Comparison test of Alder Lake with DDR5 and DDR4
Intel 12th generation Core processor Alder Lake supports both DDR5 and DDR4 memory. This kind of operation is very common during the transition of two generations of memory because the new memory basically faces the problem of shortage of supply and high price in the initial stage of the market. However, the mainstream market still has to rely on an old memory. Of course, the performance may not be so good if the old memory is used.
The test results were unexpected. The read and write bandwidth of DDR5 memory with higher frequency is even lower than that of DDR4. The test results of DDR4-3200 memory latency are surprisingly high. The average latency of this set of memory in the Userbenchmark database is 75.2ns. The memory latency of this Alder Lake test sample is very high. It is estimated that we will have to wait for more samples to judge the specific situation.