They would both be relatively equal. If you don't have a johnson controls box (or something equivalent) and a fermenting fridge, you can make a mini swamp cooler. Just take a keg bucket and fill with water to about the same level as your 5 gallons. Then take a t-shirt and cover your bucket. Next, add frozen water bottles to the water (you may have to change these out pretty frequently. You can also put a fan on the bucket as well to lower a few more degrees. All of these together can lower your temp by about 10 degrees.
What do you keep your air conditioning at?