NVIDIA GB10 vs NVIDIA L40G
GPU · Specs Compare
Graphics Card
Release Date
Oct 2025
Oct 2022
Generation
Server Blackwell
Tesla Ada
Type
Desktop
Professional
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1665 MHz
1005 MHz
Boost Clock
2418 MHz
2475 MHz
Memory Clock
1067 MHz
2250 MHz
Memory
Memory Size
128GB
24GB
Memory Type
LPDDR5X
GDDR6
Memory Bus
256bit
384bit
Bandwidth
273.2GB/s
864.0GB/s
Render Config
SM Count
48
142
Shading Units
6144
18176
TMUs
384
568
ROPs
48
192
Tensor Cores
384
568
RT Cores
48
142
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
50 MB
48 MB
Theoretical Performance
Pixel Rate
116.1 GPixel/s
475.2 GPixel/s
Texture Rate
928.5 GTexel/s
1406 GTexel/s
FP16 (half)
29.71 TFLOPS
89.97 TFLOPS
FP32 (float)
29.71 TFLOPS
89.97 TFLOPS
FP64 (double)
464.3 GFLOPS
1406 GFLOPS
Graphics Processor
GPU Name
GB20B
AD102
Architecture
Blackwell 2.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
3 nm
4 nm
Transistors
Unknown
76.3 billion
Die Size
Unknown
608 mm²
GPU Variant
—
AD102-???-A1
Board Design
TDP
140W
300W
Suggested PSU
300 W
700 W
Outputs
1x HDMI
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
1x 16-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
CUDA
12.1
8.9
Shader Model
N/A
6.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.