Do Altera have something similar to Zync?
Stratix 10 SX SoCs feature hard processor system with 64 bit quad-core ARM Cortex-A53 processor available in all densities in addition to all the features of Stratix 10 GX devices.
You can get affordable Cyclone V FPGA/ARM boards though, which are more comparable to the traditional "Zynq" series (dual ~1ghz 32bit cores, some DDR3, etc).
These's a bunch of affordable Cyclone V SoC development boards: http://www.terasic.com.tw/attachment/archive/836/image/compa...