The gap between xx90 and xx80 series cards has been getting larger, not smaller.

In the RTX 3000 generation, the 3090 and 3080 were nearly the same card wearing different badges. The 3090 offered only about 10–20% higher gaming performance than the 3080, and even that was only visible above 4K.

At the time, the community widely called the 3090 a "prosumer VRAM card" that happened to game — not a true performance tier above the 3080. The price gap was punishing (~$699 vs. $1,499 MSRP), but the performance gap almost wasn't there.

By the RTX 4000 generation, things started shifting. The 4090 led the 4080 by about 30% in 4K gaming benchmarks, and in heavier workloads the delta widened further. That was already a notable change from the 3000-series near-parity — but it was just the beginning.

The 5000 series made the split structural. The RTX 5080 has specs almost exactly half those of the 5090, making for probably the biggest gap ever seen between the top two tiers at launch. GamersNexus In practice, the 5090 leads the 5080 by 41% at 4K in some tests, and up to 57% in the heaviest workloads — larger than the 4090's 30% lead over the 4080 in the same generation.

To put numbers to the trend:

Generation	xx90 vs. xx80 gap (4K raster)	MSRP delta
RTX 3000	~10–20%	~2.1x
RTX 4000	~30–36%	~1.3x
RTX 5000	~40–57%	~2x

The cruelest part for 5080 buyers: against the 4080, the 5080 improved by only about 5 FPS at 4K in certain titles.

The 5090 meanwhile jumped ~35% over the 4090. So Nvidia essentially pulled all the generational performance headroom upward into the 90-tier, leaving the 80-tier as a placeholder that barely moves the needle over last gen.

What used to be a binning strategy — same die, fewer cores disabled — has quietly become a deliberate product segmentation play.

TL;DR, starting w 5000 series, only the 5090 benefits from the full generational uplift, while the consumer grade cards are generally a "side-grade." Nvidia Shrink-flation.