Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Code name | Brand name | Model (list) | Frequency | Cores/Threads | Max Memory Speed |
| --- | --- | --- | --- | --- | --- |
| Lynnfield | Core i5 | i5-7xx | 2.66-2.8GHz | 4/4 | DDR3-1333 |
| Lynnfield | Core i7 | i7-8xx | 2.8-3.07GHz | 4/8 | DDR3-1333 |
| Lynnfield | Xeon | L34xx | 1.86GHz | 4/4 or 4/8 | DDR3-1333 |
| Lynnfield | Xeon | X34xx | 2.4-2.93GHz | 4/4 or 4/8 | DDR3-1333 |
| Clarkdale | Celeron | G1xxx | 2.26GHz | 2/2 | DDR3-1066 |
| Clarkdale | Pentium | G6xxx | 2.80GHz | 2/2 | DDR3-1066 |
| Clarkdale | Core i3 | i3-5xx | 2.93-3.2GHz | 2/4 | DDR3-1333 |
Question:
List the number of cores for ddr3-1333 with frequencies between 2.66-2.8ghz.
Answer:
4/4