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Does 533 FSB hurt battery life?

T

Tostada

Golden Member
I've seen quite a few things saying that DDR2 533 really isn't any faster than DDR2 400 because DDR2 533 has higher latency which usually evens out the performance.

I also really don't think that a Pentium M 730 (1.6 GHz, 533 FSB) would really be noticably faster than a Pentium M 725A (1.6 GHz, 400 FSB), but I haven't seen any numbers on that.

So, I'm just wondering how it affects battery life. I haven't seen any comparisons of battery life when all things are equal except the FSB. I'm not talking about an 855 vs. 915 chipset comparison -- I know Sonoma uses a little more power. I just can't imagine there's no difference in power consumption between the two speeds. Is that the whole reason Sonoma uses more power? Would a Sonoma laptop running at Pentium M 725A last just as long as an 855 chipset running a 725A?
 
I would think that the battery life would be affected minimally. I'm pretty sure that ddr2 400 and ddr2 533 use the same voltage.
 
The main reason the Dothan CPU uses more power in the Sonoma platform is due to the higher bus speed.
I also believe the 915 chipsets use more power due to PCI-E, SATA, etc etc.

In terms of actual battery life and performance between a 1.6 & a 1.6, give me a couple weeks 😉 All your questions will be answered
 
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