Key information
Tom’s Hardware recently tested gaming performance on a modern PC running Windows 7 against Windows 11. Despite being 17 years old, Windows 7 remains a beloved operating system, though installing it on modern hardware presents significant challenges, including limited driver support and the necessity of slipstreaming NVMe and USB 3.0 drivers into the installation ISO.
The testing utilized an AMD AM5 platform with an RDNA 2 GPU. Because the platform lacks official Windows 7 chipset drivers and requires enabling CSM, researchers had to disable modern features like Resizable BAR. For Windows 11, they disabled VBS and HVCI to ensure a fair comparison, though they noted that Windows 11 uses a more advanced graphics driver codebase.
Results showed that Windows 7 often outperformed Windows 11 in CPU-limited scenarios, offering more consistent frame pacing and stronger 1% lows. Conversely, Windows 11 excelled in GPU-limited titles, benefiting from its more advanced driver architecture. In DirectX 9 games, Windows 7 held a significant advantage, as Windows 11 relies on the D3D9On12 mapping layer.
The authors concluded that while Windows 11 is optimized for modern, GPU-heavy gaming, it carries higher CPU overhead due to background services and telemetry. They suggested that Windows 11 could improve efficiency, as current results indicate performance remains untapped on the CPU side.
