ASIC device usually has much better mining performance than graphics card. It is more energy-saving and has a much higher hashrate.
The Bitmain Antminer S9i (14Th) was produced by Bitmain and released in 2018. This miner consumes 1320W, producing 14.0 Th/s of hashrate with the sha-256 algorithm, which makes this device almost (if not at all) useless. We do not recommend buying this device for mining nowadays.