CREATE TABLE table_26572 ("Processor" TEXT, "Brand name" TEXT, "Model  ( list ) " TEXT, "Cores" FLOAT, "L2 Cache" TEXT, "Socket" TEXT, "TDP" TEXT)

What is the brand name associated with the model named e4xxx?
SELECT "Brand name" FROM table_26572 WHERE "Model (list)" = 'E4xxx'
SELECT "Brand name" FROM "table_26572" WHERE "Model (list)" = 'E4xxx'