NVIDIA GeForce GTX 950M vs NVIDIA B300
GPU · Specs Compare
Graphics Card
Release Date
Mar 2015
Sep 2025
Generation
GeForce 900M
Server Blackwell
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
993 MHz
1665 MHz
Boost Clock
1124 MHz
2032 MHz
Memory Clock
900 MHz
2000 MHz
Memory
Memory Size
4GB
144GB
Memory Type
DDR3
HBM3e
Memory Bus
128bit
4096bit
Bandwidth
28.80GB/s
4.10TB/s
Render Config
Shading Units
640
18944
TMUs
40
592
ROPs
16
24
L1 Cache
64 KB (per SMM)
256 KB (per SM)
L2 Cache
2 MB
50 MB
SM Count
—
148
Tensor Cores
—
592
Theoretical Performance
Pixel Rate
17.98 GPixel/s
48.77 GPixel/s
Texture Rate
44.96 GTexel/s
1202.9 GTexel/s
FP32 (float)
1439 GFLOPS
76.99 TFLOPS
FP64 (double)
44.96 GFLOPS
1202.9 GFLOPS
FP16 (half)
—
1231.8 TFLOPS
Graphics Processor
GPU Name
GM107
GB110
GPU Variant
N16P-GT
—
Architecture
Maxwell
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
1.87 billion
104 billion
Die Size
148 mm²
Unknown
Board Design
TDP
75W
1400W
Outputs
No outputs
No outputs
Suggested PSU
—
1800 W
Graphics Features
DirectX
12 (11_0)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
5.0
10.3
Shader Model
5.1
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.