| ||Thread Tools|
|18th July 2008, 10:07||#1|
Join Date: May 2002
ATI Radeon HD 3870 Extreme Overclocking Experience
Obviously, we’ve got not the best sample of the ATI Radeon HD 3870. We only achieved a frequency of 1GHz at a voltage of 1.71V although other cards were reported to be stable at that frequency with 1.55-1.6V voltage. We could not lift the frequency to 1.1GHz at 1.75-1.77V and we didn’t increase the voltage further because 1.7V was already dangerous for the 55nm chip with a default voltage of 1.33V. The temperature showings were indicative of that: the fan working at the max speed, the GPU was as hot as 69-72°C when idle and over 90°C hot under load. We wouldn’t recommend you to repeat our experiment because there is a risk of damaging the card even if you provide enough cooling. Well, ordinary users do not use this kind of overclocking whereas true enthusiasts can’t be stopped by any warnings.
We managed to overclock the memory chips to 1242 (2484) MHz at a voltage of 2.05V. This increased the memory bandwidth from 72 to 79.5GBps. That’s not much. Anyway, that’s not the memory bandwidth that is going to be the main factor in games.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Overclocking the ATI Radeon HD 4890||jmke||WebNews||0||7th April 2009 09:49|
|ATI HD Radeon 4670 Official Reviews Released||jmke||WebNews||0||10th September 2008 11:05|
|ATI Radeon HD 4870 Overclocking Guide||jmke||WebNews||0||25th August 2008 11:57|
|GIGABYTE ATI Radeon HD 3870 512MB Crossfire Review||jmke||WebNews||0||11th April 2008 10:58|
|ATI Radeon HD 3870 X2 Graphics Card Review||jmke||WebNews||0||20th February 2008 12:20|
|ATI Radeon HD 3870 X2 review||jmke||WebNews||0||13th February 2008 17:45|
|AMD ATI Radeon HD 3870 & CrossFire||Sidney||WebNews||0||30th November 2007 16:11|
|Driver Heaven Mobility Modder.net Public Beta V 0.8.1.0 - XP and Vista Support||jmke||WebNews||0||22nd June 2007 12:19|
|Extreme overclocking: ATI X1800XT vs nVidia 7800GTX 512MB||jmke||WebNews||1||20th December 2005 17:56|