Difference between these r9 280s?

Phil923

Distinguished
Hey forums, I am building a 1080p LAN machine and just wanted to ask what the difference between these two 280s are. They seem to have identical specs, but different product codes. Also, one is $5 more. Thanks

http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007709%2050001561%20600489223&IsNodeId=1&Manufactory=1561&bop=And&CompareItemList=48%7C14-202-112%5E14-202-112-TS%2C14-202-099%5E14-202-099-TS&percm=14-202-112%3A%24%24%24%24%24%24%24%3B14-202-099%3A%24%24%24%24%24%24%24

Phil