NVIDIA GB300 (Blackwell Ultra)

FP16 throughput

2.5×10¹⁵ FLOP/s

Memory

268 GB

TDP

1.4 kW

NVIDIA GB300 (Blackwell Ultra) is an AI accelerator designed by NVIDIA (GPU), released in August 2025. It is built on a 4 nm process at TSMC.

It delivers 2.5×10¹⁵ FLOP/s of tensor FP16/BF16 throughput, 5×10¹⁵ FLOP/s at FP8 and 1.5×10¹⁶ FLOP/s at FP4. It carries 268 GB of memory at 7.3 TB/s of bandwidth. Its thermal design power is 1.4 kW.

Full record

Manufacturer: NVIDIA
Type: GPU
Release date: Aug 22, 2025
Tensor FP16/BF16: 2.5×10¹⁵ FLOP/s
FP8: 5×10¹⁵ FLOP/s
FP4: 1.5×10¹⁶ FLOP/s
FP32: 8×10¹³ FLOP/s
FP64: 1.3×10¹² FLOP/s
INT8: 1.6×10¹⁴ OP/s
Memory: 268 GB
Memory bandwidth: 7.3 TB
TDP: 1.4 kW
Process node: 4 nm
Foundry: TSMC