If you are using a high-end PC with 16GB of RAM, qBittorrent is probably safer and better. However, if you are torrenting on a Raspberry Pi, an old laptop, or a Windows XP/Vista/7 retro machine, uTorrent 09 is unbeatable.

: It consumed minimal RAM and CPU power, allowing users to run the client in the background without affecting system performance. Feature Richness

A critical innovation in BitTorrent is the algorithm. In traditional P2P networks, "free-riding" (downloading without uploading) was a major bottleneck.