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 3090

2020

Why buy it

✅4.4% more average FPS across 50 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 17.7 vs 0 G3D/$ ($1,499 MSRP vs Unknown MSRP).
✅7.9% more Tensor Cores for AI-powered features like DLSS and frame generation, which can increase overall FPS in supported games (328 vs 304).
✅50% more VRAM for high-resolution textures and newer games (24 GB vs 16 GB).

Trade-offs

❌No equivalent frame-generation stack like DLSS 3.5 + Frame Generation (2023).
❌Weaker long-term outlook: GeForce RTX 4090 Mobile is the safer future-proof pick thanks to newer hardware and better gaming feature support.
❌191.7% higher power demand at 350W vs 120W.

GeForce RTX 4090 Mobile

2023

Why buy it

✅Access to a newer frame-generation stack with DLSS 3.5 + Frame Generation (2023).
✅More future proof: Ada Lovelace (2022−2024) on 4nm with a newer platform for upcoming games.
✅Draws 120W instead of 350W, a 230W reduction.

Trade-offs

❌Lower average FPS than GeForce RTX 3090 across 50 tracked games in our benchmark data.
❌Less VRAM, with 16 GB vs 24 GB for high-resolution textures and newer games.
❌Fewer Tensor Cores for AI-powered features like DLSS and frame generation (304 vs 328), which can reduce FPS gains in supported games.
❌Lower G3D Mark per dollar, at 0 vs 17.7 G3D/$ (Unknown MSRP vs $1,499 MSRP).

GeForce RTX 3090

2020

GeForce RTX 4090 Mobile

2023

Why buy it

✅4.4% more average FPS across 50 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 17.7 vs 0 G3D/$ ($1,499 MSRP vs Unknown MSRP).
✅7.9% more Tensor Cores for AI-powered features like DLSS and frame generation, which can increase overall FPS in supported games (328 vs 304).
✅50% more VRAM for high-resolution textures and newer games (24 GB vs 16 GB).

Why buy it

✅Access to a newer frame-generation stack with DLSS 3.5 + Frame Generation (2023).
✅More future proof: Ada Lovelace (2022−2024) on 4nm with a newer platform for upcoming games.
✅Draws 120W instead of 350W, a 230W reduction.

Trade-offs

❌No equivalent frame-generation stack like DLSS 3.5 + Frame Generation (2023).
❌Weaker long-term outlook: GeForce RTX 4090 Mobile is the safer future-proof pick thanks to newer hardware and better gaming feature support.
❌191.7% higher power demand at 350W vs 120W.

Trade-offs

❌Lower average FPS than GeForce RTX 3090 across 50 tracked games in our benchmark data.
❌Less VRAM, with 16 GB vs 24 GB for high-resolution textures and newer games.
❌Fewer Tensor Cores for AI-powered features like DLSS and frame generation (304 vs 328), which can reduce FPS gains in supported games.
❌Lower G3D Mark per dollar, at 0 vs 17.7 G3D/$ (Unknown MSRP vs $1,499 MSRP).

Quick Answers

So, is GeForce RTX 4090 Mobile better than GeForce RTX 3090?

Yes, but this is not really about a huge raw performance gap. GeForce RTX 3090 averages 4.4% more FPS across 50 tracked games in our benchmark data. The broader synthetic picture is also very close at 26,594 vs 27,048 in G3D Mark. The bigger reason to prefer GeForce RTX 4090 Mobile is the overall package: you are getting a newer generation, DLSS 3.5 + Frame Generation, plus much lower power draw (120W vs 350W).

Which one is more future-proof for 2026 and beyond?

GeForce RTX 4090 Mobile is the more future-proof choice for 2026 and beyond. You are getting a newer 2023 generation instead of 2020, better upscaling support with DLSS 3.5 Super Resolution (2023) instead of DLSS 2 Super Resolution (2020) and better frame-generation support with DLSS 3.5 + Frame Generation (2023) instead of DLSS Super Resolution, and a 4nm process instead of 8nm. That broader feature stack should age better as more games lean on modern upscaling and frame-generation support.

Which one is the smarter buy today, not just the cheaper card?

GeForce RTX 3090 can still make sense if you find it at the right price, especially around $1,499 MSRP. GeForce RTX 4090 Mobile is still the smarter buy for most people, though, because the raw performance is close while the overall package is cleaner. GeForce RTX 4090 Mobile is priced in an unclear MSRP range at an unclear MSRP versus $1,499 MSRP, and you are getting lower estimated average FPS across 50 tracked games in our benchmark data and 1.7% higher G3D Mark. Moving to an unclear MSRP gets you newer hardware, lower power draw (120W vs 350W), and DLSS 3.5 + Frame Generation.

Is GeForce RTX 3090 still worth buying for gaming in 2026?

Yes. GeForce RTX 3090 is still a strong gaming card in 2026: it is excellent for 1080p, very strong for 1440p, and still capable at 4K with sensible settings or upscaling. Price is really the swing factor here. If you find it at or below $1,499 MSRP, it remains a very sensible buy. GeForce RTX 4090 Mobile is still the safer recommendation for most fresh builds because it offers a cleaner overall package with newer hardware and DLSS 3.5 + Frame Generation.

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.

GeForce RTX 3090 Benchmark Check

GeForce RTX 4090 Mobile Benchmark Check

Path of Exile 2

Preset	GeForce RTX 3090	GeForce RTX 4090 Mobile
1080p
low	259 FPS	204 FPS
medium	240 FPS	190 FPS
high	201 FPS	163 FPS
ultra	176 FPS	149 FPS
1440p
low	249 FPS	188 FPS
medium	208 FPS	159 FPS
high	162 FPS	128 FPS
ultra	145 FPS	118 FPS
4K
low	167 FPS	123 FPS
medium	138 FPS	102 FPS
high	98 FPS	76 FPS
ultra	87 FPS	70 FPS

Open GeForce RTX 3090 Open GeForce RTX 4090 Mobile

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GeForce RTX 3090	GeForce RTX 4090 Mobile
1080p
low	648 FPS	501 FPS
medium	557 FPS	438 FPS
high	440 FPS	353 FPS
ultra	382 FPS	296 FPS
1440p
low	475 FPS	383 FPS
medium	405 FPS	332 FPS
high	319 FPS	268 FPS
ultra	263 FPS	220 FPS
4K
low	229 FPS	214 FPS
medium	193 FPS	187 FPS
high	161 FPS	159 FPS
ultra	134 FPS	131 FPS

Open GeForce RTX 3090 Open GeForce RTX 4090 Mobile

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GeForce RTX 3090	GeForce RTX 4090 Mobile
1080p
low	909 FPS	884 FPS
medium	745 FPS	735 FPS
high	664 FPS	661 FPS
ultra	574 FPS	570 FPS
1440p
low	711 FPS	697 FPS
medium	583 FPS	577 FPS
high	508 FPS	508 FPS
ultra	434 FPS	433 FPS
4K
low	489 FPS	474 FPS
medium	406 FPS	396 FPS
high	349 FPS	347 FPS
ultra	289 FPS	282 FPS

Open GeForce RTX 3090 Open GeForce RTX 4090 Mobile

League of Legends

League of Legends

Valorant

Preset	GeForce RTX 3090	GeForce RTX 4090 Mobile
1080p
low	821 FPS	723 FPS
medium	765 FPS	655 FPS
high	675 FPS	573 FPS
ultra	598 FPS	528 FPS
1440p
low	656 FPS	581 FPS
medium	609 FPS	520 FPS
high	534 FPS	456 FPS
ultra	449 FPS	408 FPS
4K
low	475 FPS	400 FPS
medium	443 FPS	364 FPS
high	397 FPS	334 FPS
ultra	299 FPS	296 FPS

Open GeForce RTX 3090 Open GeForce RTX 4090 Mobile

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GeForce RTX 3090 and GeForce RTX 4090 Mobile

GeForce RTX 3090

The GeForce RTX 3090 is manufactured by NVIDIA. It was released in September 1 2020. It features the Ampere architecture. The core clock ranges from 1395 MHz to 1695 MHz. It has 10496 shading units. The thermal design power (TDP) is 350W. Manufactured using 8 nm process technology. It features 82 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 26,594 points. Launch price was $1,499.

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.

⚡

Graphics Performance

The GeForce RTX 3090 scores 26,594 and the GeForce RTX 4090 Mobile reaches 27,048 in the G3D Mark benchmark — just a 1.7% difference, making them near-identical in rasterization performance. The GeForce RTX 3090 is built on Ampere while the GeForce RTX 4090 Mobile uses Ada Lovelace, both on 8 nm vs 4 nm. Shader units: 10,496 (GeForce RTX 3090) vs 9,728 (GeForce RTX 4090 Mobile). Raw compute: 35.58 TFLOPS (GeForce RTX 3090) vs 32.98 TFLOPS (GeForce RTX 4090 Mobile). Boost clocks: 1695 MHz vs 1695 MHz. Ray tracing: 82 RT cores (GeForce RTX 3090) vs 76 (GeForce RTX 4090 Mobile) with 328 Tensor cores vs 304.

Feature	GeForce RTX 3090	GeForce RTX 4090 Mobile
G3D Mark Score	26,594	27,048+2%
Architecture	Ampere	Ada Lovelace
Process Node	8 nm	4 nm
Shading Units	10496+8%	9728
Compute (TFLOPS)	35.58 TFLOPS+8%	32.98 TFLOPS
Boost Clock	1695 MHz	1695 MHz
ROPs	112	112
TMUs	328+8%	304
L1 Cache	10.3 MB+8%	9.5 MB
L2 Cache	6 MB	64 MB+967%
Ray Tracing Cores	82+8%	76
Tensor Cores	328+8%	304

✨

Advanced Features (DLSS/FSR)

A critical advantage for the GeForce RTX 4090 Mobile is support for DLSS 3.5 + Frame Generation. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce RTX 3090 lacks specific hardware/driver support for this native frame generation tier.The GeForce RTX 4090 Mobile supports the newer DLSS 3.5 Super Resolution, whereas the GeForce RTX 3090 is capped at DLSS 2 Super Resolution.

Feature	GeForce RTX 3090	GeForce RTX 4090 Mobile
Upscaling Tech	DLSS 2 Super Resolution	DLSS 3.5 Super Resolution
Frame Generation	Not Supported	DLSS 3.5 + Frame Generation
Ray Reconstruction	No	Yes (DLSS 3.5)
Low Latency	NVIDIA Reflex	NVIDIA Reflex

💾

Video Memory (VRAM)

The GeForce RTX 3090 comes with 24 GB of VRAM, while the GeForce RTX 4090 Mobile has 16 GB. The GeForce RTX 3090 offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 936 GB/s (GeForce RTX 3090) vs 576 GB/s (GeForce RTX 4090 Mobile) — a 62.5% advantage for the GeForce RTX 3090. Bus width: 384-bit vs 256-bit. L2 Cache: 6 MB (GeForce RTX 3090) vs 64 MB (GeForce RTX 4090 Mobile) — the GeForce RTX 4090 Mobile has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce RTX 3090	GeForce RTX 4090 Mobile
VRAM Capacity	24 GB+50%	16 GB
Memory Type	GDDR6X	GDDR6
Memory Bandwidth	936 GB/s+63%	576 GB/s
Bus Width	384-bit+50%	256-bit
L2 Cache	6 MB	64 MB+967%

🖥️

Display & API Support

DirectX support: 12 Ultimate (GeForce RTX 3090) vs 12.2 (GeForce RTX 4090 Mobile). Vulkan: 1.4 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 1.

Feature	GeForce RTX 3090	GeForce RTX 4090 Mobile
DirectX	12 Ultimate	12.2+2%
Vulkan	1.4+8%	1.3
OpenGL	4.6	4.6
Max Displays	4+300%	1

🎬

Media & Encoding

Hardware encoder: NVENC 7th gen (GeForce RTX 3090) vs 8th Gen NVENC (GeForce RTX 4090 Mobile). Decoder: NVDEC 5th gen vs 5th Gen NVDEC. Supported codecs: H.264,H.265/HEVC,AV1 (GeForce RTX 3090) vs MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4090 Mobile).

Feature	GeForce RTX 3090	GeForce RTX 4090 Mobile
Encoder	NVENC 7th gen	8th Gen NVENC
Decoder	NVDEC 5th gen	5th Gen NVDEC
Codecs	H.264,H.265/HEVC,AV1	MPEG-2,H.264,HEVC,VP9,AV1

🔌

Power & Dimensions

The GeForce RTX 3090 draws 350W versus the GeForce RTX 4090 Mobile's 120W — a 97.9% difference. The GeForce RTX 4090 Mobile is more power-efficient. Recommended PSU: 750W (GeForce RTX 3090) vs 650W (GeForce RTX 4090 Mobile). Power connectors: 2x 8-pin vs Mobile. Card length: 312mm vs 0mm, occupying 3 vs 0 slots. Typical load temperature: 85°C vs 80°C.

Feature	GeForce RTX 3090	GeForce RTX 4090 Mobile
TDP	350W	120W-66%
Recommended PSU	750W	650W-13%
Power Connector	2x 8-pin	Mobile
Length	312mm	0mm
Height	140mm	0mm
Slots	3	0-100%
Temp (Load)	85°C	80°C-6%
Perf/Watt	76.0	225.4+197%