NVIDIA B300 vs NVIDIA GeForce GTX 980 Mobile
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Sep 2015
Generation
Server Blackwell
GeForce 900M
Type
Desktop
Mobile
Bus Interface
PCIe 5.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1665 MHz
1064 MHz
Boost Clock
2032 MHz
1140 MHz
Memory Clock
2000 MHz
1753 MHz
Memory
Memory Size
144GB
8GB
Memory Type
HBM3e
GDDR5
Memory Bus
4096bit
256bit
Bandwidth
4.10TB/s
224.4GB/s
Render Config
SM Count
148
-
Shading Units
18944
2048
TMUs
592
128
ROPs
24
64
Tensor Cores
592
-
L1 Cache
256 KB (per SM)
48 KB (per SMM)
L2 Cache
50 MB
2 MB
Theoretical Performance
Pixel Rate
48.77 GPixel/s
72.96 GPixel/s
Texture Rate
1202.9 GTexel/s
145.9 GTexel/s
FP16 (half)
1231.8 TFLOPS
-
FP32 (float)
76.99 TFLOPS
4.669 TFLOPS
FP64 (double)
1202.9 GFLOPS
145.9 GFLOPS
Graphics Processor
GPU Name
GB110
GM204
Architecture
Blackwell Ultra
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
104 billion
5.2 billion
Die Size
Unknown
398 mm²
GPU Variant
-
N16E-GXX-A1
Board Design
TDP
1400W
Unknown
Suggested PSU
1800 W
-
Outputs
No outputs
Portable Device Dependent
Power Connectors
-
None
Graphics Features
DirectX
N/A
12 (12_1)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
CUDA
10.3
5.2
Shader Model
N/A
6.7 (6.4)