NVIDIA Rubin GPU vs NVIDIA RTX A5000-12Q
GPU · Specs Compare
Graphics Card
Release Date
Jan 2026
Apr 2021
Generation
Server Rubin
Quadro Ampere
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
700 MHz
1170 MHz
Boost Clock
2267 MHz
1695 MHz
Memory Clock
2695 MHz
2000 MHz
Memory
Memory Size
288GB
12GB
Memory Type
HBM4
GDDR6
Memory Bus
16384bit
384bit
Bandwidth
22.1TB/s
768.0GB/s
Render Config
SM Count
224
64
Shading Units
28672
8192
TMUs
896
256
ROPs
24
96
Tensor Cores
896
256
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
128 MB
6 MB
RT Cores
—
64
Theoretical Performance
Pixel Rate
54.41 GPixel/s
162.7 GPixel/s
Texture Rate
2031.2 GTexel/s
433.9 GTexel/s
FP16 (half)
260.0 TFLOPS
27.77 TFLOPS
FP32 (float)
130.0 TFLOPS
27.77 TFLOPS
FP64 (double)
32.50 TFLOPS
433.9 GFLOPS
Graphics Processor
GPU Name
GR100
GA102
Architecture
Rubin
Ampere
Foundry
TSMC
Samsung
Process Size
3 nm
8 nm
Transistors
336 billion
28.3 billion
Die Size
1456 mm²
628 mm²
Board Design
TDP
2300W
230W
Suggested PSU
2700 W
550 W
Outputs
No outputs
4x DisplayPort 1.4a
Power Connectors
—
1x 8-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
CUDA
10.7
8.6
Shader Model
N/A
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.