Low power upgrade to i5-8500

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Marcin



Joined: 02 Jan 2005
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Location: Poland

PostPosted: Sun Sep 15, 2024 3:30 am    Post subject: Low power upgrade to i5-8500 Reply with quote

Because of being high costs of electric energy nowadays I plan to upgrade my PC to very energy-efficent computer. Problem is that I have Dell S3422DWG monitor with WQHD 3440x1440 over DisplayPort with refresh rate 144 Hz which I would like to keep. Is there not expensive platform to go for ? AMD with integrated VGA ? Currently I have i5-8500/Z370-P Prime Asus board/GTX1050/M.2 disk/DDR4. No gaming, just websites browsing, emails and music over Spotify.

EDIT. OK I think about trying HP T740.

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misace



Joined: 14 Sep 2012
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PostPosted: Sun Sep 15, 2024 5:27 am    Post subject: Reply with quote

Display Port 1.2 on T740 can do only 3840 x 2160 / 60 Hz max and I think the CPU is too slow even for basic browsing.

You should not except much electricty savings, because your computer without monitor consumes about 50W at idle or normal browsing. Have you exchanged all bulbs at home with LEDs already?

BTW, I am using 1L tiny pc Lenovo M75q Gen2, which is cheap on second market and has DP 1.4, which can do 4K@120 Hz. It has a 4 core 35W Ryzen CPU and it is sufficient for youtube and browsing.

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Wasmachineman_NL



Joined: 04 Jul 2019
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PostPosted: Sun Sep 15, 2024 5:55 am    Post subject: Reply with quote

Could always undervolt that 8500 using ThrottleStop or something.
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Marcin



Joined: 02 Jan 2005
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PostPosted: Sun Sep 15, 2024 11:18 am    Post subject: Reply with quote

Wasmachineman_NL wrote:
Could always undervolt that 8500 using ThrottleStop or something.

Thanks. That could be good solution for a few W less but I think the most power hungry parts in my configuration are : VGA GTX1050Ti and my old PSU with low efficent. I prefer to change whole system. Current parts are still a quite valuable so that is the way I will go.

misace wrote:
Display Port 1.2 on T740 can do only 3840 x 2160 / 60 Hz max and I think the CPU is too slow even for basic browsing.

Thanks for that. I was trying to find supported resolutions with refresh rates but I forgot to check that over DP or HDMI standard. Plan with T740 would definitely fail.

misace wrote:
You should not except much electricty savings, because your computer without monitor consumes about 50W at idle or normal browsing. Have you exchanged all bulbs at home with LEDs already?

LEDS are present in every place from 1st day when I moved to new home years ago Smile

I have checked with power meter and when I have about 7 tabs opened in Chrome and scrolling for pages I have ~ 75W drain. Same with 4K Youtube video. Sometimes peaks to 82-85W. Not touching mouse - only reading page about 52-55W.

misace wrote:
BTW, I am using 1L tiny pc Lenovo M75q Gen2, which is cheap on second market and has DP 1.4, which can do 4K@120 Hz. It has a 4 core 35W Ryzen CPU and it is sufficient for youtube and browsing.

Ohhh that kind of answer I was expecting. I will check and propably purchase this or other tiny PC on Ryzen tech. If I can drop my power consumption by half or more that would be great so I have to read more about available options. I put an eye on Mini PC AOOSTAR GOD57. It is more expensive - new 332 EUR vs used Lenovo M75g gen 2 ~ 232 EUR but more fresh parts inside ?

If you guys have an other options/suggestions please input here. Max price 500USD/450EUR for new/used.

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misace



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PostPosted: Sun Sep 15, 2024 5:39 pm    Post subject: Reply with quote

I checked the spec and M75q Gen2 also can do only 4k@60 https://gzhls.at/blob/ldb/b/6/a/6/4219fe317ef0f056997cc61afc8ac44461df.pdf
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CHips



Joined: 01 May 2016
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PostPosted: Mon Sep 16, 2024 10:44 am    Post subject: Reply with quote

Ensuring that integrated graphics work with 144 Hz and this resolution is tricky and a bit of a gamble as you have seen in the discussion so far with many things turning out to only support 60 Hz. But do you really need your monitor or 144 Hz? It is also going to consume some energy and it also does not really make sense to have more than 60 Hz if you are not gaming unless you somehow specifically watch 120+ Hz videos, I cannot even think of an example of such non-gaming content.

For best power efficiency, you might consider switching to a laptop. Mine is consuming less than 20W screen included idling with tons of tabs open, and when watching YouTube it consumes about 30W.
If you really need something wide then you could get some matching external Usb C portable monitor with the same size as the laptop's to extend it, it should consume less than 10W.

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Marcin



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PostPosted: Mon Sep 16, 2024 1:35 pm    Post subject: Reply with quote

Thank you for all tips. I need 144 Hz at nominal resolution UWQHD because I see the difference at text reading/scrolling. You know if once you get used to better you won't want to go back to lower Smile

I burned some hours yesterday at searchings and finaly bought GMKtec (NucBox) M5 Plus with AMD Ryzen 7 5825U for 200 EUR include custom tax. M.2 drives I have. 2x 8 or 16GB SO-DIMM will be purchased and that is only one investment.

https://www.aliexpress.com/item/1005007593289357.html

Here it is review with confirmation about UWQHD 144Hz support in previous (older and slower configuration) not Plus:

https://youtu.be/_cxY_AZqgxw?t=300

Will let ya know if that is enough good for smooth web browsing when I get all up and running Smile

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Marcin



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PostPosted: Mon Oct 14, 2024 4:08 pm    Post subject: Reply with quote

Tiny PC has arrived. Installed 2x16GB Micron DDR4 2666 MHz + Adata Legend 800 1TB NVME and system is up and running. I'm happy from it's excellent smoothness with Ryzen 7 5825U and have 144 Hz refresh rate over DP.

IDLE before was ~ 60W. Now it is 15W.
Web browsing and watching youtube before was ~ 80-85W. Now it is 17-20W.

I'm music lover from kid times and a few years ago started experiments with hifi headphones and equipment so when I do computer job or entertaining I listen to Spotify a lot.

More energy efficent would be entertaining and music listening on 10" tablet with keyboard and BT mouse but for now I cann't change my old habits Smile

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CPUShack



Joined: 16 Jun 2003
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PostPosted: Tue Oct 15, 2024 12:24 am    Post subject: Reply with quote

75% less power is pretty good!
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Marcin



Joined: 02 Jan 2005
Posts: 8519
Location: Poland

PostPosted: Tue Oct 15, 2024 12:00 pm    Post subject: Reply with quote

CPUShack wrote:
75% less power is pretty good!

Yup Smile It was worth to make an upgrade in performance and power efficent in same time.

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wren4777



Joined: 13 Dec 2016
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PostPosted: Wed Oct 16, 2024 2:44 pm    Post subject: Reply with quote

Glad it worked out! x
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