NVIDIA GeForce RTX 5090 Mobile vs NVIDIA GeForce RTX 3080 Ti Mobile
GPU · Specs Compare
Graphics Card
Release Date
Mar 2025
Jan 2022
Generation
GeForce 50 Mobile
GeForce 30 Mobile
Type
Mobile
Mobile
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
990 MHz
810 MHz
Boost Clock
1515 MHz
1260 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
24GB
16GB
Memory Type
GDDR7
GDDR6
Memory Bus
256bit
256bit
Bandwidth
896.0GB/s
512.0GB/s
Render Config
SM Count
82
58
Shading Units
10496
7424
TMUs
328
232
ROPs
112
96
Tensor Cores
328
232
RT Cores
82
58
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
64 MB
4 MB
Theoretical Performance
Pixel Rate
169.7 GPixel/s
121.0 GPixel/s
Texture Rate
496.9 GTexel/s
292.3 GTexel/s
FP16 (half)
31.80 TFLOPS
18.71 TFLOPS
FP32 (float)
31.80 TFLOPS
18.71 TFLOPS
FP64 (double)
496.9 GFLOPS
292.3 GFLOPS
Graphics Processor
GPU Name
GB203
GA103S
GPU Variant
GN22-X11-A1
GN20-E8-A1
Architecture
Blackwell 2.0
Ampere
Foundry
TSMC
Samsung
Process Size
5 nm
8 nm
Transistors
45.6 billion
Unknown
Die Size
378 mm²
496 mm²
Board Design
TDP
95W
115W
Suggested PSU
550 W
—
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
3.0
Vulkan
1.4
1.3
CUDA
12.0
8.6
Shader Model
6.8
6.5
Benchmark
Blender
8,089
—
3DMark Time Spy
—
12,905
3DMark Time Spy Extreme
—
6,164
▲ Specs Compare
Data sourced from official specifications and benchmark tests.