
DLSS 5 Exposes Power Delivery as the RTX 5090 Bottleneck
Tom's Hardware compared RTX 5090 FE (575W cap) with MSI RTX 5090 Lightning Z (dual 12V-2x6) using DLSS 5, finding FE drew about 551W while the Lightning Z hit roughly 723W and delivered about 16–24% higher FPS across several games (Cyberpunk 2077, Hogwarts Legacy, Control), suggesting DLSS 5’s neural rendering is power‑hungry and that power delivery, not just raw GPU power, may be the bottleneck, with NBA 2K27 kicking off DLSS 5 launch tests and more comparisons anticipated.