Athlon XP or Thunderbird @ 1400 ?


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This one is for my brother:

I have found an AMD T-Bird (Socket A) 266 MHz Processor for 107 and an AMD XP (1.47GHz) Processor for 125.

Which is the better deal and can anyone tell me the major diffrences between the T-Bird and the XP.

TIA

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the XP chips run cooler and better. You'll get butter performance in games and video encoding because the XP chip adds instructions for SSE 2 which is in the Pentium chips. The T-bird only has SSE (1) and 3DNow and Advanced 3DNow all of which are in the XP chip as well but get the XP chip!!!!

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The XP does run cooler, but if you go and look at some benchmarks, a 1.4 ghz xp vs a 1.4 ghz thunderbird, the thunderbird comes out on top. The 1.4 ghz is usually compared to a 1800+ XP I think, and in some benchmarks it wins out, but it's always really close to the 1800+. But I'd go with the XP just for the fact that you don't have to worry AS much about cooling.

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Originally posted by lawtai

The XP does run cooler, but if you go and look at some benchmarks, a 1.4 ghz xp vs a 1.4 ghz thunderbird, the thunderbird comes out on top. The 1.4 ghz is usually compared to a 1800+ XP I think, and in some benchmarks it wins out, but it's always really close to the 1800+. But I'd go with the XP just for the fact that you don't have to worry AS much about cooling.

Thats complete rubbish. The 1.47Ghz XP (the 1700+) is so named because it runs at what would have been a 1.7Ghz had they not changed the architecture. Therefore it competes with the likes of a P4 1.7Ghz (whereas a 1.4 Thunderbird runs compared to, guess what, a 1.4). The 1700+ leaves the 1.4Ghz thunderbird for dust in every test, the Thunderbird core is much older.

http://www6.tomshardware.com/cpu/02q1/0201.../p42200-11.html

http://www6.tomshardware.com/cpu/02q1/0201.../p42200-12.html

http://www6.tomshardware.com/cpu/02q1/0201.../p42200-13.html

http://www6.tomshardware.com/cpu/02q1/0201.../p42200-14.html

Need i say more.

The 1700+ is well worth the extra $18.

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I would have to go with the XP+ processor. I have a 1.4 T-Bird at home and I love it but I use the Athlon XP 1800+ and better at work and I can tell an obvious difference.

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ugh, that comparison of the T-Bird to the XP is really bad, everyone knows that Sisoft Sandra is purely a synthetic benchmark, and means little to nothing in real world performance. Besides how can you compare an overclocked proecessor to one left at stock speed?

.adam.

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Originally posted by antally

Oh, and the Athlon XP doesn't have SSE-2 it has SSE-1, whilst the T-Bird has no SSE whatsoever

yes it does have SSE2. That's why they compete so well in multimedia applications now against the P4! My T-bird has SSE and the 40 new instructions added to the XP core was SSE2 :)

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Originally posted by SHoTTa35

yes it does have SSE2. That's why they compete so well in multimedia applications now against the P4! My T-bird has SSE and the 40 new instructions added to the XP core was SSE2 :)

No it doesn't. Anatally is right. TBird has no SSE instruction at all. The XP has SSE. The next version of AMD chip WILL have SSE2 however.

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Originally posted by lawtai

http://www.hardwarepub.com/reviews/xp1800/index.shtml

yes the xp does beat the thunderbird, but a thunderbird does keep up and is sometimes faster than an xp processor

You've got your wires crossed, we're talking about a standard Athlon (Thunderbird core) running at 1.4Ghz vs. the Athlon XP (Palomino core) running at 1.47Ghz (the 1700+). The XP kicks the Thunderbird's a$$ in every test.

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The Xp is inherently better for a number of reasons. And not ones that were mentioned before.

1.) It is on a smaller die size. While it is still built on .18, it has components that are smaller and thus takes up smaller room and creates less heat and requires less voltage.

2.) It adds SSE , not SSE2 cause intel has not licenced SSE2 to AMD yet. The XP also has 3Dnow!Professional instruction sets that the thunderbird lacks (it has the regular 3dNow!)

3.) I has a slightly different architecture. It incorporates a limited function branch prediction engine and has an improved FPU. Also added native support of MP capability.

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