AIDA64 - AIDA64 is a system information, diagnostics and benchmarking solution for Windows PC.
GSMArena - GSMArena is an online site that offers exhaustive and up and coming cell phone data.
3DMark - 3DMark includes everything you need to benchmark your hardware in one app.
NanoReview - Most advanced CPU and SoC comparison
UNIGINE Benchmarks - Put your PC under maximum load and measure how powerful it truly is!
Productz.com - Crowdsourced products database