# CM4 - benefits of the 8GB version?

**URL:** <https://forum.clockworkpi.com/t/cm4-benefits-of-the-8gb-version/12241>\
**Category:** uConsole\
**Created:** [January 25, 2024, 7:06am UTC](https://forum.clockworkpi.com/t/cm4-benefits-of-the-8gb-version/12241 "2024-01-25T07:06:05Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![Ryan\_Finlayson](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/ryan_finlayson/32/5989_2.png) [@Ryan\_Finlayson](https://forum.clockworkpi.com/u/Ryan_Finlayson)\
**Post date:** [January 26, 2024, 4:33am UTC](https://forum.clockworkpi.com/t/cm4-benefits-of-the-8gb-version/12241/16 "2024-01-26T04:33:07Z")

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> [@uConsole - Software tips and tricks general thread!](https://forum.clockworkpi.com/t/uconsole-software-tips-and-tricks-general-thread/12243/2):
>
> How to stop screen tearing in CM4 units. I was experiencing bad screen tearing in Firefox and Chromium, as well as GBA emulators and other games. To fix this, we need to run the following command in a terminal. sudo raspi-config go to “advanced options” with the arrow keys, select with enter, select xcompositor, and turn off the xcompositor. hit tab to select “finish” and enter to exit. For me, using Cinnamon as my DE, this got rid of all screen tearing issues. How to comfortably overcloc…

I detailed the process in this thread. TL;DR I overclocked it to 1800mhz on the CPU, and 750mhz on the GPU, with a 512mb GPU cache/vram allocation (note that this takes away from system RAM).  
Now the long version. After doing this I saw an increase in FPS in Minetest (default game, no mods, lowest settings) from a range of 25-29 FPS to a range of 35-40 FPS. I went from no Nintendo DS games being playable through DeSmume, to some DS games running at full speed with frame skip set to 1.  
The cost associated with this was heat, and power. Before my overclock the CPU wouldn’t go over 40 celsius. Now it touches 50 celsius after a few minutes under full load, and even goes up to 52. Power wise, I haven’t been able to measure but I can tell the system uses a lot more power. Tasks where the CM4 isn’t maxed out weren’t affected, heat and power wise. I scaled back the overclock to 1700mhz and 675mhz respectively as everything I played was still playable at that clock and saves a bit of power and turns down the heat a bit.

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