Like Unigine Valley, the NVIDIA GeForce 700 series results were leaning slightly in favor of Windows 8.1 over the SteamOS 1.0 Beta results on its launch weekend.
The GpuTest results between the Windows and Linux graphics drivers always tend to be mixed and it was again this time, but is hard to interpreter due to the its closed-source graphics testing software.
Overall, the SteamOS vs. Windows 8.1 results aren't too far removed from other Linux vs. Windows NVIDIA GeForce graphics card benchmarking results delivered in the past on Phoronix. Generally the NVIDIA Linux graphics driver can deliver comparable performance to that of the Windows GeForce driver due to the largely shared code-base between platforms, which again is the case here with SteamOS just being a derivative of Debian Linux. Stay tuned for further performance analysis in the days ahead on Phoronix. If you appreciate this extensive testing done at Phoronix please subscribe to Phoronix Premium or consider a PayPal tip this holiday season.