NVIDIA B300 vs NVIDIA GeForce RTX 6090
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Jan 2027
Generation
Server Blackwell
GeForce 60
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1665 MHz
2300 MHz
Boost Clock
2032 MHz
2700 MHz
Memory Clock
2000 MHz
1750 MHz
Memory
Memory Size
144GB
32GB
Memory Type
HBM3e
GDDR7
Memory Bus
4096bit
512bit
Bandwidth
4.10TB/s
1.79TB/s
Render Config
SM Count
148
192
Shading Units
18944
24576
TMUs
592
768
ROPs
24
192
Tensor Cores
592
768
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
50 MB
96 MB
RT Cores
-
192
Theoretical Performance
Pixel Rate
48.77 GPixel/s
518.4 GPixel/s
Texture Rate
1202.9 GTexel/s
2073.6 GTexel/s
FP16 (half)
1231.8 TFLOPS
132.7 TFLOPS
FP32 (float)
76.99 TFLOPS
132.7 TFLOPS
FP64 (double)
1202.9 GFLOPS
2.074 TFLOPS
Graphics Processor
GPU Name
GB110
GR202
Architecture
Blackwell Ultra
Rubin
Foundry
TSMC
TSMC
Process Size
5 nm
3 nm
Transistors
104 billion
Unknown
Die Size
Unknown
Unknown
GPU Variant
-
GR202-300-A1
Board Design
TDP
1400W
525W
Suggested PSU
1800 W
900 W
Outputs
No outputs
1x HDMI 2.1b3x DisplayPort 2.1b
Power Connectors
-
1x 16-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.4
CUDA
10.3
12.0
Shader Model
N/A
6.9