Ice Lake vs Comet Lake eGPU performance
 
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Ice Lake vs Comet Lake eGPU performance  

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irev210
(@irev210)
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Just wondering if anyone has compared the two.

It seems that Ice Lake has better TB3 integration but Comet Lake benefits from having 6-core.

Not sure how this translates into eGPU/gaming performance.  Has anyone done any tests comparing the two?  Specifically 25W ice lake vs 25W comet lake?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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itsage
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@irev210 Due to TBT integration to the Ice Lake CPU, the Thunderbolt 3 connection should be better than previous gen (TBT through PCH). While I have not tested one myself I heard good results from eGPU vendors. It would come down to the laptop's cooling system.

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irev210
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Posted by: @itsage

@irev210 Due to TBT integration to the Ice Lake CPU, the Thunderbolt 3 connection should be better than previous gen (TBT through PCH). While I have not tested one myself I heard good results from eGPU vendors. It would come down to the laptop's cooling system.

   

This is what makes it a very interesting comparison.  For example, the Dell XPS 13 7390 2 in 1 vs standard xps 13 both offer 25W TDP in performance mode.  Which one is better for eGPU gaming?  It would be great to see someone compare or if two people have similar configs to compare eGPU performance.

One of the more interesting laptops to hit the market is the MSI Prestige 14.  It is Hexacore Comet Lake plus Nvidia 1650 max Q in a sub-3 pound package with TB3.  From what I’ve read, MSI allows for significant CPU performance (up to 30 watt) meaning it has serious potential to be a good laptop+eGPU setup.  I just wonder if the Dell Ice Lake 7390 2-in-1 is a better experience .

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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itsage
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@irev210 Yes the MSI Prestige 14 and 15 with the 6-core processor is an interesting choice. I put together an i7-10710U build recently (MSI Prestige 15 + AKiTiO Node Pro + GTX 1080 Ti). Its cooling system is to handle both CPU and dGPU so during eGPU use, it's an easy task keeping only CPU cool. This laptop also has two NVMe M.2 slots so I'll try M.2 eGPU adapter with it soon.

 

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Eightarmedpet
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Posting a link here as not sure how many folks frequent the sub, super interesting results, roll on next gen small MacBook Pros (13/14, as I have had to admit 16inch won't fit on my tiny desk).

https://www.reddit.com/r/eGPU/comments/e2lpbh/egpu_comparison_ice_lake_vs_coffee_lake/

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Ningauble77
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Interesting results, although without more data points it is tough to ascribe the performance difference to icelake's integration exclusively.  Would be nice to compare another U-class laptop, many of the 45 H based laptops don't have any cooling on the PCH which can substantially cripple TB3 performance under load, not sure if this is the case with the GS65 or not.

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nando4
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Posted by: @eightarmedpet

Posting a link here as not sure how many folks frequent the sub, super interesting results, roll on next gen small MacBook Pros (13/14, as I have had to admit 16inch won't fit on my tiny desk).

https://www.reddit.com/r/eGPU/comments/e2lpbh/egpu_comparison_ice_lake_vs_coffee_lake/

These results confirm that Coffee Lake "H" CPUs on PCs have performance issues as we've discovered here. Namely PCH throttling and some other missing optimizations. 

We need a older "U" CPU without integrated TB3 versus Ice Lake "U" CPU with integrated TB3 comparison to see if integrating the TB3 controller yields any performance gains.

 

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irev210
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Posted by: @nando4
Posted by: @eightarmedpet

Posting a link here as not sure how many folks frequent the sub, super interesting results, roll on next gen small MacBook Pros (13/14, as I have had to admit 16inch won't fit on my tiny desk).

https://www.reddit.com/r/eGPU/comments/e2lpbh/egpu_comparison_ice_lake_vs_coffee_lake/

These results confirm that Coffee Lake "H" CPUs on PCs have performance issues as we've discovered here. Namely PCH throttling and some other missing optimizations. 

We need a older "U" CPU without integrated TB3 versus Ice Lake "U" CPU with integrated TB3 comparison to see if integrating the TB3 controller yields any performance gains.

 

At the end of the blog post, that person did mention:

One thing to note is that I WILL update this blog with eGPU results from Comet Lake after I complete my review of the MSI Prestige 14. Target is Mid-December, just before the holidays.

 

I'd imagine that the 2 extra cores + faster clocks on comet lake will absolutely pounce ice lake despite not having on-die TB3.  I'd just love to see benchmarks to confirm this.

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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nu_ninja
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It depends on if the CPU or GPU is the limiting factor. If these gains in that post are accurate relative to other U-class CPUs, then ice lake could be a good choice for those with a mid-range GPU that won't be bottlenecked by a reasonably fast quad-core, hyperthreaded cpu. But of course the CPU vs GPU load varies by application and game so it could depend. Definitely will be looking for those benchmarks when they come out.

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kisscoool18
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I just received my new MSI Prestige 14 A10SC laptop (with a Comet Lake 10710u CPU), to replace my XPS 13 9370. I use a Razer Core X enclosure, and I have a GTX 1080 and a 5700xt. I'm very interested in testing the potential better integration of thunderbolt in Comet Lake, any idea how to proceed? Just classic benchmark comparison on différents games and benchmarks?

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