AMD Radeon RX 6900 XT and Nvidia GeForce RTX 3090 are closely matched overall (within 1 point).
AMD Radeon RX 6900 XT stands out on Core Specifications Lithography Process: 7 nm.
Nvidia GeForce RTX 3090 counters with Core Specifications Base Power: 320 W, Core Specifications Maximum Power: 420 W, Memory Capacity: 24 GB.
AMD Radeon RX 6900 XT and Nvidia GeForce RTX 3090 are closely matched
$999 at launch
AMD Radeon RX 6900 XT
85
Nvidia GeForce RTX 3090
84
Where AMD Radeon RX 6900 XT stands out
Core Specifications Lithography Process: 7 nm
Where Nvidia GeForce RTX 3090 stands out
Core Specifications Base Power: 320 W
Core Specifications Maximum Power: 420 W
Memory Capacity: 24 GB
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 6900 XT
The AMD Radeon RX 6900 XT is an enthusiast-class graphics card powered by the Navi 21 graphics processor and equipped with 16GB of GDDR6 memory. Designed for high-end desktop gaming, it targets users looking for flagship performance to challenge Nvidia's top-tier RTX 3090 but at a lower initial price point. The card introduces hardware-based ray tracing capabilities alongside AMD's Smart Access Memory technology.
Best for High-framerate 1440p and 4K gaming in traditional rasterized titles where ray trBest for PC builders with compatible Ryzen processors looking to leverage Smart Access Me
Pros
Competitive traditional rasterization performance that closely matches the more expensive RTX 3090 in several titles
Lower launch price compared to competing flagship graphics cards from Nvidia
Performance advantages when utilizing Smart Access Memory on compatible AMD platforms
Solid thermal and acoustic performance on the reference cooler design
Cons
Disappointing ray-tracing performance compared to Nvidia's RTX 30-series competitors
Lacked a mature, widely supported DLSS competitor for image upscaling at launch
Video — reviews used (3)
Three detailed review videos covering real-world gaming benchmarks, ray tracing comparisons, power draw, and cooling efficiency.
Generated Jul 4, 2026
Nvidia GeForce RTX 3090
This is a high-end GPU utilizing the Ampere architecture, built for intensive visual computing tasks. Its advanced design caters to professionals in fields requiring extreme graphical fidelity, including rendering, scientific visualization, and complex model design.
Best for 3D Content CreationBest for Architectural VisualizationBest for Professional Rendering Workstations
Pros
Utilizes Ampere-based hardware, placing it among Nvidia's powerful lines of GPUs.
Supports features vital for modern computer graphics, such as ray tracing acceleration.
General support for multiple graphics APIs (e.g., OptiX and DXR) enables use in varied professional software suites.
Cons
Targeting high-end institutional or workstation needs suggests a focus away from typical mainstream consumer gaming
Its high-end nature implies significant power consumption requirements.
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
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Review Videos
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Detailed Specifications
The full spec sheet, side by side
Core Specifications
Feature
AMD Radeon RX 6900 XT
Nvidia GeForce RTX 3090
Base Frequency
2.015 GHz
1.395 GHz
Base Power
250 W
320 W
Maximum Frequency
2.245 GHz
1.86 GHz
Maximum Power
375 W
420 W
Lithography Process
7 nm
8 nm
Memory
Feature
AMD Radeon RX 6900 XT
Nvidia GeForce RTX 3090
Capacity
16 GB
24 GB
Technology
Bus Width
256 bit
384 bit
Bandwidth
576 GB/s
960 GB/s
Is Shared
No
No
API Support
Feature
AMD Radeon RX 6900 XT
Nvidia GeForce RTX 3090
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 6900 XT
Nvidia GeForce RTX 3090
Pixel Rate
180 GP/s
163.5 GP/s
Texture Rate
576 GT/s
489.6 GT/s
Performance (FP16)
46.1 TFLOPS
71 TFLOPS
Performance (FP32)
23 TFLOPS
35.6 TFLOPS
Performance (FP64)
1,440 GFLOPS
556 GFLOPS
Benchmark
Feature
AMD Radeon RX 6900 XT
Nvidia GeForce RTX 3090
G3D Mark
24,168
26,564
Miscellaneous
Feature
AMD Radeon RX 6900 XT
Nvidia GeForce RTX 3090
Release Date
December 8, 2020
September 24, 2020
Platform
Specification Note
Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.