The Cooler Master Hyper D92 does count as compact with dimensions of 5.7 x 3.3 x 4.9", at 448g it is lighter than many coolers on the market and with 53.4mm of clearance over your DIMM slots it should not interfere with most RAM.  The reduction in size does have an effect on the heatsinks ability to disperse heat but The Tech Report's testing shows better performance than the stock Intel heatsink when cooling an i5-4690K and at a lower noise level.  The performance is not up to snuff for overclockers nor are the stock fans quiet enough at full speed for those wanting a near silent build but for those looking for a good compromise between those two scenarios at a decent price it is well worth considering the Hyper D92

"The Hyper D92 is a compact tower-style cooler with dual 92-mm fans. We tested its performance on stock-clocked and overclocked CPUs to see how it stacks up."

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CASES & COOLING