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04-02-2021

New Zealand

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  • Message 21 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-03, 1:41 AM

cheers @BiggAl 

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03-23-2015

Brazil

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  • Message 22 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-03, 13:44 PM

@ BiggAl wrote:

@ Charsiubun wrote:

 

I was playing Diablo 3 and also Hades.  But it stutters immensely when thermal throttling kicks in, which is like every 3-4 minutes...

 

 

Windows auto updated my graphics driver to:  9415  3/22/2021,  a couple of days ago, you might check that yours did also.  And I have a couple of suggestions: 

 

- try Fn+T to turn off “auto performance” mode.  This could even out performance when the CPU starts to heat up from game play.

- also check to see what the Windows AC performance slider is set to (click the battery icon.)  They talk about the slider in DC mode, but not in AC.  You can try moving it to the “best performance” setting there.

 

Thanks, I did not know about the Fn+ T trick.  It changes the behaviour somewhat:

My FPS dropped to c. 70-80, which is what I was hoping for to have sustained performance.  However, frame rates still drop to 7-12FPS every 5 minutes of gameplay (which is an improvement), however the time it takes to recover also takes longer, which is c. 7-10 seconds.   Interestingly, thermal throttling does not happen anymore, so the laptop will last longer, but it is still a shame that Lenovo cannot adjust power draw behaviour to ensure sustained performance over a longer period of time...

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04-02-2021

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  • Message 23 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-04, 8:37 AM

hi again @BiggAl, a quick query; X1 Carbon gen 9 vs T14 gen 2? which one you think would be more appropriate for the following requirements:

 

-> powerful performance (running VMs)

-> long battery life

-> lightweight / easy to carry

-> durable

 

many thanks.

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5146 Posts

01-01-2012

United States of America

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  • Message 24 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-04, 12:48 PM

Hi @ sslalani.nz    I think that other than performance, and cost, the X1 C9 has the advantage.  The physics of having a thicker case, allows the T14 to have a more efficient cooler and better case cooling, and better thermal / overall performance.  Interesting, the X1 has a stronger battery, 57Wh vs. 50, and with more energy efficient components, gives it roughly 50% better battery life.  It is 0.4 Kg lighter, which is a good percentage, and as I wrote, the lid, and case, is stiff and strong.  

 

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  • Message 25 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-08, 13:29 PM

@ Charsiubun wrote:

Thanks, I did not know about the Fn+ T trick.  It changes the behaviour somewhat:

My FPS dropped to c. 70-80, which is what I was hoping for to have sustained performance. 

 

Apologies for the delay.  Did you move the Windows Performance Slider (click the battery icon in the Task Bar, lower right) to the "best performance" position?  Move that first, and then try both Fn+T settings.  Thx. 

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03-23-2015

Brazil

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  • Message 26 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-08, 14:26 PM

Hi, I did try "Best Performance" when on AC, but it basically throttles every 90 seconds for a few seconds.  I would definitely recommend "Better Performance" on AC which should minimise throttling, though still not ideal...

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  • Message 27 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-08, 16:25 PM

OK, thanks. 

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  • Message 28 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-16, 18:00 PM

@ Charsiubun  --  are you familiar with the Win 10 'Variable refresh rate' setting?  It's off by default (Settings > Graphics settings), and turning it on may improving your gaming.  

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4 Posts

04-17-2021

Bangladesh

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  • Message 29 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-17, 12:55 PM

Wow wonderful

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03-23-2015

Brazil

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  • Message 30 of 33

Re:X1 Carbon Gen 9: First look, review & benchmarks

2021-04-18, 4:41 AM

@ BiggAl wrote:

@ Charsiubun  --  are you familiar with the Win 10 ' refresh rate' setting?  It' off by default (Settings > Graphics settings), and turning it on may improving your gaming.  

 

Thanks for the tip.  Though I don't think this is an issue pertaining just to gaming.  This is related to the power draw behaviour which is regulated by the BIOS.  It could apply to any CPU or GPU intensive application which causes the laptop to accumulate heat.  Lenovo needs to devise a better algorithm to ensure constant performance deliver under high load rather than peak performance over a long time period interrupted by immense throttling on an intermittent basis.

 

Again, I am running the latest BIOS, GPU drivers, etc.   Idle temperatures are also acceptable, so this really should be addressable via a BIOS update.

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