I'm not well-versed in graphics card specs and these look pretty similar to the untrained eye, but are they?
https://www.newegg.com/Product/Product.aspx?Item=N82E16814137118
and
https://www.newegg.com/Product/Product.aspx?Item=N82E16814202280&cm_re=gddr5_8gb_256-_-14-202-280-_-Product
https://www.newegg.com/Product/Product.aspx?Item=N82E16814137118
and
https://www.newegg.com/Product/Product.aspx?Item=N82E16814202280&cm_re=gddr5_8gb_256-_-14-202-280-_-Product