AMD Radeon HD 7990 vs Nvidia RTX 4090: A Comprehensive Comparison

AMD Radeon HD 7990 vs Nvidia RTX 4090

In the world of gaming, having a high-performance graphics card is crucial for achieving smooth and immersive gameplay. Two popular contenders in the market are the AMD Radeon HD 7990 and the Nvidia RTX 4090. Both cards offer exceptional capabilities and cater to different needs of gamers and professionals. In this article, we will delve into a detailed comparison between these two graphics cards, exploring their specifications, performance, features, and price points.

AMD Radeon HD 7990

The AMD Radeon HD 7990 is a powerful graphics card that was released several years ago. It features a dual-GPU design, combining two GPUs on a single card. This configuration allows for enhanced performance and the ability to handle demanding games and applications. The card offers a substantial amount of video memory, which ensures smooth gameplay even at high resolutions and graphic settings. The Radeon HD 7990 is known for its excellent multi-monitor support and is a popular choice among enthusiasts.
AMD Radeon HD 7990
View On Amazon   Read Customer Reviews

Nvidia RTX 4090

On the other hand, the Nvidia RTX 4090 is a cutting-edge graphics card that belongs to the latest generation of Nvidia’s lineup. It boasts advanced features and technologies, including ray tracing and artificial intelligence capabilities. The RTX 4090 is designed to deliver unparalleled gaming performance and is optimized for 4K and even 8K gaming. With its powerful architecture and dedicated hardware for real-time ray tracing, this card offers a visually stunning gaming experience.
Nvidia RTX 4090
View On Amazon   Read Customer Reviews


When comparing graphics cards, examining their specifications is crucial. Let’s take a closer look at the key specifications of both the AMD Radeon HD 7990 and the Nvidia RTX 4090.

AMD Radeon HD 7990 Specifications

  • GPU Architecture: Southern Islands
  • Stream Processors: 4096
  • Core Clock Speed: 950 MHz
  • Memory: 6GB GDDR5 (3GB per GPU)
  • Memory Bus: 384-bit (2x 192-bit)
  • TDP: 375W

Nvidia RTX 4090 Specifications

  • GPU Architecture: Ampere
  • CUDA Cores: 10752
  • Boost Clock Speed: 2040 MHz
  • Memory: 24GB GDDR6X
  • Memory Bus: 384-bit
  • TDP: 400W


In terms of performance, the Nvidia RTX 4090 outshines the AMD Radeon HD 7990. The RTX 4090’s superior architecture and higher number of CUDA cores result in significantly higher frame rates and smoother gameplay. Moreover, the RTX 4090’s dedicated ray tracing cores allow for realistic lighting and reflections, enhancing the visual quality of games that support this technology.

While the Radeon HD 7990 was a formidable card in its time, it falls behind in comparison to the RTX 4090’s raw performance. The AMD card may struggle to maintain high frame rates in modern, demanding games, especially at higher resolutions and graphic settings.


The AMD Radeon HD 7990 and Nvidia RTX 4090 differ in terms of features and technologies they offer.

AMD Radeon HD 7990 Features

  • CrossFireX support for multi-GPU configurations
  • Eyefinity technology for multi-monitor setups
  • DirectX 11 support
  • AMD HD3D for stereoscopic 3D gaming

Nvidia RTX 4090 Features

  • Ray tracing technology for realistic lighting and reflections
  • DLSS (Deep Learning Super Sampling) for improved performance and image quality
  • AI-enhanced features for games and applications
  • Hardware-accelerated encoding for streaming and content creation

The Nvidia RTX 4090 introduces advanced features that leverage artificial intelligence and real-time ray tracing, providing an immersive and visually stunning gaming experience.

Price and Value

When considering graphics cards, the price plays a significant role in decision-making. The AMD Radeon HD 7990 is an older card and can be found at a lower price point compared to the Nvidia RTX 4090. However, it’s important to note that the RTX 4090 offers superior performance, features, and future-proofing, which justify its higher price tag for gamers and professionals seeking cutting-edge technology.

User Experience

The user experience is an important aspect to consider when evaluating graphics cards. Both the AMD Radeon HD 7990 and Nvidia RTX 4090 provide excellent experiences, but with some differences.

The Radeon HD 7990 may require more tinkering and optimization to achieve the desired performance in modern games. Driver support and software updates may not be as frequent as with the newer Nvidia card, potentially impacting compatibility with the latest games and applications.

In contrast, the Nvidia RTX 4090 offers seamless user experience with regular driver updates, robust software support, and optimization for a wide range of games. The card is generally well-received by gamers and professionals for its ease of use and stability.


In conclusion, both the AMD Radeon HD 7990 and the Nvidia RTX 4090 are powerful graphics cards, but they cater to different audiences. The Radeon HD 7990 is a more affordable option for budget-conscious gamers or those who don’t require cutting-edge features. On the other hand, the Nvidia RTX 4090 is a top-of-the-line card that offers unmatched performance, advanced features, and future-proofing.

Ultimately, the choice between these two graphics cards depends on individual needs, budget, and preferences. Whether you prioritize raw performance, advanced features, or value for money, both the AMD Radeon HD 7990 and Nvidia RTX 4090 have their respective strengths.


1. Can the AMD Radeon HD 7990 run modern games? Yes, the Radeon HD 7990 can run modern games, but its performance may vary depending on the specific game and its optimization for older hardware.

2. Is the Nvidia RTX 4090 worth the price premium over the Radeon HD 7990? The Nvidia RTX 4090 offers cutting-edge technology, superior performance, and advanced features, making it worth the price premium for gamers and professionals seeking the best gaming experience.

3. Does the AMD Radeon HD 7990 support ray tracing? No, the AMD Radeon HD 7990 does not support ray tracing technology. It predates the introduction of this feature in modern graphics cards.

4. Can the Nvidia RTX 4090 handle 8K gaming? Yes, the Nvidia RTX 4090 is optimized for 8K gaming, thanks to its powerful architecture and hardware capabilities.

5. Which graphics card is better for multi-monitor setups? The AMD Radeon HD 7990, with its Eyefinity technology, provides excellent support for multi-monitor setups, allowing for immersive gaming and enhanced productivity.


No comments yet. Why don’t you start the discussion?

Leave a Reply

Your email address will not be published. Required fields are marked *