The comment about system memory not being faster with Bernie Rainbow Bernie Sanders T-Shirt, the way dram works is using a 2 stage lookup, kind of like an excel spreadsheet, the first stage you look up a column, then within the column you find the right row for your data. The trick with dram is that the column lookup places the whole row into a register that can be queried multiple times, so if you have followup requests of data that is also placed within that row you can just query this register for the rest of the data instead of doing another column lookup. this access pattern is called burst mode.
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Modern CPUs take advantage of this fact and Bernie Rainbow Bernie Sanders T-Shirt, every time the CPU writes or reads to memory it does a burst mode access of the whole packet that includes the address range you want to use. CPUs always use cache line size access to memory since burst mode is considerably faster. This makes sequential access of data fundamentally perform better than random access since you always pay the burst mode access cost of a whole cache line, and if you don’t effectively use that data the CPU will spend more time hitting memory which it really doesn’t want to.