NVIDIA Rubin GPU vs NVIDIA A800 PCIe 80 GB
GPU · Specs Compare
Graphics Card
Release Date
Jan 2026
Nov 2022
Generation
Server Rubin
Ampere
Type
Desktop
AI GPU
Bus Interface
PCIe 6.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
700 MHz
1065 MHz
Boost Clock
2267 MHz
1410 MHz
Memory Clock
2695 MHz
1593 MHz
Memory
Memory Size
288GB
80GB
Memory Type
HBM4
HBM2e
Memory Bus
16384bit
5120bit
Bandwidth
22.1TB/s
2039GB/s
Render Config
SM Count
224
108
Shading Units
28672
6912
TMUs
896
432
ROPs
24
160
Tensor Cores
896
432
L1 Cache
256 KB (per SM)
192 KB (per SM)
L2 Cache
128 MB
80 MB
Theoretical Performance
Pixel Rate
54.41 GPixel/s
225.6 GPixel/s
Texture Rate
2031.2 GTexel/s
609.1 GTexel/s
FP16 (half)
260.0 TFLOPS
77.97 TFLOPS
FP32 (float)
130.0 TFLOPS
19.49 TFLOPS
FP64 (double)
32.50 TFLOPS
9.746 TFLOPS
Graphics Processor
GPU Name
GR100
GA100
Architecture
Rubin
Ampere
Foundry
TSMC
TSMC
Process Size
3 nm
7 nm
Transistors
336 billion
54.2 billion
Die Size
1456 mm²
826 mm²
Board Design
TDP
2300W
250W
Suggested PSU
2700 W
600 W
Outputs
No outputs
No outputs
Power Connectors
—
8-pin EPS
Graphics Features
DirectX
N/A
N/A
OpenGL
N/A
N/A
OpenCL
3.0
3.0
Vulkan
N/A
N/A
CUDA
10.7
8.0
Shader Model
N/A
N/A
Benchmark
Blender
—
3,719
▲ Specs Compare
Data sourced from official specifications and benchmark tests.