Sizing an FPGA

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I'm looking at picking an FPGA for a design, but don't want to go too far in overkill on the size/complexity of the FPGA. The core functionality that I would like for it to have:

• DRAM memory interface (16 bit data bus, no more than 64MB needed), SDRAM is preferred

• 2 16-bit counters

• Logic circuitry to gate certain events to occur at certain timer values.

I'm familiar with CPLD's, but have only used FPGA's for a limited number of projects.

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You can also refer to the product selector tool (https://www.altera.com/products/product-selector-guide.html) to assist in part selection.