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RTX 4090 vs RTX 3090 Ti: Gaming Performance & Bottleneck (2026)

The RTX 4090 sits in a higher performance class: 158 FPS at 1440p High against 101 for the RTX 3090 Ti with a Ryzen 7 9800X3D, and a 59% lead at 4K. At 1080p the lead shrinks to 34%, because even a 9800X3D can't feed the RTX 4090 fast enough there, so it earns its keep at 1440p and 4K. Ray tracing widens the gap to 67% (93 vs 56 FPS at 1440p), as the RTX 3090 Ti's RT hardware is less efficient. In esports games like CS2 or Valorant at 1080p they reach 516 and 445 FPS, so either can feed a 360 Hz monitor. At 4K High the RTX 4090 averages 97 FPS and the RTX 3090 Ti 61, both playable without upscaling. Both carry 24 GB of VRAM, enough for 4K High. To stay under a 10% CPU bottleneck at 1440p, the RTX 4090 needs a Core i5-14600K and the RTX 3090 Ti a Ryzen 5 5600.

Relative performance

Faster card = 100%. Average FPS at High settings with a Ryzen 7 9800X3D.

1440p, AAA games

RTX 4090100%
RTX 3090 Ti64%

158 vs 101 FPS · RTX 4090 +56%

4K, AAA games

RTX 4090100%
RTX 3090 Ti63%

97 vs 61 FPS · RTX 4090 +59%

1440p, ray tracing

RTX 4090100%
RTX 3090 Ti60%

93 vs 56 FPS · RTX 4090 +67%

FPS with a Ryzen 7 9800X3D

Average FPS in AAA games, no upscaling. A fast CPU, so the graphics card sets the pace.

SettingRTX 4090RTX 3090 TiLead
1080p High193
CPU-limited		1444090 +34%
1440p High1581014090 +56%
4K High97614090 +59%
1440p ray tracing93564090 +67%

Specifications

Raster index: RTX 4090 = 100.

SpecRTX 4090RTX 3090 Ti
VRAM24 GB24 GB
Ray tracingYes, full speedYes, 95% efficiency
Released20222022
Raster index10063

Which CPU do you need?

Slowest common CPU that keeps each card under a 10% bottleneck at 1440p High.

Graphics cardSlowest CPUFPS
RTX 4090Core i5-14600K142
RTX 3090 TiRyzen 5 560095

Which should you buy?

Buy the RTX 4090 if you want the faster card: it's 59% ahead at 4K. The RTX 3090 Ti is the better buy only if it costs at least 56% less, the gap at 1440p, because then it delivers more frames per dollar. Already own the RTX 3090 Ti? Going to the RTX 4090 gains 56% at 1440p, which is a worthwhile upgrade.

Buy the RTX 4090 if…

  • you want the most FPS: it's 59% faster at 4K and 56% at 1440p.
  • you play with ray tracing: 93 vs 56 FPS at 1440p.

Buy the RTX 3090 Ti if…

  • your CPU is older: a Ryzen 5 5600 is enough to keep it fed at 1440p.
  • it costs at least 56% less than the RTX 4090, which makes it the better value per frame.

Check your build

These numbers use a Ryzen 7 9800X3D to isolate the graphics card. Your own CPU, resolution and settings change the result, so run your exact parts through the calculator.

Check Core i5-14600K + RTX 4090 Check Ryzen 5 5600 + RTX 3090 Ti

Popular builds with these cards

Ryzen 7 9800X3D + RTX 40901440p · GPU-limited 20% · ≈158 FPSRyzen 7 7800X3D + RTX 40901440p · Balanced · ≈153 FPSCore i5-14600K + RTX 40901440p · Balanced · ≈142 FPS

RTX 4090 vs RTX 3090 Ti: quick answers

Is the RTX 4090 faster than the RTX 3090 Ti?

Yes. The RTX 4090 is about 59% faster at 4K and 56% faster at 1440p in AAA games at High settings. With ray tracing on at 1440p the RTX 4090 gets about 93 FPS and the RTX 3090 Ti 56 FPS.

How many FPS do the RTX 4090 and RTX 3090 Ti get?

With a Ryzen 7 9800X3D at High settings in AAA games, the RTX 4090 averages about 193 FPS at 1080p, 158 at 1440p and 97 at 4K. The RTX 3090 Ti averages 144, 101 and 61 FPS. DLSS, FSR or XeSS upscaling adds roughly 40% where the graphics card is the limit.

What CPU do I need for the RTX 4090 or RTX 3090 Ti?

To keep the CPU bottleneck under 10% at 1440p, the RTX 4090 needs at least a Core i5-14600K and the RTX 3090 Ti needs at least a Ryzen 5 5600. At 1080p you need a faster CPU for the same result, and at 4K a slower one is fine. A slower CPU narrows the gap between the RTX 4090 and the RTX 3090 Ti.