NVIDIA Rubin GPU vs NVIDIA GeForce RTX 4090
GPU Specs Compare
Graphics Card
Release Date
Jan 2026
Sep 2022
Generation
Server Rubin
GeForce 40
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
700 MHz
2235 MHz
Boost Clock
2267 MHz
2520 MHz
Memory Clock
2695 MHz
1313 MHz
Memory
Memory Size
288GB
24GB
Memory Type
HBM4
GDDR6X
Memory Bus
16384bit
384bit
Bandwidth
22.1TB/s
1.01TB/s
Render Config
SM Count
224
128
Shading Units
28672
16384
TMUs
896
512
ROPs
24
176
Tensor Cores
896
512
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
128 MB
72 MB
RT Cores
-
128
Theoretical Performance
Pixel Rate
54.41 GPixel/s
443.5 GPixel/s
Texture Rate
2031.2 GTexel/s
1290.2 GTexel/s
FP16 (half)
260.0 TFLOPS
82.58 TFLOPS
FP32 (float)
130.0 TFLOPS
82.58 TFLOPS
FP64 (double)
32.50 TFLOPS
1290.2 GFLOPS
Graphics Processor
GPU Name
GR100
AD102
Architecture
Rubin
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
3 nm
5 nm
Transistors
336 billion
76.3 billion
Die Size
1456 mm²
609 mm²
GPU Variant
-
AD102-300-A1
Board Design
TDP
2300W
450W
Suggested PSU
2700 W
850 W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
-
1x 16-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.4
CUDA
10.7
8.9
Shader Model
N/A
6.8