The performance gain is basically zero - the advantage of direct contact pretty neatly cancels out the disadvantage of low surface area in my tests. Manufacturing cost is where my design really shines.
Minimal flow restriction is important in improving thermal performance of the system as a whole. I'm not trying to gauge people's priorities in terms of CPU vs GPU cooling with this survey; I'm trying to figure out how important block "performance" (consisting of thermal performance and optimal...
All waterblocks I've seen (note that I mean just the blocks, not self-contained cooling systems) work with CPU-only or multi-block systems. Can you please clarify what you mean by "restriction?"
Thanks for the feedback. I've updated the blurb for that question to reflect the fact that I'm looking for importance relative to other components of the liquid cooling system.
Over the past year, I've been working on designing a new type of waterblock for computer liquid cooling. If you could please take five minutes to fill out this eight-question survey about your waterblock preferences, it would be enormously helpful in my efforts to bring my invention to market...