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Diff between DTR notebook cpu and normal cpu?

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  • Notebooks
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October 6, 2004 3:45:57 AM

I notice some cpus, in this case the A64s, are made for dtr notebooks and some for normal computers, but all are socket 754. So whats the difference?

More about : diff dtr notebook cpu normal cpu

October 6, 2004 10:16:56 AM

The mobile versions are usually just hand-picked examples which run happily on lower Vcore, so they consume less power.

they're just slightly higher quality examples of the chips basically.

Same as Normal Athlon XP 'Barton' chips and the Mobile XP chips. Overclockers love them because they overclock much better than 'normal' Desktop chips (plus they have unlocked multipliers so the laptops can throttle them down to save more power - not sure if the same is true of the 754 variants but I would suspect so to some extent)

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Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL/1x512Mb Corsair XMS PC4000 2.5-3-3-7
Sapphire 9800Pro (VGA Silencer Rev3) @418/742
October 6, 2004 11:35:30 AM

don't the A64 versions have less cache? Don't quote me on that, I'm not sure - but I think i heard it somewhere :lol: 

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October 6, 2004 11:39:06 AM

The 'Clawhammer' A64 Chips have 1MB L2 Cache, whereas the 'Newcastle' A64 Chips have 512K Cache. It's also important to note the differences with certain models, like the 3400+ Clawhammer is 2.2Ghz w/ 1MB L2 and the 3400+ Newcastle is 2.4Ghz w/ 512K L2...as far as I understand it the 200Mhz speed boost is better than more Cache

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October 6, 2004 11:54:47 AM

DTR is SLIGHTLY handpicked...but more importantly it doesn't have an IHS. Except in a few rare cases, you can't use the standard mounting bracket with it (no contact); you also have to be a lot more careful not to crack the core when installing it.

Maxtor disgraces the six letters that make Matrox.
October 6, 2004 12:09:28 PM

ah yes.. forgot about that.

Do you know if they're multiplier-locked or not though? I'm curious myself now...

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Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL/1x512Mb Corsair XMS PC4000 2.5-3-3-7
Sapphire 9800Pro (VGA Silencer Rev3) @418/742
October 6, 2004 1:54:52 PM

Like desktop chips...they're open downward but not upward.

Maxtor disgraces the six letters that make Matrox.
October 6, 2004 2:08:52 PM

Quote:
Like desktop chips.. they're open downward but not upward.

I thought it was only the FX chips that were unlocked at all?

Downward is the only Direction I'd ever want :smile: ...

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Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL/1x512Mb Corsair XMS PC4000 2.5-3-3-7
Sapphire 9800Pro (VGA Silencer Rev3) @418/742
October 7, 2004 11:59:51 AM

No one mention it, but the DTR and Mobile A64 don't have an heatspreader on the CORE. This make them more "fragile" to heatsink installation, but on the other hand, this ensure a better contact between the CORE and the heatsink. For overclocking, it's a good thing, you can suck a bit more heat from the core!

--
A7N8X / <font color=green><b>AMD Sempron 2800+</b></font color=green> <-- <i>Is this affecting my credibility???</i>
Kingston DDR333 2x256Megs
<font color=red>Radeon 8500 128Megs</font color=red> @ C:275/M:290
October 7, 2004 1:15:06 PM

Umm.. Actually, Vapor Said:
Quote:
but more importantly it doesn't have an IHS.

:wink:

Although admittedly he didn't point out the potential heat transfer improvement because of it.

---
Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL/1x512Mb Corsair XMS PC4000 2.5-3-3-7
Sapphire 9800Pro (VGA Silencer Rev3) @418/742
October 7, 2004 1:19:50 PM

The price is also a lot higher.

With zalman's, watercooling, some coolermaster coppers, really such a need for slightly more heat dissipation is not at all worth the 70+ dollar difference, plus, the chance of losing it all to a snaped core. I havent bothered with amd after k6-III 400 as the chance of snapping my cpu was high and thats just a retarded design flaw. Finally, I think they are back into their senses.
October 7, 2004 1:54:37 PM

I've installed Loads of Athlons (3 of my own, 3 for friends/family, 5+ at work) without heat spreaders and <i>never</i> cracked a core. The risk is hugely overstated. unless you're a heavy-handed sausage-fingered idiot it's quite difficult to do. And that's not even counting all the times I've removed and replaced my own heatsinks....

Actually, we used to have a heavy-handed sausage-fingered idiot working here and even HE managed to put together a couple of systems without damaging them.

---
Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL/1x512Mb Corsair XMS PC4000 2.5-3-3-7
Sapphire 9800Pro (VGA Silencer Rev3) @418/742
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