All objects with Mendocino chip
Intel's Mendocino, or second version of the Celeron, performaned better than the original Covington. Although it was basically the same processor, the new version did have 128KB L2-cache. Now the L2-cache even ran at full-speed which boosted performance. To avoid confusion Intel used the 'A' suffix for the 300MHz and 333MHz models.
Overclockers loved the new Celeron. Many 300MHz or 333MHz models could run at 373MHz or 416MHz which is quite a noticeable difference.