NVIDIA B300 vs NVIDIA GeForce GTX 980
GPU · Specs Compare
Graphics Card
Release Date
Sep 2025
Sep 2014
Generation
Server Blackwell
GeForce 900
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1665 MHz
1127 MHz
Boost Clock
2032 MHz
1216 MHz
Memory Clock
2000 MHz
1753 MHz
Memory
Memory Size
144GB
4GB
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
77.82 GPixel/s
Texture Rate
1202.9 GTexel/s
155.6 GTexel/s
FP16 (half)
1231.8 TFLOPS
—
FP32 (float)
76.99 TFLOPS
4.981 TFLOPS
FP64 (double)
1202.9 GFLOPS
155.6 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
—
GM204-400-A1
Board Design
TDP
1400W
165W
Suggested PSU
1800 W
450 W
Outputs
No outputs
1x DVI1x HDMI 2.03x DisplayPort 1.4a
Power Connectors
—
2x 6-pin
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
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.