Unchained. Unrestrained. Unleashed. The Lenovo Legion Y920 Tower delivers up to an Intel® Core™ i7-7700K quad-core processer with a frequency of up to 4.2GHz – turbo-boosted to 4.5GHz or overclocked to 4.9Ghz – and up to 8MB of cache memory for high-octane, bottleneck-free gaming performance. And with One Key Turbo, available out of the box via the Lenovo Nerve Center, you can further boost performance with the push of a button.