Valve says every Steam Machine relies on single-channel DDR5 memory

Valve’s newly launched Steam Machine is an intriguing piece of hardware, but several factors may limit its impact on the gaming market. Chief among them is the ongoing memory shortage driven by the AI industry and expanding datacenter infrastructure, which has pushed DRAM and NAND prices significantly higher. As a result, Valve’s compact gaming system is more expensive than many expected and has also been affected from a performance standpoint.

According to Digital Foundry, and in an interview with Gamers Nexus, Valve engineers revealed that the Steam Machine was originally designed to ship with two 8GB DDR5 memory modules. However, by the time production ramped up, sourcing 8GB modules had become increasingly difficult. Memory manufacturers shifted production toward higher-capacity modules, which generate better margins during the ongoing DRAM shortage.

Although the Steam Machine supports dual-channel memory, every currently manufactured unit ships with only a single 16GB DDR5 module. This means the system operates in single-channel mode out of the box. While Valve engineer Yazan Aldehayyat reportedly stated that performance differences between a single 16GB stick and a dual-channel 2x8GB configuration are “pretty comparable,” dual-channel memory generally provides higher bandwidth and can deliver better performance in certain workloads.

The good news is that Valve has made upgrades straightforward. Users can install additional memory themselves, enabling dual-channel operation while also increasing total memory capacity. Valve has also confirmed support for larger M.2 SSD upgrades, allowing owners to expand storage as needed.

Adding a second memory module can improve overall system responsiveness and memory bandwidth, potentially boosting performance in some games and applications. However, the benefits will vary depending on the workload. Titles that are primarily limited by GPU performance are unlikely to see major gains from the memory upgrade alone.

For now, all Steam Machines rolling off production lines use the same hardware configuration, featuring a single 16GB DDR5 memory stick. Valve has stated that it currently has no plans to offer alternative memory configurations. That said, the company acknowledged that future supply chain developments could influence how later batches of the Steam Machine are assembled.

Ultimately, the Steam Machine’s launch highlights how broader industry trends are affecting consumer hardware. While the system remains upgradeable and capable, memory shortages have prevented Valve from delivering the configuration it originally intended.

As always, for the latest news on Steam hardware, Valve announcements, gaming handhelds, and developments across the PC gaming industry, be sure to follow our dedicated hardware coverage.