A The latency ladder shows data access times in ns for different block sizes.
The system memory latency ladder shows random access times in billionths of a second (ns) for block sizes that cover each of the various CPU Caches (typicaly L1 = 32KB, L2 = 256KB, L3 = 4MB) and main memory (typically 4MB+). The varying latencies show how quickly a CPU can access data from different locations. Although lower latencies improve system performance they generally have less effect than overall bandwidth which is the primary performance metric for RAM. Latency measures the minimum time required for access to individual blocks of data whereas throughput measures the maximum number blocks that can be delivered per second.

The Best.
CPUGPUSSD
Intel Core i7-7700K $300Nvidia GTX 1070 $394Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $280AMD RX 480 $491Samsung 850 Pro 256GB $128
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $950SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3000 C15 2x8GB $160SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback