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View Full Version : Memory performace: PC3200 vs. PC4000 ?


ViN86
07-25-05, 09:51 PM
im considering buying some PC4000 memory and overclocking my cpu to 2.5GHz (ive hit it before, so i know it can) then running my memory and FSB/HT 1:1. also, i can run my HT multi at 4x and get 1000MHz (right now its on 4x but only at 960 MHz)

is this worth it? i know that with dual channel, the pc3200 memory theoretically provides 6.4GB/s and that the pc4000 provides 8.0GB/s and that this will never really be filled (right?). also, the timings will be increased slightly (2-3-2-6 to 2-3-3-8)

so, is this change in memory worth the performance increase?

ViN86
07-26-05, 07:42 PM
lol, anyone know?

GlowStick
07-26-05, 08:03 PM
I would get the PC4000, most of the time you can run it at lower latencys if you run at stock speeds, but have the abality to oc with it.

cheers!

muaddib
07-27-05, 06:33 AM
There will be NO performance differences at stock and at higher clocks unless they're rated at different latencies. You MIGHT have more OC potential with the PC4000 sticks, because they're speed-binned higher, but it may turn out that the PC3200 is the better OCer.

john19055
08-08-05, 10:41 PM
The Corsair XMS3200XL will hit 250 with pretty low latency ,I hit 10x250 with 2-3-3-7-1T and the PC4000XMS I have I could hit 250FSB but I had to use the timeings of 3-4-4-8-2T and it was a lot slower then the extra low latency of the Corsair XMS3200XL.

Zurble
08-09-05, 06:55 AM
if you can get 2 stick instead of 4 you could set 1T instead of 2T which i heard is the most important setting in timings

Kojiro
08-14-05, 04:21 AM
There will be NO performance differences at stock and at higher clocks unless they're rated at different latencies. You MIGHT have more OC potential with the PC4000 sticks, because they're speed-binned higher, but it may turn out that the PC3200 is the better OCer.

Unless the 3200 which actualy runs a 200Mhz han be sucessfully OCed higher than 250Mhz would it be better than a 4000 stock which runs at 250.

The thing is that the FSB will need to be OCed to get to 4000 speeds. PC 4000 or DDR500 will run at PC3200 or DDR400 at stock FBS speed. To use PC 4000, you must OC. That's the reason for ultrafast memory, to OC PC's without OCing memory, because the memory is already fast enough.

john19055
08-14-05, 08:21 PM
Go with the Corsair 512mb CMX3200XL it overclocks great ,I made the mistake in thinking the PC4000XMS would be a better overclocker but it fell way short ,at least the Corsair PC4000XMS that I had,Go with the ones that have the lowest Latency,like 2-2-2-5 and they will overclock better then the PC4000XMS