xAI Colossus Memphis Phase 2

xAI • United States of America • February 18, 2025

Total GPUs

150.0K

H100 Equiv

200.0K

Power

280.3 MW

FP16

197.9K PF

System Equivalents

This datacenter's 150.0K GPUs equal:

NVIDIA DGX H100

8 GPUs/system

18.8K

NVIDIA HGX H100 (8-GPU)

8 GPUs/system

18.8K

NVIDIA HGX H100 (4-GPU)

4 GPUs/system

37.5K

Specifications

Primary GPU	NVIDIA H100 SXM5 80GB
GPU Count	150.0K
Location	3231 Riverport Rd, Memphis, TN 38109
Sector	Private

Additional Information

This weekend, the @xAI team brought our Colossus 100k H100 training cluster online.... Moreover, it will double in size to 200k (50k H200s) in a few months.

GPU types is from a tweet. Unclear exactly when it was first operational. It was confirmed to be operational Feb 17, 2025, but some evidence suggests that it was operational by December 4th, 2024