how come p3 700 is better for ocing then p3 800? how come?

[cs1205]

how come?

 

[compuwiz1]

In life, we meet with certain things that are beyond our comprehension. This is one of those things.... 😉

 

[spamboy]

Ok, here's a real answer. All PIII Coppermines are on the same core, so, except for random differences between chips, they all have more or less the same headroom. Most PIII's only overclock to around 933 or less easily. Some go higher, but the probablity of success gets lower and lower. Luckily, a 700 overclocks to a nice 933 when the FSB is 133. It's convient because you can do it without overclocking PCI or AGP or memory (assuming you have a 133 capable board and PC133 memory). The 800 wants to go to 1066 on a 133 bus - you'll never make it. So the two chips will go to around the same frequency, but the 700 does it with a convenient FSB which also runs the memory faster, so it will be faster at a given clock speed than the 800.

Hope that wasn't too much to handle. Get the 700, trust us on this one. It will be faster.

 

[spamboy]

Besides, the 700 is cheaper, and saving money is the whole point.

 

[IsOs]

As said earlier, the cB0 core seems to loose stability when running above 933. I'm not sure about the newer cC0 core. Given that most will possibly make it only up to 933, 700 offers the best overclocking ratio.

 

[Jhhnn]

What spamboy said- the only thing that ends up overclocked is the cpu. Getting to a gig or beyond is a low percentage bet with a p3e, ask Intel....

 

[TuffGuy]

mine did 1050 straight out of the box... perfectly stable. it runs seti@home 24/7 at high priority.

 

[compuwiz1]

TuffGuy, cool, but you got a 10 percenter, or less. 🙂

 

[Bartman39]

When you do get ready to buy a P3 700e check with Compuwiz1 he can set you up with a cC0 or he might have an older cB0 laying around that will do 933-1000mhz...


heheheh my 10%

P3 700e @1050mhz 1.65 (also does 1120mhz 1.80)
CUSL2 1003
Radeon 64 VIVO

 

[bonkers325]

simple the damn multiplier 🙂 and of course if it isa e or eb version also 🙂

cheers,
bonkers325

 

[dakost]

The 700e overclocks better for two reasons :
1) in general it is always easier to overclock cpu's with a lower
multiplier
2) in the case of the coppermines even the cc0 stepping has problems
when running above 1 GHz, so when trying to overclock an 800 cpu
there is less headroom than with an 700 cpu

If you have look in the overclocking database at www.overclockers.com, you'll see that for coppermine proccessors as the multiplier increases the average overclock speed % decreases by an average of about 6% per 50 MHz. Also after the 700e, the overclock speed % drops dramatically !