Performance
Corsair describes the Crystal Series 680X as a 'high airflow' solution, however we do wonder how much air the trio of front intakes are able to pull when sat behind a wall of tempered glass. CPU cooling performance on our test setup is good but not spectacular.
GPU cooling performance is solid - the Radeon graphics card only hit 70ºC toward the end of the benchmark - and we're attributing this to the close proximity of the front fans; they're sat roughly 65mm from the edge of our RX 580 graphics card.
Corsair's Crystal Series chassis sure do look pretty, but floating glass panels aren't the best way to contain noise, and as expected, the 680X is more audible than most of the cases in our line-up. Sound-dampening this enclosure is never going to be easy, but a quieter graphics card and a PWM-controlled rear exhaust would help quieten our build.