Lenovo Legion Y740S – gaming laptop without a dGPU?

3D/PCMark and Unigine Heaven/Superposition

Gaming laptops in a thin body often suffer from two flaws – overheating and short battery life. What to do if you want high processor performance, but in a thin body, with good battery and at the same time not lose graphics performance when you are at home or at work? A gaming notebook with dedicated graphics card will always be heavier than an ultrabook and will not offer such battery life. On the other hand, ultrabooks lack CPU performance. The Legion Y740S resolves this dilemma.

3D/PCMark and Unigine Heaven/Superposition

The combined PCMark 10 test shows only a 14% difference between the performance of the default notebook and the eGPU configuration. With the additional graphics card, it beats the M15 by 3% and lags behind the OMEN 15 by 2%.




Gaming-oriented 3DMark Firestrike and Time Spy show quite different results. Let’s start with Firestrike. eGPU delivers 9x the performance of iGPU, yet loses 49 and 66% to OMEN and Asus. In Time Spy, the situation turned around, here the Y740S is already 3% faster than OMEN and beats the G14 by 22%. The performance compared to iGPU is almost 15 times as high. However, it still loses by 13% to the M15. Sky Diver shows different results though. The increase against iGPU is only 5-fold, losing 31% to OMEN, 9% to G14, but beating the M15 by 10%.






Tests focused on RTX and DLSS functions show very similar performance with OMEN 15. In Port Royal, the Y740S with eGPU is 5% faster. When DLSS is off, the fps are identical, when switched on, OMEN is slightly more powerful, by 3 and 11% depending on the DLSS version. The comparison with the G14, which has an RTX 2060, is also interesting. Here, the Legion already offers 20–30% higher performance.



Unigine Heaven gaming tests already show a higher potential of the RTX 2070, although in the mobile versions, in the M15 also OMEN 15. The Legion with eGPU thus lags behind by 18 and 53%. On the contrary, it is 4% faster compared to the G14. In higher resolution, the differences have significantly decreased, OMEN is only 2% faster and M15 by 29%. The lead over the G14 has also increased to 20%.



The latest graphics tests of Unigine Superposition tell us about the higher performance of the Legion with eGPU by 12 and 9% against the OMEN 15. To the M15, however, it loses 17 and 21%, but the G14 achieved a 31 and 23% lead.

  •  
  •  
  •  
Flattr this!

Leave a Reply

Your email address will not be published. Required fields are marked *