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  3. /AMD Radeon RX 7900 XT vs Nvidia GeForce RTX 4090 Mobile

AMD Radeon RX 7900 XT vs Nvidia GeForce RTX 4090 Mobile

Verdict

Our overall take, at a glance

Key takeaways

  • Nvidia GeForce RTX 4090 Mobile and AMD Radeon RX 7900 XT are closely matched overall (within 1 point).
  • Nvidia GeForce RTX 4090 Mobile stands out on Core Specifications Lithography Process: 4 nm, Memory Capacity: 24 GB, Benchmark G3D Mark: 30,798.
  • AMD Radeon RX 7900 XT counters with Core Specifications Base Power: 380 W, Core Specifications Maximum Power: 520 W, Memory Bandwidth: 960 GB/s.
Nvidia GeForce RTX 4090 Mobile and AMD Radeon RX 7900 XT are closely matched
Nvidia GeForce RTX 4090 Mobile
67
AMD Radeon RX 7900 XT
66
Where Nvidia GeForce RTX 4090 Mobile stands out
  • Core Specifications Lithography Process: 4 nm
  • Memory Capacity: 24 GB
  • Benchmark G3D Mark: 30,798
Where AMD Radeon RX 7900 XT stands out
  • Core Specifications Base Power: 380 W
  • Core Specifications Maximum Power: 520 W
  • Memory Bandwidth: 960 GB/s

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 Jul 2026.

AMD Radeon RX 7900 XT

The AMD Radeon RX 7900 XT is an enthusiast-class graphics card powered by the Navi 31 XT processor, utilizing an innovative chiplet-based RDNA 3 architecture. It is designed for PC gamers and creators seeking top-tier rendering capabilities without paying the premium commanded by ultra-enthusiast competitor models. The card delivers high-resolution performance and features modern video encoding along with updated connectivity standards.

Best for High-refresh-rate 1440p and 4K gaming where raw rasterization performance is priBest for Enthusiast builders looking for high-end GPU performance at a relatively lower p
Pros
  • Strong rasterization performance in high-refresh 1440p and 4K gaming
  • More competitive pricing compared to rival high-end GPUs like the RTX 4080
  • Incorporation of DisplayPort 2.1 to support next-generation monitors
  • Innovative chiplet design that optimizes GPU manufacturing efficiency
Cons
  • Ray tracing performance lags significantly behind flagship offerings from the competition
  • High idle power consumption and early firmware anomalies
  • DisplayPort 2.1 implementation lacks support for full UHBR20 bandwidth
Official
  • Official product pageProvided brand technologies such as FSR, FreeSync, and Adrenalin software details.
Source
  • Wikidata: Radeon RX 7900 XTSupplied the Navi 31 XT GPU codename identification.
  • Radeon - WikipediaDocumented the RDNA 3 architecture generation of the Radeon series.
Video — reviews used (3)

Evaluated real-world gaming performance, ray tracing limitations, idle power consumption, and DisplayPort 2.1 specifications.

Generated Jul 4, 2026

Nvidia GeForce RTX 4090 Mobile

The GeForce RTX 40 series includes GPUs manufactured by Nvidia that succeeded models from the previous generation. These graphics processing units are based on the Ada Lovelace architecture, featuring third-generation RT cores for ray tracing and fourth-generation Tensor Cores.

Best for high performance computing
Pros
  • Utilizes the Ada Lovelace architecture
  • Supports features like Optical Flow Accelerator for DLSS 3.0 frame generation
Source
  • GeForce RTX 40 series - WikipediaOverview of the RTX 40 series, addressing its architecture and initial models.
Video — reviews used (2)

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.

AMD Radeon RX 7900 XT

Check Price on Amazon

Nvidia GeForce RTX 4090 Mobile

Check Price on Amazon

Performance

Higher benchmark score = faster

AMD Radeon RX 7900 XT29,500
Nvidia GeForce RTX 4090 Mobile30,798
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
AMD Radeon RX 7900 XT
Nvidia GeForce RTX 4090 Mobile
Base Frequency
2 GHz
2.22 GHz
Base Power
380 W
320 W
Maximum Frequency
2.4 GHz
2.52 GHz
Maximum Power
520 W
460 W
Lithography Process
5 nm
4 nm

Memory

Feature
AMD Radeon RX 7900 XT
Nvidia GeForce RTX 4090 Mobile
Capacity
20 GB
24 GB
Technology
Bus Width
320 bit
384 bit
Bandwidth
960 GB/s
912 GB/s
Is Shared
No
No

API Support

Feature
AMD Radeon RX 7900 XT
Nvidia GeForce RTX 4090 Mobile
DirectX Version
12
12
OpenGL Version
4.6
4.6
Vulkan Version
1.3
1.3
OpenCL Version
2
3

Theoretical Performance

Feature
AMD Radeon RX 7900 XT
Nvidia GeForce RTX 4090 Mobile
Pixel Rate
268.8 GP/s
189.8 GP/s
Texture Rate
672 GT/s
515.3 GT/s
Performance (FP16)
103.7 TFLOPS
32.98 TFLOPS
Performance (FP32)
51.5 TFLOPS
32.98 TFLOPS
Performance (FP64)
1,610.3 GFLOPS
515.3 GFLOPS

Benchmark

Feature
AMD Radeon RX 7900 XT
Nvidia GeForce RTX 4090 Mobile
G3D Mark
29,500
30,798

Miscellaneous

Feature
AMD Radeon RX 7900 XT
Nvidia GeForce RTX 4090 Mobile
Release Date
December 13, 2022
January 3, 2023
Platform

Specification Note

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

LET'S
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Quick Links

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© 2026 Let's Compare. All rights reserved.

A project by saygiselim.dev

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