You can purchase RAM with a specific CAS for your computer. CAS is expressed as a single number which denotes latency in clock cycles. For eg: you can get DDR3 RAM with CAS 9, 10 or 11. All other specifications being constant, a lower CAS is better.
kevinle1
Can someone explain to me what exactly precharge does?
ferozenaina
Lets say your row buffer already has bits from a previous row read. Now, the data in the DRAM row is destroyed and it is only resident on the row buffer.
Now, you want to read data in a different row. The precharge step writes the resident buffer back to the previous row in DRAM. It also clears and prepares the the 8 bit lines for transfer.
You can purchase RAM with a specific CAS for your computer. CAS is expressed as a single number which denotes latency in clock cycles. For eg: you can get DDR3 RAM with CAS 9, 10 or 11. All other specifications being constant, a lower CAS is better.
Can someone explain to me what exactly precharge does?
Lets say your row buffer already has bits from a previous row read. Now, the data in the DRAM row is destroyed and it is only resident on the row buffer.
Now, you want to read data in a different row. The precharge step writes the resident buffer back to the previous row in DRAM. It also clears and prepares the the 8 bit lines for transfer.