I might buy a second hd7570 but im wondering if it can crossfire and if so how?
Yes it can, but don't do it. Aside from the fact the 7570 is extremely weak, being only a quarter of the speed of the RX 550, not all games support multiple GPUs.
I can confirm that CrossFire works with two Radeon HD 7570s. (Please note, I am using two cards that are exactly the same; CrossFire may fail to work with two cards from two different manufacturers.)
You need a full-size ATX motherboard with at least two PCI-e 16x slots.
Download and install drivers ver. 15.7.1 from AMD's support website. Then go into the AMD Catalyst Control Center, click on Games and activate CrossFireX.
In 3DMark's Sky Diver benchmark, using one card I get a graphics score of 3254, using two cards in CrossFire configuration I get a graphics score of 5503. The CrossFire boost is typically around 60%. In other words, the results here are quite impressive.
Where do i plug in the crossfire cable can you send me a picture?
Only very few cards require the CrossFire cable. The Radeon HD 7570 does not require the cable.
You merely insert them into two PCI-e 16x slots, install the drivers, and there will be an option in the Catalyst software to enable CrossFire.
also how do i update the drivers to 15.7.1 i have the dell 7570
Follow this link:AMD Radeon™ HD 7570 Drivers & Support | AMD You need version 15.7.1 WHQL.
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