The AMD Radeon RX 9070 XT promises to dethrone the previous 1440p AMD GPU, the Radeon RX 7900 XT, despite having lower VRAM, but can it?

The Radeon RX 9070 XT is AMD’s best GPU in the generation and comes with 16GB of memory, which is less than its predecessor, the Radeon 7900 XT, which had 20GB of VRAM. This begs the question: Can the new AMD GPU with less memory beat its predecessor? Well, AMD certainly believes it can. That’s why we will compare the two graphics cards using real-world game benchmarks to find out which is actually better. Read on to learn more.
Note: The article is subjective and reflects the writer’s opinion.
Radeon RX 9070 XT 16GB vs Radeon RX 7900 XT 20GB: Detailed Comparison

The AMD Radeon RX 9070 XT 16GB was released in 2025 and is based on the latest RDNA 4 architecture. On the other hand, the Radeon RX 7900 XT 20GB was launched in 2022 and is designed on the older RDNA 3 architecture. Before we begin comparing them, let’s look at their specs to better understand what they are capable of.
Specs Comparison
Here are the specs of Radeon RX 9070 XT 16GB vs Radeon RX 7900 XT 20GB:
Specifications | AMD Radeon RX 9070 XT 16GB | AMD Radeon RX 7900 XT 20GB |
Architecture | RDNA 4 | RDNA 3 |
Shader cores | 4096 | 5376 |
RT cores | 64 | 84 |
TMUs | 256 | 336 |
ROPs | 128 | 192 |
Base core clock speed | 1660 MHz | 1387 MHz |
Boost core clock speed | 2970 MHz | 2394 MHz |
Memory capacity | 16 GB GDDR6 | 20 GB GDDR6 |
Memory bus width | 256-bit | 320-bit |
Memory bandwidth | 644.6 GB/s | 800 GB/s |
Manufacturing node | 4 nm | 5nm, 6nm |
Thermal design power (TDPs) | 304W | 300W |
The Radeon RX 9070 XT 16GB has fewer shader cores, less memory, and lower memory bandwidth compared to the Radeon RX 7900 XT. However, as we know, specs do not always reflect real-world gaming performance. Besides, the former is built on the newer RDNA 4 architecture, which brings many improvements. Therefore, we should look at the actual gaming benchmarks to find out which is better.
Performance Benchmarks
Here’s how the Radeon RX 9070 XT 16GB vs Radeon RX 7900 XT 20GB performs practically in games:
Games | AMD Radeon RX 9070 XT 16GB | AMD Radeon RX 7900 XT 20GB |
Cyberpunk 2077 (RT) | 51 FPS | 39 FPS |
Indiana Jones and The Great Circle | 104 FPS | 103 FPS |
Silent Hill 2 | 66 FPS | 62 FPS |
Horizon Forbidden West | 121 FPS | 105 FPS |
God of War Ragnarok | 106 FPS | 91 FPS |
Ghost of Tsushima | 126 FPS | 116 FPS |
Note: The two GPUs were tested at 1440p resolution with High/Ultra settings unless mentioned otherwise. All the FPS numbers were sourced from the Daniel Owen channel on YouTube. For the tests, both graphics cards were paired with a Ryzen 7 9800X3D CPU.
The AMD Radeon RX 9070 XT 16GB performed better than the Radeon RX 7900 XT 20GB in every tested game. The former is about 11.2% faster than the latter across the six games tested. The Radeon RX 9070 XT 16GB also performed significantly better in Cyberpunk 2077 with ray tracing enabled. AMD mentioned that the new Radeon GPU was substantially better in ray tracing, and it shows.
Price Comparison
The Radeon RX 9070 XT 16GB was originally launched at $599, but it is currently available at an inflated $719.99. On the other hand, the Radeon RX 7900 XT launched at $899 but is priced at around $646 on Amazon.
Final Verdict on Radeon RX 9070 XT 16GB and Radeon RX 7900 XT 20GB

The Radeon RX 9070 XT 16GB is a better GPU despite having lower memory. It is faster in both rasterization and ray tracing compared to the Radeon RX 7900 XT. The latter has an advantage with higher memory, which is only going to be useful in AI applications.
When gaming at 1440p, the 16GB memory of the Radeon RX 9070 XT is more than enough. Besides, it also supports the FSR 4 upscaler, which is a major improvement over FSR 3. Unfortunately, the Radeon RX 7900 XT does not support FSR 4. This matters to gamers, which is why we recommend the Radeon RX 9070 XT, despite its lower memory and higher price tag.
Gamers should choose the AMD Radeon RX 9070 XT, while AI programmers can go for the older Radeon RX 7900 XT.
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