Reliable Online GPU Test Utility?

Hi everyone,

I’ve been trying to find a trustworthy GPU test utility online, and seems promising. It offers WebGL benchmark capabilities and real-time GPU analysis for various hardware setups. Their shader performance suite and volume shader analysis features caught my attention as well.

I’m particularly curious about the shader rendering benchmark results and whether it’s a good performance benchmark tool for developers or gamers. Has anyone used this site extensively? How accurate are the results compared to standard desktop benchmarks?