Intel Pentium D 805 LGA 775 Dual-Core Processor BX80551PE2666FN, 2.66 GHz, 533FSB, 2x1MB L2 Cache

hardcandy2

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Feb 13, 2006
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Directron

"Boxed 2.66GHz GHz Intel PentiumD Dual Core"Socket T". LGA775 socket, 2 x 1MB on-die cache, 533FSB. This Processor includes Intel's Execute Disable Bit Capability.

Specifications: Boxed Product Code: BX80551PE2666FN. Manufacturer: Intel. Series: Pentium D. Processor Number: 805. Frequency: 2.66 GHz. Bus Speed: 533 MHz. CPU Socket Type: LGA 775. L2 Cache Size: 2x1MB (Dual Core). Platform Compatibility Guide: 05A. Manufacturing Technology: 90 nm. Intel EM64T: Yes. Hyper-Threading Support: No. Enhanced Intel Speedstep Technology: N/A."

Not sure if this is a "hot" deal but about $75-100 off list from what I saw. Did not find it on Newegg. Shipping $4-12 UPS ground.
 

bzo

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Jun 26, 2001
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3.7 Ghz here: HKEPC

btw, looks like $150 is about the normal prices for these newly released 805s according to froogle
 

nomadh

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Jan 19, 2004
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Any opinions on this proc. I'm looking to jump soon on a dual core something. I hear although some of these intels are not as fast as the amds they can be good for the price. I don't need anything too hot. My current amd athalon 2600+ is still doing well except when I get too many things going at once.
 

Insomniator

Diamond Member
Oct 23, 2002
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Sounds like the best 150 bucks you can spend on a cpu... especially with smp benchmarks of
quake 4 that were released eariler.
 

EKKC

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May 31, 2005
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they make dual cores running on 533fsb? i didnt know that :eek:
 

rgreen83

Senior member
Feb 5, 2003
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couldnt one just lower the multi and boost the fsb to 800 seeing as every recent board out there should be able to do that? or are intel processors locked up and down?

looking for a cheap dual folding box to play with.
 

rgreen83

Senior member
Feb 5, 2003
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I think intel isnt even really sure about these cpus, from there footnote on the 805

"15.This processor uses a physical signaling scheme of quad pumping the data transfers over a 166-MHz clocked system bus and a buffering scheme allowing for sustained 533-MHz data transfers."

I think that would be 533/4=133mhz
 

KDKPSJ

Diamond Member
Dec 13, 2002
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Darn.. this boy is so tempting me. I know Smithfield sux, but who cares, it's $ 150. I slowly think I should say good bye to my X2 3800+..
 

EKKC

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May 31, 2005
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i was thinking, if there was a dual proc board for this baby, 2 of these would make an awesome quad core server rig
 

Vette73

Lifer
Jul 5, 2000
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Originally posted by: rgreen83
I think intel isnt even really sure about these cpus, from there footnote on the 805

"15.This processor uses a physical signaling scheme of quad pumping the data transfers over a 166-MHz clocked system bus and a buffering scheme allowing for sustained 533-MHz data transfers."

I think that would be 533/4=133mhz


yea it is 133Mhz.

The performance problem is 2 cpus fighting for bandwidth over the 133bus. The other P-D's get 200mhz to share. So even at 3.32ghz (166mhz bus) it performs closer to a 3.2Ghz (200bus) as you do lose some with the weaker FSB.


But seeing as this is a B0 steeping, I guess there is no plans for a 905 :(

 

yuchai

Senior member
Aug 24, 2004
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Very tempting. I've wanted to go dual core but the AMD offerings are out of my price range. Any recommended boards to go with this proc?
 

Vette73

Lifer
Jul 5, 2000
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Originally posted by: yuchai
Very tempting. I've wanted to go dual core but the AMD offerings are out of my price range. Any recommended boards to go with this proc?


Depends what you want to do. Boards that support dual core P4 can be had for under $60 and then after that go up to and over $200.

 

JasonE4

Golden Member
Mar 14, 2005
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Originally posted by: yuchai
Very tempting. I've wanted to go dual core but the AMD offerings are out of my price range. Any recommended boards to go with this proc?
The Asus P5LD2 is fairly inexpensive for a board that supports dual core procs (945P chipset).
 

blckgrffn

Diamond Member
May 1, 2003
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I just ordered one for a client build yesterday along with the Foxconn 945P board. I'll chime back in too :)

*From here on out, it is only dual core 64 bit machines for clients who want to buy new PC's. I love technology!
 

Vette73

Lifer
Jul 5, 2000
21,503
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Originally posted by: corinthos
these don't have hyperthreading right?

No Dual core D chips do, only the EE (Extreme Edition) does and it has been shown to actually slow things down in some games and other apps.

That and Dual Core > Single core with HT
 

AkumaX

Lifer
Apr 20, 2000
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These are (literally) hot if you don't mind paying for a very good heatsink, a good o/cing motherboard, and don't pay for electricity.
 

Vette73

Lifer
Jul 5, 2000
21,503
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Originally posted by: AkumaX
These are (literally) hot if you don't mind paying for a very good heatsink, a good o/cing motherboard, and don't pay for electricity.



These 805's are the newwer B0 stepping. They run cooler then the A0 ones. Mind you yes the factory heatsink shoul be good for up to 3.3-3.4ghz range depending on case and outside temps.