How The Coalition Optimized Gears of War: E-Day for Xbox Series S

The Coalition has revealed how they managed to get the visually demanding Gears of War: E-Day running smoothly on the Xbox Series S, despite the console’s hardware limitations. In a technical breakdown with Digital Foundry, studio technical director Kate Raynor explained that the team implemented a strategic memory management solution to bridge the gap between the Series S’s 10GB of RAM and the more robust 16GB found in the Xbox Series X.

Solving the RAM bottleneck

To ensure the game runs without major hitches, the developers leveraged the Xbox Series S’s internal SSD to act as an overflow for system memory. While offloading data to an SSD is a common practice in computing, it usually results in performance dips because storage drives are significantly slower than dedicated RAM. The Coalition mitigated this by meticulously choosing which data to swap. According to the studio, they prioritized keeping frequently accessed data in the faster system memory, while moving assets that weren’t required for immediate frame-by-frame rendering into the page file on the SSD.

Performance trade-offs

This technical workaround isn’t a “magic bullet” for every game, as the team noted that performance can degrade if the system is forced to swap data too frequently. To further stabilize the experience on the less powerful console, The Coalition also opted to adjust specific graphical settings, such as reducing Lumen reflections. By combining these smart memory management tactics with targeted graphical adjustments, the studio has managed to bring the latest entry in the franchise to Series S owners while maintaining a playable, high-fidelity experience.

Why it matters

For players on the Xbox Series S, this development is a significant win. It demonstrates that with high-level optimization, developers can push the smaller console to handle cutting-edge, demanding titles that might otherwise struggle with memory constraints. As games continue to increase in complexity, this “SSD as RAM” technique could provide a vital blueprint for other developers looking to maintain parity across the Xbox console family. While this doesn’t change the hardware specs of your console, it offers reassurance that the Series S remains a viable and capable machine for major exclusive titles, even as the bar for graphical fidelity continues to rise.