NVIDIA GB10 vs NVIDIA Tesla K20m
GPU Specs Compare
Graphics Card
Release Date
Oct 2025
Jan 2013
Generation
Server Blackwell
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 5.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1665 MHz
-
Boost Clock
2418 MHz
-
Memory Clock
1067 MHz
1300 MHz
Memory
Memory Size
128GB
5GB
Memory Type
LPDDR5X
GDDR5
Memory Bus
256bit
320bit
Bandwidth
273.2GB/s
208.0GB/s
Render Config
SM Count
48
-
Shading Units
6144
2496
TMUs
384
208
ROPs
48
40
Tensor Cores
384
-
RT Cores
48
-
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
50 MB
1280 KB
Theoretical Performance
Pixel Rate
116.1 GPixel/s
36.71 GPixel/s
Texture Rate
928.5 GTexel/s
146.8 GTexel/s
FP16 (half)
29.71 TFLOPS
-
FP32 (float)
29.71 TFLOPS
3.524 TFLOPS
FP64 (double)
464.3 GFLOPS
1175 GFLOPS
Graphics Processor
GPU Name
GB20B
GK110
Architecture
Blackwell 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
3 nm
28 nm
Transistors
Unknown
7.08 billion
Die Size
Unknown
561 mm²
Board Design
TDP
140W
225W
Suggested PSU
300 W
550 W
Outputs
1x HDMI
No outputs
Power Connectors
None
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
12.1
3.5
Shader Model
N/A
5.1