
GeForce RTX 4090 Vs RX 7900 XTX – Check Which One Is Best & Why?
GeForce RTX 4090 & RX 7900 XTX share many similarities, but there are also important differences, such as quality, performance, features, and connectivity. If you want the best one between them, I Would recommend the RTX 4090 rather than the RX 7900 XTX.
Why Do I Recommend The GeForce RTX 4090?
- The Nvidia RTX 4090 is built on Ada Lovelace for advanced ray tracing, AI workloads, and DLSS support, while The AMD RX 7900 XTX uses the RDNA 3 architecture.
- Geforce RTX 4090’s 16,384 CUDA cores boost in processing power for smooth frame rates, rendering large scenes, executing complex simulations & efficiently handling multiple tasks at once compared to the RX 7900 XTX’s 6144.
- Its 24 GB of GDDR6X memory & 1,008 GB/s bandwidth significantly handle large datasets, 3D rendering, and 8K video editing, whereas the RX 7900 XTX’s 960 GB/s may struggle.
- Nvidia RTX 4090’s 128 Ray Tracing cores and 512 Tensor Cores give it a substantial edge in ray-traced gaming and AI-driven tasks (e.g., DLSS). In contrast, the RX 7900 XTX has 84 Ray Accelerators & mo Tensor Cores.
- The RTX 4090 has 33.75 TFLOPS higher floating-point, which translates into superior computational power for handling complex tasks such as deep learning, AI, and gaming compared RX 7900 XTX.
- It has 1290 GTexels/s texture fillrate, providing significantly faster texture processing capability for rendering detailed scenes, high-resolution textures, and graphical applications, while RX 7900 XTX has 960 GTexels/s.
Maybe the RX 7900 XTX price can make you comfortable because it’s a little bit cheaper than the RTX 4090. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.
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Side By Side Comparison
Feature | GeForce RTX 4090 | AMD RX 7900 XTX |
GPU Architecture | Ada Lovelace (TSMC 4N) | RDNA 3 |
Manufacturing Process | 4nm monolithic architecture | Dual-chiplet design |
Base Clock | 2,235 MHz | 1,850 MHz |
Boost Clock | 2,520 MHz | 2,500 MHz |
Effective Memory Speed | 21 Gbps GDDR6X | 20 Gbps GDDR6 |
Memory Bandwidth | 1,008 GB/s | 960 GB/s |
Memory Bus Width | 384-bit | 384-bit |
Die Size | 608 mm² | 522 mm² (with dual-chiplet design) |
Transistor Count | 76 billion | 58 billion |
CUDA Cores / Stream Processors | 16,384 CUDA Cores | 6,144 Stream Processors (SPs) |
RT Cores | 128 Ray Tracing Cores | 84 Ray Accelerators |
Tensor Cores | 512 Tensor Cores | N/A (No Tensor Cores) |
AI Performance | Dedicated AI capabilities (Tensor Cores for DLSS 3.0) | Limited AI Capabilities |
Ray Tracing Support | Yes, highly efficient with dedicated RT Cores | Yes, but less efficient |
VRAM Type | GDDR6X | GDDR6 |
Thermal Design Power (TDP) | 450W | 355W |
Recommended PSU | 1,000W | 850W |
Max GPU Temp | 90°C (GPU Temp) | 110°C (Junction Temp) |
Power Connectors | 16-pin PCIe 5.0 (12VHPWR) | Dual 8-pin |
Cooling Solutions | Advanced cooling with vapor chamber | Standard triple-fan |
Display Outputs | 3 x DisplayPort 1.4a, 1 x HDMI 2.1 | 2 x DisplayPort 2.1, 1 x HDMI 2.1, 1 x USB-C |
DLSS/FSR Support | DLSS 3.0 | FSR 2.0 |
Resolution Performance | Ideal for 4K and 8K gaming | Best suited for 4K gaming |
Ray Tracing Performance | Industry-leading ray tracing performance | Decent |
AI Upscaling | DLSS 3.0 | FSR 2.0 |
4K Gaming Performance | Superior overall performance | Excellent in rasterization |
8K Gaming | Fully capable with DLSS 8K support | Moderate to limited |
VR Performance | Optimized for VR with superior AI processing | Good, but lacks AI optimization |
Compute Performance | Superior for AI, deep learning, and creative tasks | Strong for general workloads |
Price | Check RTX 4090 Price | Check RX 7900 Price |
What Common Both Can Do?
- VRAM Capacity (24 GB): Both the AMD RX 7900 XTX and Nvidia RTX 4090 are equipped with 24 GB of video memory. This amount of VRAM is optimal for 4K gaming, video editing, and graphically intense workloads. It ensures that large textures, high-resolution assets, and demanding applications can run smoothly without bottlenecks.
- Memory Bus Width and Bandwidth: Both GPUs have a 384-bit memory bus, which allows for high bandwidth and efficient data transfer between the VRAM and the GPU. The RX 7900 XTX has a bandwidth of 960 GB/s, while the RTX 4090 is slightly higher at 1,008 GB/s, but both are in the top tier for graphics cards, allowing for seamless 4K and 8K gaming.
- PCIe 4.0 Interface: Both GPUs support PCIe 4.0, which provides faster data transfer speeds compared to previous generations. This is especially important for gaming and content creation workloads, where data is transferred between the GPU and other components, such as storage or CPUs. While PCIe 5.0 is emerging, PCIe 4.0 remains the current standard, with plenty of bandwidth for both cards.
- Ray Tracing Support: Both cards support hardware-accelerated ray tracing, allowing for realistic lighting, shadows, and reflections in games. While Nvidia has more dedicated RT Cores, the RX 7900 XTX still offers ray tracing capabilities with Ray Accelerators, making it capable of running ray-traced games, albeit not as efficiently as the RTX 4090.
- DirectX 12 Ultimate: Both GPUs are DirectX 12 Ultimate compliant, meaning they support the latest features and standards for gaming and rendering. This includes support for ray tracing, variable rate shading, and other advanced graphical techniques, ensuring next-gen gaming performance on both cards.
- 8K Gaming Capabilities: Both the RX 7900 XTX and RTX 4090 are marketed as 8K-capable GPUs, though achieving smooth 8K performance may require compromises on settings or reliance on AI-based upscaling technologies like DLSS or FSR. Both cards can run 8K content, making them suitable for high–resolution gaming or professional editing.
- DisplayPort and HDMI Versions: Both cards feature modern DisplayPort and HDMI outputs, with HDMI 2.1 on both, ensuring support for the latest display technologies, including 4K at 120Hz or 8K at 60Hz. While the RX 7900 XTX includes DisplayPort 2.1, the RTX 4090 uses DisplayPort 1.4a, but both offer high refresh rates and resolutions for gaming and professional displays.
- Cooling Designs: Both GPUs come with triple-fan cooling solutions or similar aftermarket variants. This robust cooling design is necessary for these high-power GPUs, which generate a significant amount of heat during intense gaming or creative workloads. Aftermarket custom variants with enhanced cooling are also available for both cards.
- High Power Requirements: Both the RX 7900 XTX and RTX 4090 require high-power PSUs (850W+ for RX 7900 XTX, 1,000W+ for RTX 4090) due to their power-hungry nature. This means that users must ensure their systems are equipped with sufficient power supplies to avoid performance throttling or system instability.
- Form Factor: Both cards are large, typically triple-slot designs, which means they require spacious cases and proper airflow. Gamers and creators using smaller cases will need to ensure their builds have enough room to accommodate these larger GPUs.
- Gaming Focus: Both the RX 7900 XTX and RTX 4090 are designed with a focus on high-performance gaming, particularly at 4K and beyond. They target enthusiast gamers and professionals who demand the best graphical fidelity and performance in the latest titles.
- Multi-Display Support: Both GPUs support multi-display setups (up to 4 displays), making them ideal for users who need to connect multiple monitors for productivity, simultaneous gaming, or content creation workflows.
- Real-Time Ray Tracing (RT): Both cards are capable of real-time ray tracing, a technology that simulates how light interacts with objects in the game environment, creating more realistic shadows, reflections, and lighting effects. While Nvidia has a performance lead with its RT Cores, AMD’s Ray Accelerators still provide real-time ray tracing performance, offering this feature in modern games.
- VR Compatibility: Both cards are fully compatible with VR platforms like Oculus, Valve Index, and HTC Vive. The large VRAM capacity, high processing power, and smooth performance at high resolutions ensure that both GPUs are capable of delivering an immersive VR gaming experience.
- Gaming API Support: Both GPUs support Vulkan, OpenGL, and DirectX gaming APIs. This ensures broad compatibility with a wide variety of modern and upcoming games, providing users flexibility no matter which gaming titles they play.
- AI-based Enhancements: Both cards support AI-based enhancements for gaming performance. The RX 7900 XTX supports FSR 2.0 (FidelityFX Super Resolution), which can upscale images for better performance in supported games. The RTX 4090 has DLSS 3.0 (Deep Learning Super Sampling), which uses AI to upscale lower-resolution images, improving performance while maintaining quality.
Common Features
Feature | GeForce RTX 4090 | RX 7900 XTX |
VRAM Capacity | 24 GB GDDR6 | 24 GB GDDR6X |
Memory Bus Width | 384-bit | 384-bit |
GPU Interface | PCIe 4.0 | PCIe 4.0 |
Ray Tracing Support | Yes | Yes |
DirectX Support | DirectX 12 Ultimate | DirectX 12 Ultimate |
Max Resolution | 8K (7680 x 4320) | 8K (7680 x 4320) |
HDMI Version | HDMI 2.1 | HDMI 2.1 |
Cooling Design | Triple-fan | Triple-fan |
Form Factor | Large, triple-slot design | Large, triple-slot design |
Gaming Focus | Designed for high-performance gaming | Designed for high-performance gaming |
8K Gaming Support | Capable of 8K gaming in certain titles | Capable of 8K gaming in certain titles |
Ray Tracing Capabilities | Supports hardware-accelerated ray tracing | Supports hardware-accelerated ray tracing |
Architecture Goal | Efficiency and performance balance | Efficiency and performance balance |
VR Compatibility | Fully compatible with VR platforms | Fully compatible with VR platforms |
Power Efficiency Features | Various power efficiency optimizations | Various power efficiency optimizations |
Multi-Display Support | Yes, multi-display support (up to 4) | Yes, multi-display support (up to 4) |
Gaming API Support | Vulkan, OpenGL, DirectX | Vulkan, OpenGL, DirectX |
4K Gaming Focus | Designed for 4K gaming performance | Designed for 4K gaming performance |
Real-Time Ray Tracing (RT) | Yes, with hardware support | Yes, with hardware support |
Price | Check RTX 4090 Price | Check RX 7900 Price |
FAQ
1. Do the RX 7900 XTX and RTX 4090 both have the same amount of VRAM?
Yes, both the AMD RX 7900 XTX and the Nvidia RTX 4090 come equipped with 24 GB of VRAM. This large VRAM capacity is designed to handle demanding tasks such as 4K and 8K gaming, video editing, and heavy workloads that require large amounts of graphical memory. 2. Is the memory bus width the same for both the RX 7900 XTX and RTX 4090? Yes, both cards have a 384-bit memory bus. The wide bus width allows for efficient data transfer between the VRAM and the GPU, which is especially important for high–resolution gaming and content creation tasks. 3. Do both the RX 7900 XTX and RTX 4090 support ray tracing? Yes, both the RX 7900 XTX and RTX 4090 support hardware-accelerated ray tracing. The RTX 4090 uses RT Cores, while the RX 7900 XTX has Ray Accelerators. Although both cards can handle ray tracing, the RTX 4090 has better performance in ray-traced games due to more advanced dedicated hardware for this task. 4. What gaming resolutions are supported by both the RX 7900 XTX and RTX 4090? Both the RX 7900 XTX and RTX 4090 are capable of 4K and 8K gaming. They are designed to handle ultra-high resolutions with sufficient performance, though achieving 8K gaming may require the use of AI upscaling technologies like DLSS (for the RTX 4090) or FSR (for the RX 7900 XTX). 5. Do the RX 7900 XTX and RTX 4090 have the same PCIe interface? Yes, both the RX 7900 XTX and RTX 4090 use PCIe 4.0. This interface ensures fast data transfer speeds between the GPU and the rest of the system, which is essential for demanding tasks like gaming and 3D rendering. 6. Are both GPUs capable of supporting multiple displays? Yes, both the RX 7900 XTX and RTX 4090 support multi-display setups, allowing you to connect up to four displays. This feature is ideal for users who need to work with multiple monitors for productivity or enjoy immersive gaming with multi-screen setups. 7. Do both GPUs support HDMI 2.1 and DisplayPort outputs? Yes, both cards support HDMI 2.1, which allows for 4K at 120Hz or 8K at 60Hz. The RX 7900 XTX features DisplayPort 2.1, while the RTX 4090 uses DisplayPort 1.4a, but both support high refresh rates and resolutions on modern displays. 8. Are the RX 7900 XTX and RTX 4090 optimized for VR gaming? Yes, both GPUs are fully compatible with VR platforms like Oculus, Valve Index, and HTC Vive. With their large VRAM and high-performance cores, both cards can deliver smooth and immersive VR experiences. 9. Do both cards offer AI-based performance enhancements for gaming? Yes, both the RX 7900 XTX and RTX 4090 have AI-based performance enhancement technologies. The RX 7900 XTX supports FSR 2.0 (FidelityFX Super Resolution), and the RTX 4090 supports DLSS 3.0 (Deep Learning Super Sampling). These technologies upscale lower-resolution images for higher frame rates without significant loss in visual quality, although DLSS is considered more advanced due to its AI-driven nature. 10. Do both GPUs have high power requirements? Yes, both cards have high power requirements. The RX 7900 XTX requires at least an 850W PSU, while the RTX 4090 recommends a 1,000W PSU due to its higher TDP. Users need to ensure that their power supplies can handle the load for stable performance. 11. Are there aftermarket variants available for both the RX 7900 XTX and RTX 4090? Yes, both GPUs are available in aftermarket variants with custom cooling solutions. These include triple-fan designs, vapor chambers, and even water-cooled options for users who want improved thermal performance and overclocking potential. 12. Do both GPUs support DirectX 12 Ultimate? Yes, both the RX 7900 XTX and RTX 4090 fully support DirectX 12 Ultimate, which includes advanced gaming features like ray tracing, variable rate shading, and mesh shaders. This ensures that both cards are future-proof for the latest AAA gaming titles. 13. Do both the RX 7900 XTX and RTX 4090 offer strong 4K gaming performance? Yes, both cards are excellent choices for 4K gaming. While the RTX 4090 may have an edge in ray-traced games or titles that support DLSS, the RX 7900 XTX performs exceptionally well in rasterized games, delivering high frame rates in 4K. 14. Do both cards support modern gaming APIs like Vulkan and OpenGL? Yes, both the RX 7900 XTX and RTX 4090 support a wide range of modern gaming APIs, including Vulkan, OpenGL, and DirectX. This ensures that they are compatible with virtually all gaming titles and software used by developers. |