why does my pi 1m get slower with tighter timmed ram ?

[WelshD1K]

ok so i have some 1866 tipjaws that do 9-9-9-24 @ 1866 or some ocz that do 6-8-6 @ 1600 cpu same clock just different ram and the pi 1m get slower?

 

[badatgames18]

for 1155.. ring bus frequency = ddr3 speed.. why higher strap is generally always better for 2d.

in short.. sandy likes frequency vs timings

 

[marsey99]

subtimings play a massive part with spi, maybe to get the tight cas they drop the subtimings?

 

[TheMadDutchDude]

Both the speed of the RAM and the timings are important in this benchmark.

SPi loves raw frequency and tight timings.

 

[marsey99]

ram timings are a funny thing, you need to get the right sub timings for the main so you dont get any hangs where the cycles dont mesh right, this is why you can get better results by tightening the subs and not the cas.

super pi is all about raw power and you should only really look into this once you have gotten the most mhz from everything you can.