NVIDIA GB10 vs NVIDIA Tesla K20Xm
GPU Specs Compare
Graphics Card
Release Date
Oct 2025
Nov 2012
Generation
Server Blackwell
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1665 MHz
-
Boost Clock
2418 MHz
-
Memory Clock
1067 MHz
1300 MHz
Memory
Memory Size
128GB
6GB
Memory Type
LPDDR5X
GDDR5
Memory Bus
256bit
384bit
Bandwidth
273.2GB/s
249.6GB/s
Render Config
SM Count
48
-
Shading Units
6144
2688
TMUs
384
224
ROPs
48
48
Tensor Cores
384
-
RT Cores
48
-
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
50 MB
1536 KB
Theoretical Performance
Pixel Rate
116.1 GPixel/s
40.99 GPixel/s
Texture Rate
928.5 GTexel/s
164.0 GTexel/s
FP16 (half)
29.71 TFLOPS
-
FP32 (float)
29.71 TFLOPS
3.935 TFLOPS
FP64 (double)
464.3 GFLOPS
1312 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
235W
Suggested PSU
300 W
550 W
Outputs
1x HDMI
No outputs
Power Connectors
None
-
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