What is better 1T or 2T?
The average performance increase is ~3.5% for 1T Command Rate over 2T. Let’s perform another quick test run to see what are the benefits of 3733 MHz vs 3600 MHz using the same CL settings and Infinity Fabric divider set to 1:1.
What is command rate DDR3?
Command Rate (CMD) is the Delay between chip select and command, or the number of clock cycles needed to send data. On 1333 maybe 1600 1T {aka 1N} can be used but if it’s too fast it can both cause errors and if the data is needed to be resent can actually take longer. MOST current DDR3 RAM has a CMD of 2T {2N}.
What does CAS latency mean for ram?
The CAS latency is the delay between the time at which the column address and the column address strobe signal are presented to the memory module and the time at which the corresponding data is made available by the memory module.
What is 2N RAM?
2N is the command rate (CR) and is the time it takes a signal in memory to be issued to a ram module.
How much faster is ddr1t than DDR2?
1T is typically ~4-5% faster than the same memory/speeds at 2T if I recall correctly… this was a big topic back when DDR2 was brand new. At least when I was benching my main rig awhile back I had a ~6% delta in 3dmark overall scores (~7% on CPU, and SuperPi) when running 1T vs. 2T.
What is the difference between the 1T and 2T settings?
The Command Per Clock (or Command Rate) setting determines the delay (in clocks) between the chip being selected and the controller beginning to send commands. 1T gives better performance, while 2T yields increased stability with older/cheaper RAM
How much better is 1T memory compared to 2T memory?
Postulates, ideas, opinions etc. not much else, but an interesting read IMO! 1T gives roughly 18% memory performance over 2T, just FYI. be interested in hearing your latency results at 2T vs 1T…. Is that logical? be interested in hearing your latency results at 2T vs 1T….
What is the CMD of DDR3 1600 Ram?
MOST current DDR3 RAM has a CMD of 2T {2N}. Test both, 1T & 2T with Super PI and Memtest; if it’s faster + errors then go back to 2T. Most of my rigs are set to 2T with DDR3 1600. edit: Where I use 1T — it’s tested big-time!