GeForce RTX 4090 Mobile vs GeForce RTX 5090 Mobile

NVIDIA

GeForce RTX 4090 Mobile

2023Core: 1335 MHzBoost: 1695 MHz

Popular choices:

VS
NVIDIA

GeForce RTX 5090 Mobile

2025Core: 990 MHzBoost: 1515 MHz

Popular choices:

Performance Spectrum - GPU

About G3D Mark

G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

GeForce RTX 4090 Mobile

2023

Why buy it

  • 156.9% more average FPS across 50 tracked games in our benchmark data.

Trade-offs

  • Less VRAM, with 16 GB vs 24 GB for high-resolution textures and newer games.
  • 26.3% higher power demand at 120W vs 95W.

GeForce RTX 5090 Mobile

2025

Why buy it

  • 50% more VRAM for high-resolution textures and newer games (24 GB vs 16 GB).
  • Draws 95W instead of 120W, a 25W reduction.
  • More future proof: Blackwell (2024−2025) on 4nm with a newer platform for upcoming games.

Trade-offs

  • Lower average FPS than GeForce RTX 4090 Mobile across 50 tracked games in our benchmark data.

Quick Answers

So, is GeForce RTX 5090 Mobile better than GeForce RTX 4090 Mobile?
Yes. GeForce RTX 5090 Mobile is clearly the better overall GPU here. GeForce RTX 4090 Mobile averages 156.9% more FPS across 50 tracked games in our benchmark data. You are also looking at 28,280 vs 27,048 in G3D Mark. On top of that, GeForce RTX 5090 Mobile is a 2025 card with DLSS 4 + Multi Frame Gen, while GeForce RTX 4090 Mobile is a 2023 model from an older generation with DLSS 3.5 + Frame Generation. So this is not really a tight same-tier comparison. It is more a modern card against an older, weaker alternative.
Which one is more future-proof for 2026 and beyond?
GeForce RTX 5090 Mobile is the more future-proof choice for 2026 and beyond. You are getting a newer 2025 generation instead of 2023, more VRAM at 24 GB instead of 16 GB, and better upscaling support with DLSS 4 Super Resolution (2025) instead of DLSS 3.5 Super Resolution (2023) and better frame-generation support with DLSS 4 Multi Frame Generation (2025) instead of DLSS 3.5 + Frame Generation (2023). That extra memory headroom makes it the safer pick for newer games, heavier textures, and higher settings over time.
Which one is the smarter buy today, not just the cheaper card?
GeForce RTX 5090 Mobile is priced in an unclear MSRP range at an unclear MSRP versus an unclear MSRP, and you are getting lower estimated average FPS across 50 tracked games in our benchmark data and 4.6% higher G3D Mark. G3D-per-dollar is basically tied between them. If you are comfortable paying the premium for the stronger gaming result, GeForce RTX 5090 Mobile is the one to buy. If staying closer to budget matters more, GeForce RTX 4090 Mobile still makes more sense on price alone and remains capable enough for modern gaming.
Is GeForce RTX 4090 Mobile still worth buying for gaming in 2026?
Yes. GeForce RTX 4090 Mobile is still a strong gaming GPU in 2026: it is excellent for 1080p, very strong for 1440p, and still capable at 4K with sensible settings or upscaling. This mostly comes down to price. If you want to stay closer to an unclear MSRP, it remains a strong choice; if you are comfortable paying more, GeForce RTX 5090 Mobile earns that extra money with a clearly stronger gaming result and a more complete overall package.

Games Benchmarks

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 9800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

Path of Exile 2

Path of Exile 2

PresetGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
1080p
low204 FPS149 FPS
medium190 FPS133 FPS
high163 FPS107 FPS
ultra149 FPS76 FPS
1440p
low188 FPS136 FPS
medium159 FPS115 FPS
high128 FPS81 FPS
ultra118 FPS57 FPS
4K
low123 FPS60 FPS
medium102 FPS53 FPS
high76 FPS35 FPS
ultra70 FPS31 FPS
Counter-Strike 2

Counter-Strike 2

PresetGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
1080p
low501 FPS167 FPS
medium438 FPS125 FPS
high353 FPS86 FPS
ultra296 FPS60 FPS
1440p
low383 FPS110 FPS
medium332 FPS71 FPS
high268 FPS51 FPS
ultra220 FPS39 FPS
4K
low214 FPS54 FPS
medium187 FPS37 FPS
high159 FPS30 FPS
ultra131 FPS22 FPS
League of Legends

League of Legends

PresetGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
1080p
low884 FPS670 FPS
medium735 FPS533 FPS
high661 FPS458 FPS
ultra570 FPS398 FPS
1440p
low697 FPS478 FPS
medium577 FPS390 FPS
high508 FPS330 FPS
ultra433 FPS276 FPS
4K
low474 FPS307 FPS
medium396 FPS250 FPS
high347 FPS191 FPS
ultra282 FPS141 FPS
Valorant

Valorant

PresetGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
1080p
low723 FPS214 FPS
medium655 FPS183 FPS
high573 FPS148 FPS
ultra528 FPS123 FPS
1440p
low581 FPS170 FPS
medium520 FPS147 FPS
high456 FPS114 FPS
ultra408 FPS94 FPS
4K
low400 FPS92 FPS
medium364 FPS73 FPS
high334 FPS59 FPS
ultra296 FPS48 FPS

Technical Specifications

Side-by-side comparison of GeForce RTX 4090 Mobile and GeForce RTX 5090 Mobile

NVIDIA

GeForce RTX 4090 Mobile

The GeForce RTX 4090 Mobile is manufactured by NVIDIA. It was released in January 3 2023. It features the Ada Lovelace architecture. The core clock ranges from 1335 MHz to 1695 MHz. It has 9728 shading units. The thermal design power (TDP) is 120W. Manufactured using 4 nm process technology. It features 76 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 27,048 points.

NVIDIA

GeForce RTX 5090 Mobile

The GeForce RTX 5090 Mobile is manufactured by NVIDIA. It was released in January 2 2025. It features the Blackwell 2.0 architecture. The core clock ranges from 990 MHz to 1515 MHz. It has 10496 shading units. The thermal design power (TDP) is 95W. Manufactured using 4 nm process technology. G3D Mark benchmark score: 28,280 points.

Graphics Performance

The GeForce RTX 4090 Mobile scores 27,048 and the GeForce RTX 5090 Mobile reaches 28,280 in the G3D Mark benchmark — just a 4.6% difference, making them near-identical in rasterization performance. The GeForce RTX 4090 Mobile is built on Ada Lovelace while the GeForce RTX 5090 Mobile uses Blackwell 2.0, both on a 4 nm process. Shader units: 9,728 (GeForce RTX 4090 Mobile) vs 10,496 (GeForce RTX 5090 Mobile). Boost clocks: 1695 MHz vs 1515 MHz.

FeatureGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
G3D Mark Score
27,048
28,280+5%
Architecture
Ada Lovelace
Blackwell 2.0
Process Node
4 nm
4 nm
Shading Units
9728
10496+8%
Boost Clock
1695 MHz+12%
1515 MHz

Advanced Features (DLSS/FSR)

Both cards support Frame Generation, but the GeForce RTX 5090 Mobile is on a newer tier with DLSS 4 Multi Frame Generation, while the GeForce RTX 4090 Mobile tops out at DLSS 3.5 + Frame Generation.The GeForce RTX 5090 Mobile supports the newer DLSS 4 Super Resolution, whereas the GeForce RTX 4090 Mobile is capped at DLSS 3.5 Super Resolution.

FeatureGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
Upscaling Tech
DLSS 3.5 Super Resolution
DLSS 4 Super Resolution
Frame Generation
DLSS 3.5 + Frame Generation
DLSS 4 Multi Frame Generation+14%
Ray Reconstruction
Yes (DLSS 3.5)
Yes (DLSS 4)+14%
Low Latency
NVIDIA Reflex
NVIDIA Reflex
💾

Video Memory (VRAM)

The GeForce RTX 4090 Mobile comes with 16 GB of VRAM, while the GeForce RTX 5090 Mobile has 24 GB. The GeForce RTX 5090 Mobile offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 576 GB/s (GeForce RTX 4090 Mobile) vs 896 GB/s (GeForce RTX 5090 Mobile) — a 55.6% advantage for the GeForce RTX 5090 Mobile. Bus width: 256-bit vs 256-bit.

FeatureGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
VRAM Capacity
16 GB
24 GB+50%
Memory Type
GDDR6
GDDR6
Memory Bandwidth
576 GB/s
896 GB/s+56%
Bus Width
256-bit
256-bit
🖥️

Display & API Support

DirectX support: 12.2 (GeForce RTX 4090 Mobile) vs 12 Ultimate (12_2) (GeForce RTX 5090 Mobile). Vulkan: 1.3 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 1 vs 4.

FeatureGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
DirectX
12.2+2%
12 Ultimate (12_2)
Vulkan
1.3
1.4+8%
OpenGL
4.6
4.6
Max Displays
1
4+300%
🎬

Media & Encoding

Hardware encoder: 8th Gen NVENC (GeForce RTX 4090 Mobile) vs NVENC (Blackwell) (GeForce RTX 5090 Mobile). Decoder: 5th Gen NVDEC vs NVDEC (Blackwell). Supported codecs: MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4090 Mobile) vs H.264,H.265,AV1,VP9 (GeForce RTX 5090 Mobile).

FeatureGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
Encoder
8th Gen NVENC
NVENC (Blackwell)
Decoder
5th Gen NVDEC
NVDEC (Blackwell)
Codecs
MPEG-2,H.264,HEVC,VP9,AV1
H.264,H.265,AV1,VP9
🔌

Power & Dimensions

The GeForce RTX 4090 Mobile draws 120W versus the GeForce RTX 5090 Mobile's 95W — a 23.3% difference. The GeForce RTX 5090 Mobile is more power-efficient. Recommended PSU: 650W (GeForce RTX 4090 Mobile) vs 650W (GeForce RTX 5090 Mobile). Power connectors: Mobile vs PCIe-powered. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 80°C vs 85.

FeatureGeForce RTX 4090 MobileGeForce RTX 5090 Mobile
TDP
120W
95W-21%
Recommended PSU
650W
650W
Power Connector
Mobile
PCIe-powered
Length
0mm
0mm
Height
0mm
0mm
Slots
0
0
Temp (Load)
80°C-6%
85
Perf/Watt
225.4
297.7+32%