A4 H2O vs C4sfx

Im planning to move into a sff case next summer and was deciding between these 2. Whats the difference in temps between an a4h2o+240 aio and a c4sfx v1+280 aio. Im leaning towards getting the a4h2o, but if i can get the upcoming c4sfx v2 by summer i might get that instead. currently have a 7800x3d and a 5070 ti.