In the world of graphics cards, every now and then a project comes along that breaks out of the ordinary – such is the Fengpo RTX 3080 20GB. This modified version of the classic RTX 3080 doubles the VRAM capacity to 20GB and uses a powerful cooler originally designed for the PNY RTX 4090. In this article, we’ll take a look at the technical details, gaming performance, potential pitfalls, and compare it to the anticipated RTX 50 series.
Technical features of the Fengpo RTX 3080 20GB
The original RTX 3080 (10GB GDDR6X) is limited in demanding titles with high textures and resolutions. Fengpo took advantage of unused memory module positions on the board and added 10 1GB modules, bringing the total to 20GB GDDR6X. This opens up the possibility of smoother details, especially for 4K, streaming, or AI-related projects.
Cooler and power supply
For cooling , Fengpo chose a tri-slot heatsink originally designed for the PNY RTX 4090 (Verto model), which has a powerful design and better thermal performance. Also, the 12HPWR connector has been swapped to the “12V-2×6” variant, which indicates modifications in the power supply phase as well.
Fengpo RTX 3080 20GB specifications
The Fengpo RTX 3080 20GB is based on the original Ampere architecture and NVIDIA GA102 chip, but brings a major modification in the form of double the VRAM – 20GB GDDR6X. The memory modules are distributed on both sides of the PCB, allowing for more efficient heat dissipation and more stable performance under longer loads. The card retains a 320-bit memory bus, but thanks to the 20GB capacity, it can handle higher textures and detailed scenes without slowing down. Another interesting feature is the use of a massive three-fan heatsink from the PNY RTX 4090 Verto, giving it a premium look and quiet operation even at maximum performance.
| Specifications | Fengpo RTX 3080 20GB |
|---|---|
| Manufacturer | Shenzhen Chuangyu Cloud Intelligence |
| Brand | Fengpo |
| Chip | NVIDIA GA102 (same as standard RTX 3080) |
| Memory throughput | 760 GB/s |
| Memory chips | 20 × 1 GB modules located on both sides of the PCB |
| Memory | 20 GB GDDR6X |
| Memory bus | 320-bit (unchanged from original) |
| VRAM speed | 20 Gbps |
| Recommended PSU | 850 W |
| Consumption | 320 W |
| Performance in games | Significantly better in 4K and ultra textures, where the original 3080 hits a VRAM limit |
| Cooling | Three-fan cooler from the PNY RTX 4090 Verto |
| Power connector | modified from the original 12HPWR to a 12V-2×6 connector |
| Performance in 3DMark Time Spy | 10.9% vs. RTX 5060 Ti 16GB |
Performance in games and tests – what to expect?
In 3DMark Time Spy tests, the Fengpo RTX 3080 20GB achieved around 10.9% better performance than the RTX 5060 Ti 16GB, placing it somewhere in the more powerful mid-range of the new generations. While it doesn’t represent a revolutionary leap, it does show that the VRAM increase has a practical impact in demanding scenarios. In real-world gaming tests – Dying Light, for example – the card was particularly noticeable where the original RTX 3080 10GB ran up against memory limits at high 4K resolutions. Graphs posted on Chinese forums show higher FPS and smoother frame rates at 4K resolution, confirming the benefit of the additional 10GB of VRAM.
Can Fengpo RTX 3080 20GB compete with the new GPUs ?
Although Fengpo RTX 3080 20GB belongs to the older generation, it can surprise in some games. Its advantage lies in the double VRAM – 20GB GDDR6X. In titles with large textures or when playing in 4K resolution, it can hold more data directly in memory, which means smoother operation and fewer FPS drops.
Newer cards, such as those in the RTX 50 series, do offer more advanced architecture and technology than the DLSS 4, but if they have less memory, the Fengpo card can catch up in some situations. This is especially true for games that don’t take full advantage of these new technologies or are poorly optimized.
Simply put – where VRAM size, not architecture, is the deciding factor, the Fengpo RTX 3080 20GB still has a lot to offer. In 4K, at ultra detail and memory intensive titles, it can be a surprisingly strong contender even for newer GPUs.
Conclusion
The Fengpo RTX 3080 20GB is proof that even older architecture can get a second wind. Double VRAM and a robust heatsink allow it to keep up with mid-range new GPUs and even surprise in memory-intensive games. It’s not a revolution, but an interesting experiment that shows just how far the performance of the classic RTX 3080 can be pushed. For gamers looking for a reliable, high-detail 4K card without the need for the latest tech, the Fengpo RTX 3080 20GB may be an unexpected favorite but for now, you can only make them yourself.