NVIDIA GeForce RTX 4090 vs NVIDIA GeForce RTX 4080 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Sep 2022
Jan 2023
Generation
GeForce 40
GeForce 40 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
2235 MHz
1290 MHz
Boost Clock
2520 MHz
1665 MHz
Memory Clock
1313 MHz
2250 MHz
Memory
Memory Size
24GB
12GB
Memory Type
GDDR6X
GDDR6
Memory Bus
384bit
192bit
Bandwidth
1.01TB/s
432.0GB/s
Render Config
SM Count
128
58
Shading Units
16384
7424
TMUs
512
232
ROPs
176
80
Tensor Cores
512
232
RT Cores
128
58
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
72 MB
48 MB
Theoretical Performance
Pixel Rate
443.5 GPixel/s
133.2 GPixel/s
Texture Rate
1290.2 GTexel/s
386.3 GTexel/s
FP16 (half)
82.58 TFLOPS
24.72 TFLOPS
FP32 (float)
82.58 TFLOPS
24.72 TFLOPS
FP64 (double)
1290.2 GFLOPS
386.3 GFLOPS
Graphics Processor
GPU Name
AD102
AD104
GPU Variant
AD102-300-A1
GN21-X9
Architecture
Ada Lovelace
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
76.3 billion
35.8 billion
Die Size
609 mm²
294 mm²
Board Design
TDP
450W
110W
Suggested PSU
850 W
—
Outputs
1x HDMI 2.13x DisplayPort 1.4a
Portable Device Dependent
Power Connectors
1x 16-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.4
1.3
CUDA
8.9
8.9
Shader Model
6.8
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.