G51 CPU upgrade P9700 vs T9900 (battery/performance/price)

Hello,

I'm thinking of upgrading the CPU on my BB G51 to an Intel P9700 or T9900.
Will the T9900 use the battery much faster then the P9700? Is the performance from T9900 worth $100 more?

Has anyone installed P9700 on G51 successfully?

I currently have P7350 and I'm not sure if I want to have much less battery life then what I have now.

Thanks!

 

IMHO no. Because you have the OC option in the G51 which can raise the clock in the P9700 to the equivalent of the T9900. So I would'nt pay $100 more for the higher clock.

I think that you would get undern normal use up to ~10min less of battery time. Thats my rought estimate, which I calculated after installing a T9600 in my G51.

You can buy the T9900 and undervolt the CPU, and make the difference in battery draining between the CPU's very small. On the other hand the P9700 is a good choice in both battery life (28W TDP @ full load | P7350 - 25W) and in giving out heat. It should run a few degrees lower than the T9900 under load and drains oly little more power than the stock CPU in the G51.

 

Thanks for the reply. I think I will get the P9700.

 

I'm really inserted on whats your temps/perfomance with the P9700, i wanted that exact cpu, but i didnt have access to it at the time i bought my t9600, but always have a little thing inside into what would the p9700 woulda been.

 

Abula, you can undervolt your T9600 and it will basically be a P9700 if you undervolt it well (as low as possible). A P9700 is essentially a factory underclocked T9600.

 

Thanks for your reply, but i find the somehow different, like most of the P series i seen idling high, high 30s low 40s (P7350/P8700), while my T9600 idles at 20s, but on loads i seen my T9600 go higher under heavy stress (70s) while the highest i saw on P8700 was 60s. Im just a little curious how will the idle and load be on a P9700 on an G51.

 

But the T9900 being the highest speed Core 2 Duo available, is also the highest binned, and will probably overclock better than the P9700.

 

the main difference is cache i think... i would go with the p series anyday or even a q seriers quad

 

Thanks everyone for the replies!

I ordered a P9700 from www.excaliberpc.com and Arctic Silver 5 from newegg. I'm hoping it will be here in 3 days.

I will be using the G50 guide from here.
http://forum.notebookreview.com/showthread.php?t=318551

I have some laptop repair experience... Replacing the CPU on this laptop looks easy but is there anything I should watch for?

I will post an update after I install the CPU.

Thanks!

 

Ok, got it installed. I can add 2x anti alias to Crysis demo with all settings on high and native resolution

My reason to upgrade was to improve virtual machine performance vmware/virtualbox. I'm noticing nice improvement on vmware player 7.
I haven't really tested much tho...

With XP in a virtual box... I can now run Ubuntu as my native boot OS (for work and the web).

What type of benchmarks should I do?

 

Well i personally in only intersted into temps, dl HWmonitor and IntelBurnTest.

Let the laptop idle for 5mins and post the current temp.

Run IBT, the way it comes 5 loops, and post whats was the highest temp it reached.