P3/850 vs. P3/733

[Guest]

Which is faster? P3/733EB (133x5.5) or P3/850E (100x8.5)?
What about a P3/800E (100x8.0)?

Same motherboard/everything but the processor, both 256k cache.

 

[Crashman]

PIII 850E will be a little faster. But the PIII 800E might be a better choice, because newer processors can reach a little higher overclock, and raising the 800E to 133MHz FSB would give you 1066MHz, that should work at around 1.95v, give or take .1v

What's the frequency, Kenneth?

 

[Guest]

Thanks...
My previous post was a lie, actually.
I already have a p3/733eb on a Microstar MS-6199VA (Slot 1)
Soon I'll be getting a P3/850 and either an Asus CUSL2 or a CUV4X from a friend for building him a dual athlon MP system (...drool...) I'm happy with my athlon 1000 (133x7.5), but the P3 system is for a different friend who has only a compaq presario k6-2 350.
He has the ms-6199va, p3/733eb, geforce 2 mx, 256mb pc133, 32x cd, 4x4x24 burner, sb awe64gold sound, 3com nic, 12gb ata/66

I don't ever use the p3 system, so I gave it to him awhile ago, but since I'm getting the socket 370 p3 for free, I just wanted to know which would be faster. My 2nd question is: Will the system be stable at 133MHz FSB with the HSF that came with the boxed processor?

 

[Crashman]

Until the recent i845 performance debacle, Intel chipsets have always had better performance than VIA, usually by a rather large margin, so the CUSL2 is heads above the CUV4X, and it's also more stable, compatable, etc.

Now the P3 733 will of course be stable with the standard heatsink. Overclocking a PIII 800E to 1066/133 would require something on the order of a good Athlon Thunderbird cooler. As for getting the 850 to 1133/133, er, well, probably not, but then again, you can always try. We're talking about a need for REALLY good cooling.

As a side note, I just recently sold a guy a CUSL2 and PIII 1000EB, and he runs his at 1250MHz!

What's the frequency, Kenneth?

 

[Guest]

Thanks for the information! I think that I'll leave it at 800 or 850 MHz. I prefer a quieter, but slower computer - I'm very happy with my multiplier unlocked athlon thunderbird 1333 @ 1000 - It runs fine at 131 degrees (F) with just a massive alpha and no fan 🙂. The thermally controlled fans in the enermax 431 watt are almost silent, and so are the IBM Deskstar 60gxp and asus geforce 2 gts fan.

Thanks Again!

 

[eden]

You actually unlocked your Athlon and downclocked it? What the hell is wrong with people these days!

--
For the first time, Hookers are hooked on Phonics!!

 

[Guest]

Yep - Underclocked by 333Mhz! The processor came unlocked. I think both the 1333 and the 1400MHz Athlon Thunderbirds all came unlocked from AMD. My processor was retail, too. It clocked fine at 1600MHz for me, but with one hell of a noisy fan on top. I dropped it down to 1000MHz and took the fan off and made a little duct to the intake fan on my power supply.

 

[Quetzacoatl]

You actually were able to run a T-bird WITHOUT A FREAKING FAN??? Lucky guy, you have a silent, and powerful CPU now! What temp does it run at!?!

"When there's a will, there's a way."

 

[bronibbear]

One of the most sensible posts I've read for a while here. Overclocking has it place for people who have need for a bit more speed but not the finances to buy a new CPU. I have an Athlon XP 1600+ (not overclocked) and it is more than adequate for my needs. I think if I had the choice I'd be doing the same as you as I often leave it on overnight to find my one bedroom flat as if I've had the central heating turned on! The multiplier is locked on the XP and I can’t be bothered fiddling around with the bridges, as they are tricky to patch on the XP. I can lower the front side bus but I don't like the thought of losing the efficiency of the data transfer.

 

[Guest]

Highest it ever got to was 147 (F). Stable though. Right now it's running 134 (F) with mp3 playing, web browsing, aim. This box, my 2 17" and a 15" monitors, my stereo amp keep this UNHEATED room at about 71 (F).

 

[Guest]

Well, I bought this processor and an Asus A7V-133 & 512MB PC133 for $114 a couple weeks ago (used). I also got my Asus AGP-V7700 pure (geforce 2 gts 32mb) for $30. I have VERY limited funds for computer parts, so I usually buy used and drive a VERY HARD bargain. Like buying a voodoo 3 3000pci for $30 and selling it next day for $90 🙂

 

[jclw]

What stepping are the processors? If it was a cD0 850E it would probably run at 133FSB if you had good cooling. The 800E is a safer bet. I run two 800E cB0 chips at 900 (112FSB). All in all I'd personally lean towards the 733EB on the i815 board. If you can get the board up to 160~166FSB it'll be running at ~900Mhz (which it should do easily) and you'll have tons of memory bandwidth.

- JW

[edit]
To answer your original question (a 733EB vs 850E) it would depend on the application(s) you were running. For extremely memory intensive appliactions (with data chunks much larger than the size of the L2 cache) and multitasking the 733EB would probably be faster because it can retrieve data from memory 33% faster. For raw processing power the 850E would be 16% faster.
[/edit]<P ID="edit"><FONT SIZE=-1><EM>Edited by JCLW on 03/31/02 08:28 PM.</EM></FONT></P>

 

[bronibbear]

Yes I really like the AMD Duron as it is a great performer without the heat problems of the Athlon and far better value. The new Duron 1.3ghz with its Morgan core would probably run as cool as your downclocked Athlon is now! The only thing I don't like about it is that AMD still sees fit to hobble its front side bus to 200mhz instead of 266mhz this can greatly decrease the efficiency of the overall system, the lower amount of L2 cache is less of a problem I feel.

 

[Guest]

Sorry I haven't gotten the processor yet, but I do know that it's an 850E, not an 800E.

 

[Guest]

Well, the 733 is on an MSI MS-6199VA, and it's a slot 1 processor & board. The MS-6199VA is supposed have an option to adjust the FSB in the BIOS, but I can't seem to get it to work. I don't have the board around so I don't really have much of chance to play with it, but I do remember that it's got Award v4.51PG instead of Award Medallion 6. It's also a VIA Apollo Pro 133 board, not an Intel chipset. I think, however, that the socket 370 board is infact an Asus cusl2 with i815 chipset. Can that board run RAM at 133MHz with the processor at 100MHz FSB?