NVIDIA GeForce RTX 3090 vs NVIDIA GeForce RTX 4090 Mobile
GPU Specs Compare
Graphics Card
Release Date
Sep 2020
Jan 2023
Generation
GeForce 30
GeForce 40 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1395 MHz
1335 MHz
Boost Clock
1695 MHz
1695 MHz
Memory Clock
1219 MHz
2250 MHz
Memory
Memory Size
24GB
16GB
Memory Type
GDDR6X
GDDR6
Memory Bus
384bit
256bit
Bandwidth
936.2GB/s
576.0GB/s
Render Config
SM Count
82
76
Shading Units
10496
9728
TMUs
328
304
ROPs
112
112
Tensor Cores
328
304
RT Cores
82
76
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
6 MB
64 MB
Theoretical Performance
Pixel Rate
189.8 GPixel/s
189.8 GPixel/s
Texture Rate
556.0 GTexel/s
515.3 GTexel/s
FP16 (half)
35.58 TFLOPS
32.98 TFLOPS
FP32 (float)
35.58 TFLOPS
32.98 TFLOPS
FP64 (double)
556.0 GFLOPS
515.3 GFLOPS
Graphics Processor
GPU Name
GA102
AD103
GPU Variant
GA102-300-A1
GN21-X11
Architecture
Ampere
Ada Lovelace
Foundry
Samsung
TSMC
Process Size
8 nm
5 nm
Transistors
28.3 billion
45.9 billion
Die Size
628 mm²
379 mm²
Board Design
TDP
350W
120W
Suggested PSU
750 W
-
Outputs
1x HDMI 2.13x DisplayPort 1.4a
Portable Device Dependent
Power Connectors
1x 12-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.3
CUDA
8.6
8.9
Shader Model
6.6
6.8