Khory

I'd use matching fans at the same speed. Wouldn't the increase in static pressure allow more of the rated airflow to come through the radiator?

Is there any situation where push/pull would result in less airflow on the other side of a radiator? My situation is a front mounted radiator set up as intake. Temps are decent but I'm looking into getting better fans to get a little more flow into the case and maybe a little less noise. I know that pull fans aid in pulling air across the radiator, but do they affect the volume of air that comes out the other side? I imagine they'd help but I'd like to be sure.

My question is similar to the OP. Assuming you found an air flow fan that had similar rpms and didn't cause an unacceptable level of turbulence/noise, would AF fans on the pull side result in more airflow inside the case? The reason I ask is that I have a Kraken X62 mounted in the front (top's not a n option) as intake with SP fans in push/pull. I have temps at an an acceptable level but I wouldn't mind a little more flow to the GPU so I could back off the fans on the card some. I have quite a bit of thermal headroom on the CPU so I'd be willing to sacrifice some heat there to bring the GPU down some.

I'll keep that in mind about the front to top air flow. I do suspect that a lot of the intake is being removed from the case by this fan. I think I will experiment with the front top fan. My first attempt will be to disable the top front fan completely, cover that slot with the sound proofing panel the case came with, and see what happens. If i'm lucky air flows front to back unimpeded and I see an improvement. If not, I plug the fan back in and I try something else. I will continue to work on my fan curves too. I think they are pretty good mix of temp to noise. Nothing is dire, just trying to squeeze what extra I can.

Top mounting the radiator is not an option in this case.

To start here is my build I have the radiator front mounted with the NZXT fans set up for push/pull. The thought is that with that case the intake could use as much help as possible. The top (2x140) and rear (1x120) are air flow fans set up as exhaust. I have these set on a fan curve that rises gradually with GPU temp (for now). I have yet to OC the CPU but so far temps on that are great. The GPU however gets a little high. It hits 70C on the Heaven benchmark and 74-78C in real world usage on games like Overwatch, Witcher 3, and Destiny 2. I use a custom fan profile in EVGA Precision that puts the fans to 80% at 70C and goes up from there until it maxes out should the card hit 90C. I can live with these temps if I have to. If a different fan setup can improve upon this then I definitely want to take advantage. Any suggestions on what I could change to improve the thermals of the GPU without buying or replacing hardware? I am considering either changing the top front to an intake OR removing it completely (might be interrupting the flow of cool air before it reaches the gpu area). I'd appreciate any guidance you may have. Thanks.