Good day eGPU users!
I bougth the Lenovo Yoga c940 15 IRH recently. I thought I would give me a fine upgrade over the Lenovo Yoga 720 15 IKB I allready own. However:
The c940, when connected to my Razer Core X Chroma, offers about 12% less FPS than my Yoga 720 eventhough the c940 has a better CPU and a higher bandwith - if not for "device to device bandwith", which is about 5,2% lower with the c940 according to CUDAZ.
Yoga 720 Results:
- GPUZ+CUDAZ (see above)
- Red Dead Redemption 2 -> 57 FPS
- Spellforce 3 -> 53 FPS
- Shadow Warrior 2 -> 104 FPS
- The Witcher 3 -> 84 FPS
Yoga c940Results:
- GPUZ+CUDAZ (see above)
- Red Dead Redemption 2 -> 46 FPS
- Spellforce 3 -> 63 FPS
- Shadow Warrior 2 -> 94 FPS
- The Witcher 3 -> 78 FPS
Especially the really bad performance in Red Dead Redemption unnerves me...
Is there a chance to improve this result (tried different Drivers and diferent TB3 drivers) I`d be greatful for any hint.
Thx
phila
Lenovo Yoga c940 15": i7-9750h / GTX 1650 Max-Q / 16 GB RAM / 1 TB NVMe @ Razer Core Chroma: RTX 2070 Super / 1 TB SSD / 2 TB RAID 1 / AOC C3583FQ / LG 1500 / G 604 / G 613 / Sony MDR 1000
Did you disable the c940’s factory-set “Intelligent Cooling” mode?
Are you running the laptop in “Performance” mode?
2018 Mac Mini i5 / 6-core 3.0-4.1 Ghz / 32GB / 256GB / Intel UHD 630 / PowerColor Gaming Station / PowerColor dual-fan RX5700 XT / Mac OS 10.15.4 Catalina / Windows 1809 / LG 27" 4K display
@mini-i5, Thank you for your reply! Yes, I tried both of those options. I as well disabled the discrete GPU in bio as well just to check. All of this does not seem to influence performance.
I know that some games might behave differently on some systems - but I just do not get how the differenceon RDR 2 can be about 23% given that the 940 should have an advantage due to the processor (as one can see in Spellforce 3). This indicatest, that something is limiting the graphics bandwith...
Best regards
phila
P.S.: On Kingdome Come Deliverance however the performance seems to be as expected in this single case the c940 clearly beats the 720...
Lenovo Yoga c940 15": i7-9750h / GTX 1650 Max-Q / 16 GB RAM / 1 TB NVMe @ Razer Core Chroma: RTX 2070 Super / 1 TB SSD / 2 TB RAID 1 / AOC C3583FQ / LG 1500 / G 604 / G 613 / Sony MDR 1000
RDR performance varies a lot for everyone.
Here’s some game settings that might be helpful.
2018 Mac Mini i5 / 6-core 3.0-4.1 Ghz / 32GB / 256GB / Intel UHD 630 / PowerColor Gaming Station / PowerColor dual-fan RX5700 XT / Mac OS 10.15.4 Catalina / Windows 1809 / LG 27" 4K display