NVIDIA GeForce RTX 3080 Ti Mobile vs NVIDIA GeForce RTX 5080 Mobile
We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Ti Mobile and 16GB VRAM GeForce RTX 5080 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 5080 Mobile 's Advantages
Released 3 years and 3 months late
Boost Clock has increased by 19% (1500MHz vs 1260MHz)
Larger VRAM bandwidth (896.0GB/s vs 512.0GB/s)
256 additional rendering cores
Lower TDP (80W vs 115W)
Score
Benchmark
FP32 (float)
GeForce RTX 3080 Ti Mobile
18.71 TFLOPS
GeForce RTX 5080 Mobile
+23%
23.04 TFLOPS
Graphics Card
Jan 2022
Release Date
Apr 2025
GeForce 30 Mobile
Generation
GeForce 50 Mobile
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
810 MHz
Base Clock
975 MHz
1260 MHz
Boost Clock
1500 MHz
2000 MHz
Memory Clock
1750 MHz
Memory
16GB
Memory Size
16GB
GDDR6
Memory Type
GDDR7
256bit
Memory Bus
256bit
512.0GB/s
Bandwidth
896.0GB/s
Render Config
-
-
-
58
SM Count
60
7424
Shading Units
7680
232
TMUs
240
96
ROPs
96
232
Tensor Cores
240
58
RT Cores
60
128 KB (per SM)
L1 Cache
128 KB (per SM)
4 MB
L2 Cache
64 MB
-
-
-
Theoretical Performance
121.0 GPixel/s
Pixel Rate
144.0 GPixel/s
292.3 GTexel/s
Texture Rate
360.0 GTexel/s
18.71 TFLOPS
FP16 (half)
23.04 TFLOPS
18.71 TFLOPS
FP32 (float)
23.04 TFLOPS
292.3 GFLOPS
FP64 (double)
360.0 GFLOPS
Board Design
115W
TDP
80W
-
Suggested PSU
550 W
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
None
Graphics Processor
GA103S
GPU Name
GB203
GN20-E8-A1
GPU Variant
-
Ampere
Architecture
Blackwell 2.0
Samsung
Foundry
TSMC
8 nm
Process Size
5 nm
Unknown
Transistors
45.6 billion
496 mm²
Die Size
378 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
1.4
8.6
CUDA
12.0
6.5
Shader Model
6.8
