Tests: DLSS 5 Costs 60% of RTX 5090 Speed at 4K - tech
(hx) 10:29 PM CEST - Sep,06 2026
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Hardware Unboxed tested Nvidia’s new DLSS 5 neural rendering in NBA 2K27 without the 6X Multi Frame Generation used in Nvidia’s own charts.
On an RTX 5090 at 4K max settings, the game fell from 192 FPS without DLSS 5 to 76 FPS with it on - a 60% drop.
An RTX 5080 at the same 4K setup fell from 185 FPS to 53 FPS, a 71% cut.
Lowering in-game presets barely helped: the 5090 gained only 2 FPS when dropped from max to High, because DLSS 5 is a heavy post-upscale pass tied to output resolution.
Mid-range RTX 50 cards were much worse off; the 5060 Ti 16GB sat around 50 FPS at 1440p with DLSS 5, and cheaper cards missed 60 FPS even at 1080p.
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Updated:10:29 PM CEST Sep,06
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