3GHz (800oFSB) or 3.066GHz (533FSB)

[Keruberne]

I dont know wich of those to CPU´s i should pick.

Wich one would be the best one to choose, when i want to OC.
The mobo i wanna put it in is the Abit IC7-G and memory i will use Kingston HyperX PC-3500

So please help me out here guys

 

[batboy]

If choosing between those two CPUs, the clear winner is the 3.0C (800 bus).

 

[asw7576]

1. Depending of RAM you gonna buy: PC3200 or PC3500 ?
2. I pick P4 3GHz - 800 and PC3500

ordinary luck: 15 X 250FSB = 3750Mhz with 1:1 DDR setting @ 500 MHz DDR.

very lucky : 15 X 275FSB = 4125MHz with 1:1 DDR setting @ 550 MHz DDR. This is possible with heavy modding on VMEM.

lucky SOB : 15 X 285FSB = 4275MHz with 1:1 DDR setting @ 570 MHz DDR. I don't think the memory can handle at 570 DDR.

 

[Keruberne]

Try an read my post again and see where i wrote Kingston HyperX PC-3500

 

[batboy]

ordinary luck: 15 X 250FSB = 3750Mhz with 1:1 DDR setting @ 500 MHz DDR.

very lucky : 15 X 275FSB = 4125MHz with 1:1 DDR setting @ 550 MHz DDR. This is possible with heavy modding on VMEM.

lucky SOB : 15 X 285FSB = 4275MHz with 1:1 DDR setting @ 570 MHz DDR. I don't think the memory can handle at 570 DDR.

Very much overly optimistic... my batboy overclocking senses predict this instead...

ordinary luck: 15 X 220FSB = 3300 Mhz with 1:1 DDR setting @ 440 MHz DDR. This might be really pushing the limits of PC3500 in dual channel mode. Might make it with high vdimm and relaxed timings.

very lucky : 15 X 235FSB = 3525 Mhz with 1:1 DDR setting @ 470 MHz DDR. This "might" be possible with heavy modding on VMEM and super relaxed timings. It's more likely you'll need good PC3700 RAM.

lucky SOB : 15 X 250FSB = 3750 Mhz with 1:1 DDR setting @ 500 MHz DDR. Probably will have to use exceptional cooling. Forget running DDR500 with dual channel DDR. You'll need to run at the 5:4 memory ratio which is DDR400, but you'll be able to run very aggressive timings and low vdimm.

 

[Keruberne]

Does the other P4 with 800FSB have HT ( P4 2.8Ghz 800FSB?)

Or wich of the other 800FSB CPU´es with HT OC better??

 

[asw7576]

Very much overly optimistic... my batboy overclocking senses predict this instead...

ordinary luck: 15 X 220FSB = 3300 Mhz with 1:1 DDR setting @ 440 MHz DDR. This might be really pushing the limits of PC3500 in dual channel mode. Might make it with high vdimm and relaxed timings.

very lucky : 15 X 235FSB = 3525 Mhz with 1:1 DDR setting @ 470 MHz DDR. This "might" be possible with heavy modding on VMEM and super relaxed timings. It's more likely you'll need good PC3700 RAM.

lucky SOB : 15 X 250FSB = 3750 Mhz with 1:1 DDR setting @ 500 MHz DDR. Probably will have to use exceptional cooling. Forget running DDR500 with dual channel DDR. You'll need to run at the 5:4 memory ratio which is DDR400, but you'll be able to run very aggressive timings and low vdimm.

Sorry... I was drunk.... I think PC3500 cannot cope with 500 MHz DDR. But kerubene can run with 3:4 option.

After considering RAM Speed limitation, I think I will go with P4 3.066GHz (533) + PC3500 + Asus P4C800 Deluxe.

Let see some OC possibility:

lucky: 23 X 166FSB = 3833.33 MHz with 4:3 DDR setting equal to 222.22 MHz or 444.44 MHz DDR

super lucky: 23 X 175FSB = 4025 MHz with 4:3 DDR setting equal to 233.33 MHz or 466.66 MHz DDR

lucky SOB: 23 X 185 = 4255 MHz with 4:3 DDR setting equal to 246.66 MHz or 493.32 MHz DDR

I think processor MHz is more important factor in benchmark results. than mobo speed.

For examples:

P4 3.0 (800): 15 X 250FSB = 3750 MHz with 1:1 DDR setting equal to 250 MHz or 500 MHz DDR. ( if you lucky enough the ram can run at 500 MHz DDR ).

versus

P4 3.066 (533): 23 X 175FSB = 4025 MHz with 4:3 DDR setting equal to 233.33 MHz or 466.66 MHz DDR