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| Thread ID: 65458 | 2006-01-19 01:01:00 | PC memory - CL | kingdragonfly (309) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 422383 | 2006-01-19 01:01:00 | I'm using the Kingston memory configurator www.kingston.com Is there any benefit to using memory with a higher CL rating? In other words, is CL3 better than CL2.5? I'd like to do DDR2, in the Gigabyte GA-K8NF-9 Motherboard. Cheers |
kingdragonfly (309) | ||
| 422384 | 2006-01-19 01:28:00 | If it's what I think, "Column Latency", smaller numbers are better. But I'm not convinced that fractions of a nanosecond mean much in real terms. (All right, in real terms 1 nanosecond is 1 foot, but you know what I mean. :D) I can remember when adding parity checking added 80 ns to the memory cycle time on a PDP11. |
Graham L (2) | ||
| 422385 | 2006-01-19 01:32:00 | I think CL rating means CAS rating, whatever that is. | kingdragonfly (309) | ||
| 422386 | 2006-01-19 01:36:00 | I found this on the web: . about . com/od/cpus/a/RAMGuidePt2 . htm" target="_blank">compreviews . about . com "Latency For memory there is another factor that impacts the performance, latency . This is the amount of time (or clock cycles) it takes the memory to respond to a command request . Most computer BIOS and memory manufacturers list this as either the CAS or CL rating . For SDRAM, the latency ratings are generally noted as either being 2 or 3 clock cycles in length . DDR is typically rated at 2 . 5 but can also be found rated at 2 . DDR has longer latencies due to the increased number of reads per clock cycle and will tend to have latencies of 3 to 5 . The lower the latency, the faster the memory is at responding to instructions . Most people cannot tell the difference between the higher and lower rating because they are so close together . Generally this will show up in very memory specific applications such as graphic rendering or cutting-edge 3D applications . " |
kingdragonfly (309) | ||
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