GPU Temp Confusion after water loop

[shane.r.cifaldi]

I had a question about the current temps I'm seeing in my water loop in regards to my CPU and GPU. Before I had this custom loop I had a corsair h115i Premium (280mm)  going to CPU and the combination of the Kraken G12 bracket and a Kraken x52 (240mm) going to my GPU (1080ti). Temps at idle was 22c for GPU and 28c for CPU - ~55c for CPU under load and ~38c for GPU under load. Those are very good temps. I expected to beat those temps when I went to my new custom loop - specs below - however - CPU idle temps and load temps are the same for the most part but GPU temps are now idle at ~30c and load ~55c. How did I gain 20c almost on my GPU at load?

Loop order is - Res > Pump > rad (360mm inake) > gpu > cpu > rad(240mm exhaust) > res 

240ek extreme rad as exhaust up top 

ek360 slim ran on the side as intake

the only thing that changed is I upgraded to a 2080ti from the 1080ti.

CPU is an i9-9900k OC'd to 5.0 Ghz al cores at 1.295 vcore.

Thoughts? 

 

[shane.r.cifaldi]

 I should also add that fluid temp from an external sensor in my reservoir is reading 25c