Getting an AXP 1800+ , which core should I get?

tombance

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Hi, im just about to order an AXP 1800+, however I have the choice of either the Palomino or thoroughbred core. The Thoroughbred is cheaper and to my knowledge is the later of the two that runs cooler? Yes? So I should buy this to give me a cooler system and more overclocking potential (if any on an AXP)?
 

andlcs

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I would get the t-bred core. It runs cooler (max power consumption is 51W agaist 66W of the palomino 1800+), has 0.13µ manufacturing process, less voltage. But I don't know about it's performance and overclocking potential (the T-Bred 2200+ is a poor overclocker, I don't about this speed)
 

chuck232

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Good choice, too bad I wasn't here before you ordered it. The XP1800+ t-bred should do ~1.9GHz to 2GHz on good air cooling.

...And all the King's horses and all the King's men couldn't put my computer back together again...
 

baldurga

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Exactly! Max power comsumption is 51W vs. 66W, but because its smaller die size it would be needed a better HSF, copper at least? I was asking myself is this could also limit the overclockability even it's build on 0.13 process ...

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monkeyspank

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smaller die size = less area to dissipate heat. Is someone here able to do the sums? I'd be interested

<font color=red> -- </font color=red><font color=blue>A bush in the hand is worth two birds at the bar</font color=blue>
 

baldurga

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XP Palomino core: 128mm2
XP Tbred core: 80mm2

In other words, Palomino has an extra 60% surface for transfer heat, but the difference is 29% or 15W (51W vs 66W), no exactly the same relation. For this reason TBred needs a very good cooler that absorbs heat quickly (and dissipates, obviously) and this means copper.


DIY: read, buy, test, learn, reward yourself!
 

Spitfire_x86

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T-bred's require a heatsink with copper tip.

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andlcs

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AMD should put that HEAT SPREADER in T-Breds and Bartons CPUs like the P4 ones. Will Bartons have Heat spreaders ( even w/ a bigger core than T-Breds)?
 

tombance

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Well im getting the retail heatsink for the moment (if its not good enough, it aint my problem) but if I feel the need to overclock ill get a better one later. Do retail athlons come with the thermal paste? or just that crappy thermal pad? If so should I remove the thermal pad and replace it with my generic silicon stuff that came with a coolermaster HSF?
 

Crawler

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In the last week I have built 2 computers... one using the palomino xp1800 and one with a t-bred xp1700. Both have been with the retail HSF, one additional exhaust fan and AS3 instead of the stock pad. The XP1700 runs a good 10 degrees C cooler... so far nothing higher than 40 C under load. I would expect that the T-bred 1800+ would only be very slightly warmer than this.

I have not yet seen any t-bred 1800+ for sale here in Canada yet, but I will be grabbing one as soon as they become available.
 

tombance

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Great! well im not sure if theyre acctually here yet, the place where I ordered it from doesnt yet have them in stock, but theyre due in the 18th December. im looking forward to this!
 

Spitfire_x86

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So called "Heat Spreader" INCREASES temperature. It adds an additional layer between cpu core and HSF. It might help some dirt cheap coolers, but they have no effect with hi-end coolers.

It is actually "core protector". It elimintates the risk of crushing the core while HSF installation.

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