NVIDIA GeForce RTX 5090 To Feature 28 GB GDDR7 Memory

NVIDIA GeForce RTX 5090: The Cut-Down GB202 GPU

Introduction

The NVIDIA GeForce RTX 5090 is generating quite a buzz in the tech community. According to recent rumors, this graphics card will feature a cut-down GB202 GPU with some intriguing specifications. Let’s break it down:

1. GPU Architecture: The GB202 GPU, codenamed “Blackwell,” is expected to be the heart of the RTX 5090. Unlike previous GPUs that relied on multiple dies, the GB202 will be physically monolithic—a single, powerful chip.

2. SMs and Cores: While the fully enabled GB202 boasts 192 Streaming Multiprocessors (SMs), the RTX 5090 will feature a slightly cut-down configuration. The exact number of SMs remains speculative, but it’s likely to be around 144 SMs.

3. Memory Interface: Here’s where things get interesting. The RTX 5090 will sport a 448-bit memory bus interface, which is narrower than the full 512-bit interface found in the GB202. This translates to up to 28 GB of GDDR7 memory. For comparison, the RTX 4090 (officially released) features a 384-bit bus and 24 GB of GDDR6X memory.

4. Memory Modules: The RTX 5090 will house 14 GDDR7 memory modules, while the full GB202 configuration supports up to 16 modules (32 GB). These memory modules are expected to run at 28 Gbps, providing impressive bandwidth.

5. Bandwidth: With the 448-bit bus and 28 Gbps modules, the RTX 5090 could achieve a whopping 1568 GB/s of memory bandwidth. This represents a significant improvement over the RTX 4090’s 384-bit bus at 21 Gbps.

Implications and Speculation

• Performance: Despite the cut-down specs, the RTX 5090 is likely to deliver exceptional gaming performance. The combination of a powerful GPU core and ample memory bandwidth promises smooth gameplay at high resolutions.

• Thermal and Power Constraints: The decision to go with a 448-bit bus might be driven by thermal and power considerations. A 512-bit interface would have provided even more bandwidth but could push the card’s limits in terms of heat and power consumption.

• Future Models: The RTX 5090’s configuration leaves room for future models. We might see variants with the full 512-bit bus and 32 GB of memory, catering to enthusiasts and professionals.

Conclusion

While we eagerly await NVIDIA’s official announcement, the RTX 5090 promises to be an exciting addition to the gaming landscape. As a tech journalist, I’ll keep my eyes peeled for any updates and benchmarks. Stay tuned for more details on this intriguing GPU!

Remember, these details are based on rumors and leaks, so take them with a grain of salt. But hey, speculation is part of the fun in the tech world! 🚀🎮💡