NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce RTX 5090 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Mar 2025
Generation
Navi IV
GeForce 50 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1700 MHz
990 MHz
Boost Clock
3130 MHz
1515 MHz
Memory Clock
2518 MHz
1750 MHz
Memory
Memory Size
8GB
24GB
Memory Type
GDDR6
GDDR7
Memory Bus
128bit
256bit
Bandwidth
322.3GB/s
896.0GB/s
Render Config
SM Count
80
82
Compute Units
32
—
Shading Units
2048
10496
TMUs
128
328
ROPs
64
112
Tensor Cores
320
328
RT Cores
32
82
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
4 MB
64 MB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
200.3 GPixel/s
169.7 GPixel/s
Texture Rate
400.6 GTexel/s
496.9 GTexel/s
FP16 (half)
51.28 TFLOPS
31.80 TFLOPS
FP32 (float)
25.64 TFLOPS
31.80 TFLOPS
FP64 (double)
801.3 GFLOPS
496.9 GFLOPS
Graphics Processor
GPU Name
Navi 44
GB203
GPU Variant
Navi 44 XT(215-176400102)
GN22-X11-A1
Architecture
RDNA 4.0
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
5 nm
Transistors
29.7 billion
45.6 billion
Die Size
199 mm²
378 mm²
Board Design
TDP
150W
95W
Suggested PSU
450 W
550 W
Outputs
1x HDMI 2.1b2x DisplayPort 2.1a
Portable Device Dependent
Power Connectors
1x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
3.0
Vulkan
1.3
1.4
CUDA
8.6
12.0
Shader Model
6.8
6.8
Benchmark
Blender
5,956
8,089
▲ Specs Compare
Data sourced from official specifications and benchmark tests.