NVIDIA GeForce RTX 3060 3840SP vs NVIDIA B300
GPU Specs Compare
Graphics Card
Release Date
Jan 2021
Sep 2025
Generation
GeForce 30
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1627 MHz
1665 MHz
Boost Clock
1852 MHz
2032 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
6GB
144GB
Memory Type
GDDR6
HBM3e
Memory Bus
192bit
4096bit
Bandwidth
336.0GB/s
4.10TB/s
Render Config
SM Count
30
148
Shading Units
3840
18944
TMUs
120
592
ROPs
48
24
Tensor Cores
120
592
RT Cores
30
-
L1 Cache
128 KB (per SM)
256 KB (per SM)
L2 Cache
3 MB
50 MB
Theoretical Performance
Pixel Rate
88.90 GPixel/s
48.77 GPixel/s
Texture Rate
222.2 GTexel/s
1202.9 GTexel/s
FP16 (half)
14.22 TFLOPS
1231.8 TFLOPS
FP32 (float)
14.22 TFLOPS
76.99 TFLOPS
FP64 (double)
222.2 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
GA106
GB110
GPU Variant
GA106-400-A1
-
Architecture
Ampere
Blackwell Ultra
Foundry
Samsung
TSMC
Process Size
8 nm
5 nm
Transistors
12 billion
104 billion
Die Size
276 mm²
Unknown
Board Design
TDP
185W
1400W
Suggested PSU
450 W
1800 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
No outputs
Power Connectors
1x 12-pin
-
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
6.7
N/A