NVIDIA Rubin Ultra GPU vs NVIDIA Tesla K20c
GPU · Specs Compare
Graphics Card
Release Date
Jan 2027
Nov 2012
Generation
Server Rubin
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 6.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
700 MHz
—
Boost Clock
2267 MHz
—
Memory Clock
1900 MHz
1300 MHz
Memory
Memory Size
1024GB
5GB
Memory Type
HBM4e
GDDR5
Memory Bus
32768bit
320bit
Bandwidth
31.1TB/s
208.0GB/s
Render Config
SM Count
448
—
Shading Units
57344
2496
TMUs
1792
208
ROPs
24
40
Tensor Cores
1792
—
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
128 MB
1280 KB
Theoretical Performance
Pixel Rate
54.41 GPixel/s
36.71 GPixel/s
Texture Rate
4062.5 GTexel/s
146.8 GTexel/s
FP16 (half)
520.0 TFLOPS
—
FP32 (float)
260.0 TFLOPS
3.524 TFLOPS
FP64 (double)
65.00 TFLOPS
1175 GFLOPS
Graphics Processor
GPU Name
GR110
GK110
Architecture
Rubin Ultra
Kepler
Foundry
TSMC
TSMC
Process Size
3 nm
28 nm
Transistors
670 billion
7.08 billion
Die Size
2912 mm²
561 mm²
GPU Variant
—
GK110-885-KA-A1
Board Design
TDP
3600W
225W
Suggested PSU
4000 W
550 W
Outputs
No outputs
No outputs
Power Connectors
—
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
N/A
12 (11_0)
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
Benchmark
OctaneBench
—
55
▲ Specs Compare
Data sourced from official specifications and benchmark tests.