Intel E8435

Does anyone have this chip as an upgrade in their laptops? Any input on this and performance and heat compared to todays cpus? Big difference?

 

Read this:

http://forum.notebookreview.com/har...t-upgrades/485240-e8435-t9900-good-price.html


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the performance is the same as the T9900 but the E8435 runs hotter. There are two types of the E8435, one with an 45W DTP and one with a 55W DTP. The T9900 DTP is only 35W. Thus the T9900 is much cooler than the E8435.

A few people in the forum have tried the E8435. The reported that is was running very hot (90c plus under load).

You should try the E8335. It is similar to the T9800 and has a DTP of 35W only.

 

I was looking at the E8335 but I got a great deal that I couldn't pass up for the E8435. So even with undervolting do you think I can lower the temps?

 

It all depends on how good is your cooling system. Check this out. The OP tested the E8435 and then sold it because it was too hot. You can try. If it is too hot you can always sell it and recuperate your money

 

Sometimes the voltage is actually too high and the notebook wont be able to run it at all or on battery. It may be a software thing tho.

 

The reason the E8435 is a 'great deal' is that no one wants one in their machines.

 

I would opt for the software and more precisely the BIOS. The E8435 is desktop processors so the BIOS won't know how to power manage it properly. Beside since it is a desktop CPU it is normal that it has a higher voltage compared to the T9900

 

Oh my gosh how often do these threads come up. Ok here we go again.

Disregard all of the above that you have heard.

The E8435 comes in TWO flavors: SLAQD and SLGEA. Forget about TDP. It's a very misleading number.

SLAQD is a C0 stepping. It runs hotter than any T series CPU. It's much less efficient at idle and load. Do not get this if you are concerned about heat.

SLGEA is an E0 stepping. It runs hotter than a T series CPU at idle, but at load it will run about the same temp. The reason for this is:

E8x35 CPUs lack DFFS and IDA. DFFS is dynamic FSB frequency switching. It downclocks the FSB on the fly to save power. You'll take a 20-40m battery life hit as a result. IDA is Intel Dynamic Acceleration. It overclocks a core by a 0.5x multiplier under single threaded loads. The BIOS can manage the power just fine. There are no issues since it's the same as a normal C2D minus these features.

This is not a desktop CPU. It's a mobile CPU with features stripped off of it outfitted for iMacs. It's the same core as a T9900 and runs only 0.0125V more than a T9900. The E0 stepping can be undervolted to 1.1000V just fine at stock speeds, and overclock slightly further than a T9900 because of the additional voltage headroom.

PLEASE USE THE SEARCH FUNCTION BEFORE STARTING ANOTHER ONE OF THESE THREADS. (Though I guess this point is moot because anyone who sees this and posts a new thread will not have used the search function.)

 

Thanks!! I noticed you have the E335 version. How was your temps normally without any tweeking? Is the g50 or 51 cosidered it has having a good cooling system? I have the 51 with and zalman cooling pad.