Now corrected - 266FSB: Athlon XP 1700+ Thoroughbred core *officially* at 333FSB??

[subflava]

I was looking at newegg.com at their AMD CPU's and noticed this Link. Look about 2/3 down the page for XP 1700+ Thoroughbred.

??? Weird...AMD never announced they were releasing slower 333Mhz FSB chips. Guess this is an unannounced release....really puts a damper on the overclocking possibilities. I wonder if ALL the lower speed t'bred chips will be 333Mhz FSB.

Edit - Looks like newegg corrected the error now. It now says 266Mhz FSB as expected.

 

[rogue1979]

I almost think newegg listed a mistake there. Anyhow, if it is correct, I wonder if it is thoroughbred version A or B. If it is indeed the B, then unlocking it and running about 2.2GHz would make it a better bang for the buck than a $54 AGOIA-Y running 1800MHz.

 

[subflava]

I'm almost certain these are version A cores. For the longest time AMD was saying how they were migrating to .13u manufacturing process and how it was going well, etc. I think they've been saying this since the beginning of the year, yet the only only .13u chips you could buy were XP 2200+ and their notebook chips. Obviously those chips don't make up that much of their total output. They've probably been holding back all their lower speed .13u/RevisionA Athlon's back until all the old Palomino chips were consumed. My guess is we'll probably see a flood of lower speed .13u/RevisionA CPU's real soon now.

 

[mechBgon]

One way or the other, they've made a typo, because in one place it says 333MHz bus and in the other it says 266MHz bus. A 333MHz bus is probably not correct, because it would throw their PR system all to heck; the actual clockspeed would have to drop in order for a 333MHz-bus CPU to have the same PR as a 266MHz-bus CPU. Make sense?

 

[subflava]

Hmm...you're right about it saying 333FSB in one place and 266FSB in another. I missed that.

 

[The Sauce]

Could someone pelase clarify for me the issue with RevA and RevB and how this reflects the manufacturing process and overclockability. I must have missed out on this stuff.

 

[JSSheridan]

AT Article - Introducing the Thoroughbred Revision B. Peace.

 

[chizow]

IIRC the latest AT article on the Rev. B T-Breds at 2400+, 2600+ and 2800+ said that AMD has now replaced all XP processors with their T-Bred Rev. B fab process. Its in that review somewhere. I don't think there are immediate plans though on raising the CPU's bus to an official 333mhz though anytime soon for the entire line. The 2800+ will be the first with a true dual-pumped 333mhz bus, but its not going to be readily available in the short term (2-3 mos.). Retailers already have the 2400+ and the 2600+ should be following shortly, and they are still running on a 266 mhz bus.

As someone else posted above, this is good news for everyone else. If they are replacing their entire line of XP's with Rev. B T-breds, chances are they will just be slightly lower yield versions of their 2400+ and 2600+ cpus. It makes no sense financially to scale down their fab process for slower clock speeds, so I think you'll see some sickly low-end T-breds that easily reach 2.0 ghz. I know that most places are trying to sell off their current stock of low speed XP's based off Palomino, but don't expect the T-breds to be at the same pricepoint as their Palomino counterparts. The only tricky part will be to find a Rev. B version, since the only way to tell is through the cpuid. Best bet is to buy an XP rating T-bred that was never produced in Rev. A, which would almost guarantee a Rev. B rating. I'm just speculating on the availability of a full line of XP's based on T-bred B, but based on AMD's past practices and the article stating they are only fabbing T-bred B's, I think its a pretty safe bet. Have to wait and see if a 2 gig XP for under $100 becomes reality or not

Chiz