NVIDIA GeForce RTX 3090 vs NVIDIA GeForce RTX 3080 Mobile 16 GB
GPU · Specs Compare
Graphics Card
Release Date
Sep 2020
Jan 2021
Generation
GeForce 30
GeForce 30 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1395 MHz
1110 MHz
Boost Clock
1695 MHz
1545 MHz
Memory Clock
1219 MHz
1750 MHz
Memory
Memory Size
24GB
16GB
Memory Type
GDDR6X
GDDR6
Memory Bus
384bit
256bit
Bandwidth
936.2GB/s
448.0GB/s
Render Config
SM Count
82
48
Shading Units
10496
6144
TMUs
328
192
ROPs
112
96
Tensor Cores
328
192
RT Cores
82
48
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
6 MB
4 MB
Theoretical Performance
Pixel Rate
189.8 GPixel/s
148.3 GPixel/s
Texture Rate
556.0 GTexel/s
296.6 GTexel/s
FP16 (half)
35.58 TFLOPS
18.98 TFLOPS
FP32 (float)
35.58 TFLOPS
18.98 TFLOPS
FP64 (double)
556.0 GFLOPS
296.6 GFLOPS
Graphics Processor
GPU Name
GA102
GA104
GPU Variant
GA102-300-A1
GA104-775-A1
Architecture
Ampere
Ampere
Foundry
Samsung
Samsung
Process Size
8 nm
8 nm
Transistors
28.3 billion
17.4 billion
Die Size
628 mm²
392 mm²
Board Design
TDP
350W
115W
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
8.6
Shader Model
6.6
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.