Icelake with integrated TB3 controllers completely crushes non-Icelake CPU's wit...
 
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Icelake with integrated TB3 controllers completely crushes non-Icelake CPU's with external controllers in performance (up to 40% gains...)  

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Lycid
(@lycid)
Eminent Member
Joined: 1 year ago
 

Just saw this and surprised more people aren't talking about it here?

 

 

The difference in performance is so massive, despite being a "weaker" processor, that I'd argue it's foolish to invest into a high-end eGPU setup without an icelake CPU. I'm really regretting my RB15 purchase I did last year now. I'll need to replace it if I want to invest into the 3XXX series and actually take advantage of it. So much for me getting an eGPU + this laptop as a means to have my setup be close to as future proof as a desktop!

Laptop: Razer Blade Advanced 15" w/ GTX 2060, i7 8750H, 16GB RAM
eGPU: Razer Core x Chroma w/ 2080ti


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lwf
 lwf
(@lwf)
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Joined: 5 months ago
 

I'm on Ice Lake and I am not seeing any dramatic improvements in real world performance. With an RX580 I was getting slightly worse performance than the person who maintains the RX580 gaming on eGPU thread, and I think they are on a 4th or 5th gen CPU.

2020 15" Lenovo Slim 7 [10th,4C,G] + RTX 3070 @ 32Gbps-TB3 (ASUS XG Station Pro) + Win10 [build link]  

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Lycid
(@lycid)
Eminent Member
Joined: 1 year ago
 

An RX580 is quite literally 2-3X less powerful than a 3090 though, so it likely isn't straining TB3 enough for it to be a performance factor.

Laptop: Razer Blade Advanced 15" w/ GTX 2060, i7 8750H, 16GB RAM
eGPU: Razer Core x Chroma w/ 2080ti


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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

This video simply highlights the TB3 performance deficits seen in 8th-gen or newer H-CPU systens with unoptimized BIOS. Older U-CPU systems are not affected. Consider some background reading in this thread:

https://egpu.io/forums/builds/2015-15-dell-precision-7510-q-m1000m-6th4ch-gtx-1080-ti-32gbps-m2-adt-link-r43sg-win10-1803-nando4-compared-to-tb3-performance/

 

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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joevt
(@joevt)
Noble Member
Joined: 3 years ago
 

The video compares Ice Lake 1065G7 and Comet Lake 10750H. Ice lake does better with eGPU because it uses iTBT (integrated Thunderbolt) instead of dTBT (discrete Thunderbolt).

Tiger Lake 1165G7 will have iTBT (Thunderbolt 4) so it should also have good eGPU performance.

FYI, OWC is taking preorders for a Thunderbolt 4 hub (3 downstream Thunderbolt ports, one USB type A port). It doe not advertise Mac compatibility but I'll try it anyway (I don't have any Tiger Lake CPUs so I don't know what functionality, if any, will work).

 

 

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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tsakal
(@tsakal)
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Joined: 2 years ago
 

I have the latest mbp 12 2020 4TB and it is not much different than the 2018 model mbp 13 4TB. CPU is about 10% faster but with a 5700xt the performance seems similar to me. However , the new one seems to run a bit cooler. 

A) 2020 MacBook Pro, i7-1038NG7, 32GB RAM, 1TB, EGPU Razer Core X, Nitro+ RX5700 xt 8Gb, Samsung 65 Q70R
Mac OS Catalina 10.15.5, Internal Bootcamp Windows 10 2004 pci.sys swap.
B) 2.7 GHz I7 4 Cores, 16Gb, 1TB MBP 13 2018 TB3 , EGPU Razer Core X, Nitro+ RX5700 xt 8Gb, LG 32UK550
Mac OS Catalina 10.15.2, Ext SSD Windows 10 1903 V1 .295

C) 2.7 GHz I7 4 Cores, 16Gb, 1TB MBP 13 2018 TB3 , EGPU Gigabyte Gaming Box RX580 8Gb, Mac OS Catalina 10.15.2, Ext SSD Windows 10 1803

D) 3.1 GHz I7, 16Gb, 1TB MBP 13 2015 TB2 , EGPU Gigabyte Gaming Box RX580 8Gb


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Lycid
(@lycid)
Eminent Member
Joined: 1 year ago
 

@joevt

 

Interesting, I'll have to keep an eye out on Tigerlake and maybe save up for an early upgrade when it comes around.

 

Laptop: Razer Blade Advanced 15" w/ GTX 2060, i7 8750H, 16GB RAM
eGPU: Razer Core x Chroma w/ 2080ti


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joevt
(@joevt)
Noble Member
Joined: 3 years ago
 

@lycid, Tiger Lake laptops have started to appear. Search for laptops with any of the following CPUs:

U-series
Series: Tiger Lake Tiger Lake UP3   cores / threads  cache  
Intel Core i7-1185G7 3.0 - 4.8 GHz      4 / 8        12 MB
Intel Core i7-1165G7 2.8 - 4.7 GHz      4 / 8        12 MB
Intel Core i5-1145G7 2.6 - 4.4 GHz      4 / 8         8 MB
Intel Core i5-1135G7 2.4 - 4.2 GHz      4 / 8         8 MB
Intel Core i3-1125G4 2.0 - 3.7 GHz      4 / 8         8 MB
Intel Core i3-1115G4 3.0 - 4.1 GHz      2 / 4         6 MB

Y-series
Series: Tiger Lake Tiger Lake UP4   cores / threads  cache  
Intel Core i7-1180G7 2.2 - 4.6 GHz      4 / 8        12 MB
Intel Core i7-1160G7 2.1 - 4.4 GHz      4 / 8        12 MB
Intel Core i5-1140G7 1.8 - 4.2 GHz      4 / 8         8 MB
Intel Core i5-1130G7 1.8 - 4.0 GHz      4 / 8         8 MB
Intel Core i3-1120G4 1.1 - 3.5 GHz      4 / 8         8 MB
Intel Core i3-1110G4 2.5 - 3.9 GHz      2 / 4         6 MB

And make sure they have Thunderbolt 4.

Amazon.com and NewEgg.com have search results.

For the 1165G7, www.notebookcheck.net has four reviewed laptops:
- Acer SF514-55T (Intel Iris Xe G7 96EUs, 14")
- Acer Swift 5 (2021) (Intel Iris Xe G7 96EUs, 14")
- Asus ZenBook 14 UX425EA (Intel Iris Xe G7 96EUs, 14")
- Asus ZenBook Flip S UX371 (Intel Iris Xe G7 96EUs, 13.3")

But maybe should wait for someone to compare Tiger Lake and Ice Lake eGPU performance.

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@joevt, I'm picking up an HP Spectre x360 2-in-1 15.6" [15-eb1043dx] to test this weekend. It has i7-1165G7 and one Thunderbolt 4 port. Performance should be similar with a well-optimized Ice Lake system. The only performance improvement would come from an eGPU enclosure with a newer Thunderbolt controller implementation. I tested an eGPU prototype [build link] earlier this year and H2D speed was close to 3,000 Mbps. Due to NDA I could not take it apart to see what it was.

As @nando4 has mentioned and linked to his well-researched topic, the H-systems are suffering due to unoptimized Thunderbolt 3 connection. You can see an optimized H-CPU system such as 2019 16-in MacBook Pro beating Ice Lake systems in eGPU performance; @bmagnien shared results from his setup using Mantiz Saturn Pro + RTX 3090 [build link]. Another clear example is @mo_oi's RTX 3080 eGPU performance between HP OMEN 17-cb0065TX vs 2017 27" iMac 5K [build link].

@lycid We don't discuss these YouTube videos because many of them have rather limited exposure to this technology. They often lack depth and use shocking observations for views. The bottom line is Intel has done a shit job in educating people on Thunderbolt in general and eGFX in specific. We try to share information as we learn but our voices don't echo as far.

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 15" HP Spectre X360 [11th,4C,G] + RTX 2080 Ti @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 [build link]  


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joevt
(@joevt)
Noble Member
Joined: 3 years ago
 

@itsage, by the device IDs 0x15ef and 0x15f0, the prototype eGPU obviously uses a Titan Ridge controller, but not sure if it's the JHL7540 or the JHL7440. The document at https://downloadmirror.intel.com/28658/eng/TBT_Release_Notes_17.4.77.400.txt seems to suggest JHL7440 but why would they use a chip that has USB-C support? My HP Thunderbolt Dock G2 has USB-C support, but the USB controller has ID 0x15EC while the bridge is 0x15F0. I haven't been able to open it up to find out which chip it uses. Maybe the PCI IDs database needs correction.

 

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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