NVIDIA GeForce RTX 5090 Mobile vs NVIDIA GeForce RTX 4090 Max-Q
We compared two Mobile platform GPUs: 24GB VRAM GeForce RTX 5090 Mobile and 16GB VRAM GeForce RTX 4090 Max Q to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 5090 Mobile 's Advantages
Released 2 years and 2 months late
Boost Clock has increased by 4% (1515MHz vs 1455MHz)
More VRAM (24GB vs 16GB)
Larger VRAM bandwidth (896.0GB/s vs 448.0GB/s)
768 additional rendering cores
NVIDIA GeForce RTX 4090 Max-Q 's Advantages
Lower TDP (80W vs 95W)
Score
Benchmark
FP32 (float)
GeForce RTX 5090 Mobile
+12%
31.8 TFLOPS
GeForce RTX 4090 Max Q
28.31 TFLOPS
Graphics Card
Mar 2025
Release Date
Jan 2023
GeForce 50 Mobile
Generation
GeForce 40 Mobile
Mobile
Type
Mobile
PCIe 5.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
990 MHz
Base Clock
930 MHz
1515 MHz
Boost Clock
1455 MHz
1750 MHz
Memory Clock
1750 MHz
Memory
24GB
Memory Size
16GB
GDDR7
Memory Type
GDDR6
256bit
Memory Bus
256bit
896.0GB/s
Bandwidth
448.0GB/s
Render Config
-
-
-
82
SM Count
76
10496
Shading Units
9728
328
TMUs
304
112
ROPs
112
328
Tensor Cores
304
82
RT Cores
76
128 KB (per SM)
L1 Cache
128 KB (per SM)
64 MB
L2 Cache
64 MB
-
-
-
Theoretical Performance
169.7 GPixel/s
Pixel Rate
163.0 GPixel/s
496.9 GTexel/s
Texture Rate
442.3 GTexel/s
31.80 TFLOPS
FP16 (half)
28.31 TFLOPS
31.80 TFLOPS
FP32 (float)
28.31 TFLOPS
496.9 GFLOPS
FP64 (double)
442.3 GFLOPS
Board Design
95W
TDP
80W
550 W
Suggested PSU
-
Portable Device Dependent
Outputs
Portable Device Dependent
None
Power Connectors
None
Graphics Processor
GB203
GPU Name
AD103
GN22-X11-A1
GPU Variant
GN21-X11
Blackwell 2.0
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
5 nm
Process Size
4 nm
45.6 billion
Transistors
45.9 billion
378 mm²
Die Size
379 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.4
Vulkan
1.3
12.0
CUDA
8.9
6.8
Shader Model
6.7
