NVIDIA Rubin GPU vs NVIDIA Tesla K40st
GPU Specs Compare
Graphics Card
Release Date
Jan 2026
Nov 2013
Generation
Server Rubin
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 6.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
700 MHz
-
Boost Clock
2267 MHz
-
Memory Clock
2695 MHz
1502 MHz
Memory
Memory Size
288GB
12GB
Memory Type
HBM4
GDDR5
Memory Bus
16384bit
384bit
Bandwidth
22.1TB/s
288.4GB/s
Render Config
SM Count
224
-
Shading Units
28672
2880
TMUs
896
240
ROPs
24
48
Tensor Cores
896
-
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
128 MB
1536 KB
Theoretical Performance
Pixel Rate
54.41 GPixel/s
34.50 GPixel/s
Texture Rate
2031.2 GTexel/s
138.0 GTexel/s
FP16 (half)
260.0 TFLOPS
-
FP32 (float)
130.0 TFLOPS
3.312 TFLOPS
FP64 (double)
32.50 TFLOPS
1104 GFLOPS
Graphics Processor
GPU Name
GR100
GK110B
Architecture
Rubin
Kepler
Foundry
TSMC
TSMC
Process Size
3 nm
28 nm
Transistors
336 billion
7.08 billion
Die Size
1456 mm²
561 mm²
Board Design
TDP
2300W
245W
Suggested PSU
2700 W
550 W
Outputs
No outputs
No outputs
Graphics Features
DirectX
N/A
12 (11_1)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.1
CUDA
10.7
3.5
Shader Model
N/A
5.1