CPU, SSD, DRAM, HDD의 Latency 비교 (속도)

CPU, SSD, DRAM, HDD의 Latency 비교

	Size (GB)	P/E cycles	Bits per cell	Seek latency (μs)	Read latency (μs)	Write latency (μs)	Erase latency (μs)
L1 cache	0.064MB	*	*	*	0.001	0.001	*
L2 cache	0.512MB	*	*	*	0.005	0.005	*
L3 cache	8MB	*	*	*	0.008	0.008	*
DRAM	32GB	*	*	*	0.04	0.04	*
SLC	256GB	100k	1	*	25	250	1,500
MLC	256GB	10k	2	*	50	900	3,000
TLC	256GB	5k	3	*	100	1,500	5,000
HDD 15K	600GB	*	*	2,000	2,000	2,000	*
HDD 10K	1200GB	*	*	3,000	3,000	3,000	*
HDD 7.2K	8000GB	*	*	4,200	4,200	4,200	*
HDD 5.4K	8000GB	*	*	5,600	5,600	5,600	*
HDD 4.2K	8000GB	*	*	7,100	7,100	7,100	*