NVIDIA GeForce RTX 3070 Mobile vs NVIDIA B300
GPU Specs Compare
Graphics Card
Release Date
Jan 2021
Sep 2025
Generation
GeForce 30 Mobile
Server Blackwell
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1110 MHz
1665 MHz
Boost Clock
1560 MHz
2032 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
8GB
144GB
Memory Type
GDDR6
HBM3e
Memory Bus
256bit
4096bit
Bandwidth
448.0GB/s
4.10TB/s
Render Config
SM Count
40
148
Shading Units
5120
18944
TMUs
160
592
ROPs
80
24
Tensor Cores
160
592
RT Cores
40
-
L1 Cache
128 KB (per SM)
256 KB (per SM)
L2 Cache
4 MB
50 MB
Theoretical Performance
Pixel Rate
124.8 GPixel/s
48.77 GPixel/s
Texture Rate
249.6 GTexel/s
1202.9 GTexel/s
FP16 (half)
15.97 TFLOPS
1231.8 TFLOPS
FP32 (float)
15.97 TFLOPS
76.99 TFLOPS
FP64 (double)
249.6 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
GA104
GB110
GPU Variant
GA104-770-A1
-
Architecture
Ampere
Blackwell Ultra
Foundry
Samsung
TSMC
Process Size
8 nm
5 nm
Transistors
17.4 billion
104 billion
Die Size
392 mm²
Unknown
Board Design
TDP
115W
1400W
Outputs
No outputs
No outputs
Power Connectors
None
-
Suggested PSU
-
1800 W
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.6
10.3
Shader Model
6.6
N/A