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  3. /Nvidia GeForce RTX 4090 vs Nvidia GeForce RTX 3080 Mobile

Nvidia GeForce RTX 4090 vs Nvidia GeForce RTX 3080 Mobile

Verdict

Our overall take, at a glance

Key takeaways

  • Nvidia GeForce RTX 4090 leads Nvidia GeForce RTX 3080 Mobile overall by 48 points (86 vs 38 out of 100).
  • Nvidia GeForce RTX 4090 stands out on Core Specifications Base Power: 450 W, Core Specifications Maximum Power: 575 W, Core Specifications Lithography Process: 4 nm.
Nvidia GeForce RTX 4090 leads overall
Nvidia GeForce RTX 4090
86
Nvidia GeForce RTX 3080 Mobile
38
Why it stands out
  • Core Specifications Base Power: 450 W
  • Core Specifications Maximum Power: 575 W
  • Core Specifications Lithography Process: 4 nm

Strengths Profile

Bigger shape = stronger. Whoever reaches further wins that category.

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jun 2026.

Nvidia GeForce RTX 4090

The GeForce RTX 4090 is the flagship graphics card in Nvidia's consumer GPU family, succeeding the GeForce RTX 30 series. It is based on Nvidia's Ada Lovelace architecture and features third-generation RT cores and fourth-generation Tensor Cores for hardware acceleration.

Best for High-end graphics tasks
Pros
  • Features a TSMC 4N process designed by Nvidia
  • Includes three-generation Ray Tracing Cores for accelerated ray tracing
  • Supports OpenGL 4.6, Vulkan 1.4, and DirectX Direct3D 12.0 Ultimate APIs
  • Features dual NVENC with 8K 10-bit 120FPS AV1 fixed function hardware encoding
Cons
  • No NVLink support
  • Double-precision performance is 1/64 of single-precision performance
Video — reviews used (3)

Covers the release announcement and architecture details of the RTX 4090.

Generated Jun 28, 2026

Nvidia GeForce RTX 3080 Mobile

The Nvidia GeForce RTX 3080 Mobile is a powerful graphics processing unit designed for demanding laptops, enabling high-fidelity gaming and complex creative workflows on the go. Its performance architecture, based on Ampere, makes it suitable for users who require desktop-class GPU performance in portable form factors. It targets enthusiasts and professionals who prioritize graphical capabilities without sacrificing mobility.

Best for PC GamingBest for Content CreationBest for Portable Workstations
Pros
  • Delivers advanced graphics features through its RTX 30 series components.
  • Appropriate for tasks requiring high processing power, compared to lower-tier mobile GPUs.
  • Supports modern APIs such as Direct3D and Vulkan.
Cons
  • Performance is dependent on the specific laptop manufacturer's thermal design and power limits (Mobile GPU nature).
  • Older generation architecture relative to subsequent Nvidia releases.
Source
  • GeForce RTX 30 series - WikipediaProvided general information on the RTX 30 series components and architecture.

Generated Jun 28, 2026

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

Nvidia GeForce RTX 4090

Check Price on Amazon

Nvidia GeForce RTX 3080 Mobile

Check Price on Amazon

Performance

Higher benchmark score = faster

Nvidia GeForce RTX 409039,178
Nvidia GeForce RTX 3080 Mobile16,739
See the raw benchmark values →

Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature
Nvidia GeForce RTX 4090
Nvidia GeForce RTX 3080 Mobile
Base Frequency
2.23 GHz
1.41 GHz
Base Power
450 W
165 W
Maximum Frequency
2.52 GHz
1.86 GHz
Maximum Power
575 W
300 W
Lithography Process
4 nm
8 nm

Memory

Feature
Nvidia GeForce RTX 4090
Nvidia GeForce RTX 3080 Mobile
Capacity
24 GB
8 GB
Technology
Bus Width
384 bit
256 bit
Bandwidth
960 GB/s
576 GB/s
Is Shared
No
No

API Support

Feature
Nvidia GeForce RTX 4090
Nvidia GeForce RTX 3080 Mobile
DirectX Version
12
12
OpenGL Version
4.6
4.6
Vulkan Version
1.3
1.3
OpenCL Version
3
3

Theoretical Performance

Feature
Nvidia GeForce RTX 4090
Nvidia GeForce RTX 3080 Mobile
Pixel Rate
443.5 GP/s
148.3 GP/s
Texture Rate
1,290 GT/s
296.6 GT/s
Performance (FP16)
165.2 TFLOPS
18.98 TFLOPS
Performance (FP32)
82.6 TFLOPS
18.98 TFLOPS
Performance (FP64)
1,290 GFLOPS
296.6 GFLOPS

Benchmark

Feature
Nvidia GeForce RTX 4090
Nvidia GeForce RTX 3080 Mobile
G3D Mark
39,178
16,739

Miscellaneous

Feature
Nvidia GeForce RTX 4090
Nvidia GeForce RTX 3080 Mobile
Release Date
October 12, 2022
January 12, 2021
Platform

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

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