2MB or 1MB cache

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migo2137 · #1 Post by **migo2137** » Tue Apr 19, 2005 4:30 pm

Hi!

Thinking of getting an T41p or T42. Since 735 has 2MB cache and the T41p 1.7 GHz P M has 1MB, I just wanted some opinions on whether the difference would be noticeable. T41p has the Fire GL card and faster harddrive. T42 Radeon 9600. Both 1,7 GHz P M.

awolfe63 · #2 Post by **awolfe63** » Tue Apr 19, 2005 4:35 pm

Well under 5% - not noticable.

stgreek · #3 Post by **stgreek** » Tue Apr 19, 2005 5:07 pm

migo2137 wrote:Hi!

Thinking of getting an T41p or T42. Since 735 has 2MB cache and the T41p 1.7 GHz P M has 1MB, I just wanted some opinions on whether the difference would be noticeable. T41p has the Fire GL card and faster harddrive. T42 Radeon 9600. Both 1,7 GHz P M.

If it is for the same price, get the T41p.

fbrdphreak · #4 Post by **fbrdphreak** » Wed Apr 20, 2005 4:14 pm

The other difference is that you are going from a Banias Pentium M to a Dothan Pentium M.
Yes, Dothan only gives you like 5-10% better performance. But that combined with the newer architecture and better battery life (It is build on a smaller manufacuring process and has more optimizations to conserve power) leads me to recommend you not bother with buying old technology.

If you're on a budget and you've got a great deal, go for it. Otherwise, splurge the extra $ and get a Dothan based laptop.

stgreek · #5 Post by **stgreek** » Wed Apr 20, 2005 4:49 pm

fbrdphreak wrote:The other difference is that you are going from a Banias Pentium M to a Dothan Pentium M.
Yes, Dothan only gives you like 5-10% better performance. But that combined with the newer architecture and better battery life (It is build on a smaller manufacuring process and has more optimizations to conserve power) leads me to recommend you not bother with buying old technology.

If you're on a budget and you've got a great deal, go for it. Otherwise, splurge the extra $ and get a Dothan based laptop.

The 7k60 will give a far greater benefit than the Dothan, unless he decides to upgrade the processor and drive later.

fbrdphreak · #6 Post by **fbrdphreak** » Wed Apr 20, 2005 4:53 pm

I agree, but battery life is not to be overlooked

w0qj · #7 Post by **w0qj** » Wed Apr 20, 2005 7:19 pm

Yep... you'll probably get better bang for your buck by:

a) upgrading your RAM to 768 MB or 1 GB, and/or

b) upgrading HDD to 7K60 or 7K100

Probably easier to do above, than to replace your notebook's CPU

migo2137 · #8 Post by **migo2137** » Thu Apr 21, 2005 1:34 am

well, according to IBM litterature (Ths6516d and TPD00023-WWEN-02) the battery life is 0,7h longer on T41p than T42p (6,4h to 5,7h).

fbrdphreak · #9 Post by **fbrdphreak** » Thu Apr 21, 2005 7:59 am

Are the screen's the same? Keep in mind a 15" XGA or 14" XGA/SXGA+ will use less power than a 15" SXGA+/UXGA.

v_parthi · #10 Post by **v_parthi** » Thu Apr 21, 2005 8:08 am

I had the same question & went for T41p.

Dothan gives less than 5% advantage, but only for some applications if you compare 1.7 Banias vs 1.7 Dothan (735). Many applications are quite happy with 1MB cache.

The nicer part comes when you get 7K60. Definitely 7K60 would be cheaper now, bacause 7K100 will be available in a month. 7K100 will be very expensive, I discourage you to get it for the next 1 year.

Don't forget the Dothan vs Banias price difference. You definitely save a lot.

regards
Parthiban.

migo2137 · #11 Post by **migo2137** » Thu Apr 21, 2005 9:12 am

fbrdphreak wrote:Are the screen's the same? Keep in mind a 15" XGA or 14" XGA/SXGA+ will use less power than a 15" SXGA+/UXGA.

Well, I compared a T41p with a T42pand the 15' T42p has longer battery life (5,7h) than 14' T42p. The TPD00023-WWEN-02.pdf claims that 14' has approx. "up to 5,5h" on 9-cell. With a 14' and Ultrabay slim batt. or Enhanced batt. it´s 8,0h on t42p but the T41p gets 8,6h. The T42 (2373-FVU) has longer life: up to 7,5h on 9-cell.

http://www-307.ibm.com/pc/support/site. ... -57839#bat

It´s probably not noticeable in every day use.

Btw: How hard/difficult would it be to change the processor in the future?

#12 Post by **K. Eng** » Thu Apr 21, 2005 9:14 am

I've read posts where people upgraded their Banias Pentium M to a Dothan model fairly easily. I know that the T4x system board uses a ZIF socket of some sort so I imagine it is pretty easy.

migo2137 wrote:
Btw: How hard/difficult would it be to change the processor in the future? I mean

fbrdphreak · #13 Post by **fbrdphreak** » Thu Apr 21, 2005 10:02 am

migo2137 wrote:
fbrdphreak wrote:Are the screen's the same? Keep in mind a 15" XGA or 14" XGA/SXGA+ will use less power than a 15" SXGA+/UXGA.
Well, I compared a T41p with a T42pand the 15' T42p has longer battery life (5,7h) than 14' T42p. The TPD00023-WWEN-02.pdf claims that 14' has approx. "up to 5,5h" on 9-cell. With a 14' and Ultrabay slim batt. or Enhanced batt. it´s 8,0h on t42p but the T41p gets 8,6h. The T42 (2373-FVU) has longer life: up to 7,5h on 9-cell.

http://www-307.ibm.com/pc/support/site. ... -57839#bat

It´s probably not noticeable in every day use.

Btw: How hard/difficult would it be to change the processor in the future?

That is really odd that T41 would be listed as having better battery life than a T42 w/same screens & batteries. Perhaps they changed their testing techniques? Regardless, if you can go w/Dothan do it! :p

In regards to changing the processor, it is possible, but I believe the only limiting factor may be the BIOS.

migo2137 · #14 Post by **migo2137** » Thu Apr 21, 2005 10:57 am

That is really odd that T41 would be listed as having better battery life than a T42 w/same screens & batteries. Perhaps they changed their testing techniques?

T42 (FVU): 7,5h on 9 cell
T42p 14': 5,5h 9-cell
T41p 14': 6,4h 9-cell

2MB or 1MB cache

2MB or 1MB cache

Re: 2MB or 1MB cache

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