs 120W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090 Mobile
+64%
32980
GeForce RTX 4080 Max Q
20040
Graphics Card
Jan 2023
Release Date
Jan 2023
GeForce 40 Mobile
Generation
GeForce 40 Mobile
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
1335 MHz
Base Clock
795 MHz
1695 MHz
Boost Clock
1350 MHz
2250 MHz
Memory Clock
1750 MHz
Memory
16GB
Memory Size
12GB
GDDR6
Memory Type
GDDR6
256bit
Memory Bus
192bit
576.0GB/s
Bandwidth
336.0GB/s
Render Config
76
SM Count
58
9728
Shading Units
7424
304
TMUs
232
112
ROPs
80
304
Tensor Cores
232
76
RT Cores
58
128 KB (per SM)
L1 Cache
128 KB (per SM)
64 MB
L2 Cache
48 MB
Theoretical Performance
189.8 GPixel/s
Pixel Rate
108.0 GPixel/s
515.3 GTexel/s
Texture Rate
313.2 GTexel/s
32.98 TFLOPS
FP16 (half)
20.04 TFLOPS
32.98 TFLOPS
FP32 (float)
20.04 TFLOPS
515.3 GFLOPS
FP64 (double)
313.2 GFLOPS
Board Design
120W
TDP
60W
Portable Device Dependent
Outputs
Portable Device Dependent
None
Power Connectors
None
Graphics Processor
AD103
GPU Name
AD104
GN21-X11
GPU Variant
GN21-X9
Ada Lovelace
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
5 nm
Process Size
4 nm
45.9 billion
Transistors
35.8 billion
379 mm²
Die Size
295 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.9
CUDA
8.9
6.8
Shader Model
6.7
