2000mhz c9 or 1600mhz c6 ?

[momo56]

Whats better ?

 

[Big.Wayne]

• DDR3-1600 CAS 6 7.5 ns (128-bit) 12,800 MB/s
• DDR3-2000 CAS 9 9.0 ns (128-bit) 16,000 MB/s

• DDR3-1600 CAS 6 7.5 ns (192-bit) 19,200 MB/s
• DDR3-2000 CAS 9 9.0 ns (192-bit) 24,000 MB/s

Latency is in effect all the time, think of it as a micro delay on every single individual memory transaction, the lower the delay (ns) the better as more transactions can complete in less time . . . . bandwidth only comes into effect on the occasions you need it, think of it as the width of a water pipe, if you only pour a glass of water then the pipe doesn't need to be wide . . if you intend to fill a lake the pipe would achieve the task quicker if it was wider! . . . replace water with data and consider the worth of filling a jug from a premium pipe designed to fill a lake!

Out of the four theoretical examples above the 192-bit config running DDR3-1600 Cas 6 gets the best of both worlds . . . low latency and whooping bandwidth! . . . I would guess that low latency would be preferable to the average user than tremendous bandwidth although this is based on the assumption that most users don't need their system to shovel approx 19GB of data a second around! . . . look into it and examine plenty of benchmarks for the tasks you intend to perform before spending money ££ on something that may not actually be that useful to you!

 

[setter]

If your talking triple channel for i7, id go with 1600mhz, if running at stock it will default to 1066mhz, 2000 mhz on an i7 is nice, but to get the memory to run at that speed you need an i7 cpu that is one hell of a clocking cpu, and for that you need high end watercooling on the cpu, example, i have ocz reaper 1600mhz c7 ram (7-7-7-24 1.64 vdim 1547mhz), cpu is ran at 21x193bclk), 4ghz, well 4050 mhz.

 

[chiLLZ]

I have memory that can run 2000mhz cas 8 and i cant tell the difference between 1600mhz and 2000mhz in performance. The only thing is the cpu will overclock further when using a memory speed less then 2000mhz.

 

[braveheart]

I used 4x2GB OCZ "AMD Black Edition" DDR3-1600mhz in my ASUS Crosshair IV - prefect running with X6 1090T...