Back in 2007, the game "Crysis" brought every single hardware setup to it's knees.

Nowadays, a single flagship GPU like the GTX 680/HD 7970 can smoothly run Crysis on it's maximum settings and resolutions.

When is the next PC title that will make today's fastest PC's sweat and cry?

I heard a rumor that "Metro 2034" is going to benchmark the new hardware and give it a run for it's money.

Also, the PC port of Grand Theft Auto 5 will test systems to their limits.