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Mobile Intel Pentium 4 Processor with HT Technology

post #1 of 16
3/13/05 at 5:53pm
Thread Starter 
I have the theoretical aspects of what HT technology brings with it. But from a general user point of view, when you run CPU intensive multiple apps simultaneously does it really feels different from the non HT one?
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post #2 of 16
3/13/05 at 6:02pm
It's hard to say, being as a lot of the newer computers have only the HT technology built in, so it's hard to compare the two when the specs are the same and that is the only difference.
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post #3 of 16
3/13/05 at 9:05pm
This site should give you a good idea. Yeah it's a benchmark testing an engineering sample of the Athlon 64 Dual Core, but for your question it should suit you nicely:

http://www.hwupgrade.it/articoli/1193/2.html

There is no real difference in this benchmark; however that's all this is, a benchmark, but it's designed with more than one processor in mind, so keep that in mind yourself.

Don't ever buy a P4M; they will bottleneck you to death and eat all your power.
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post #4 of 16
3/13/05 at 9:11pm
Quote:
Originally Posted by TSFroggy
Don't ever buy a P4M; they will bottleneck you to death and eat all your power.
I concur with this statement one hundred percent. I have had terrible experiences with P4M machines' heat, battery life, and instability. Avoid them at all costs.
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post #5 of 16
3/13/05 at 11:02pm
If you want pure, raw Gigahertz power, go for a DR laptop with a P4 desktop CPU and a good ventilation system.
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post #6 of 16
3/13/05 at 11:05pm
Quote:
Originally Posted by epp_b
If you want pure, raw Gigahertz power, go for a DR laptop with a P4 desktop CPU and a good ventilation system.
Or just a shuttle PC.
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post #7 of 16
3/13/05 at 11:51pm
JIGAHURTZ means nothing.... do you really need HT?
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post #8 of 16
3/14/05 at 1:08am
Gigahertz only is an effective measurement tool when you compare different processors of the same processor family (eg when comparing Athlon64 3000+ to Athlon64 3500+.) Clock for clock, Pentium Ms work differently from Athlon 64s, Pentium 4s, etc etc and vice versa. Intel's marketing strategy for P4s was to push the processor to the highest clock speeds possible to fool the public into thinking the higher the GHz, the more powerful the processor.

In my opinion it makes no sense whatsoever to invest any money in Pentium 4s, when Athlon 64 and Pentium Ms can get the job done, with less heat/power requirements and a much "smoother" architecture.
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post #9 of 16
3/14/05 at 12:05pm
If you're looking for a machine that has "pure, raw number-crunching power", get an Athlon 64. They're as good as the P4's at "munching numbers real fast", better at real-world applications (especially gaming).

They also use about half the power when running at full load, and one-quarter when not under load.
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post #10 of 16
3/14/05 at 12:13pm
Higher GHz does mean more power to an extent. There's a point at which other aspects surpass it such as L2 cache, CPC, etc., but I have a hard time believing that a Pentium M at any frequency is nearly as fast as, for example, a P4 3.06GHz with HT.
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post #11 of 16
3/14/05 at 6:04pm
Quote:
Originally Posted by epp_b
Higher GHz does mean more power to an extent. There's a point at which other aspects surpass it such as L2 cache, CPC, etc., but I have a hard time believing that a Pentium M at any frequency is nearly as fast as, for example, a P4 3.06GHz with HT.
Seeing is believing!
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post #12 of 16
3/14/05 at 8:27pm
I guess so
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post #13 of 16
3/14/05 at 8:35pm
It's true. Let the benchmarks speak for themselves.

Just because a chip is faster doesn't make it more efficient. Pentium M has a shorter pipeline, better branch prediction, and a large, low latency cache; the P4 has a much longer pipeline (which only means less clocks per cycle, even though it also means higher GHz) and a lower, much higher latency cache. It is a much less efficient processor; add on heat and power requirements and you can see why I would favor a PM in a desktop over a P4.
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post #14 of 16
3/14/05 at 8:45pm
I can't remember the website, but it essentially say what TSFroggy just mention above. The Intel Pentium-M was redesign from the grown up to work in a smaller space. As the result, at a lower clock speed, it is able to handle processing much more efficiently than the Pentium 4 series. With the added 2MB cache allow it to process it a more efficient manner.

Here is something recent with the release of Sonoma:
http://www.pcworld.com/news/article/0,aid,119366,00.asp

Quote:
In the demonstration, the performance of a Sonoma system with a 2.13-GHz Pentium M processor, 1GB of memory, and the Alviso chip set was said to be comparable to that of a desktop system carrying a 3.6-GHz Pentium 4 processor with hyperthreading, 1GB of memory, and the Grantsdale chip set (which also supports PCI Express and DDR2).
Someone could correct me, but I've read from somewhere that the newer version of Intel Pentium 4 borrow a lot of designs from the Pentium-M for improvement. The original Pentium 4 was design to run purely on Ghz, but the newer revised version, i believe prescott onward borrow a lot of features from Pentium-M.
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post #15 of 16
3/19/05 at 9:29am
Thread Starter 
Quote:
Originally Posted by bhatti81
I have the theoretical aspects of what HT technology brings with it. But from a general user point of view, when you run CPU intensive multiple apps simultaneously does it really feels different from the non HT one?
I was able to view a demo video from "Tom's Hardware guide". He had two side by side machines (3.06Ghz (one with HT enabled), 512 DDR, ATI redeon). HT outperformed the other machine when multiple applications (adobe photoshop, MS powerpoint, Audio/Video encoding, 3d max, and Unreal Tournament) were run one after an another. HT machine was quick to respond in all the application startups...
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post #16 of 16
3/19/05 at 3:28pm
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