Looking through the official specs of the Thermalright HR22 (silver) and comparing them to what is known about the HR22 Plus (black) I can't see any real difference except for in the anodised aluminium finish. However finish/colour can be a consideration in thermal design, depending on the application. Otherwise they look to be the same design, both feature 8x 6mm heatpipes, and weigh in at 1120g (comparison image below).
The HR22 is claimed to be OK for cooling CPUs up to 65W in passive mode. The following key specs are shared by the Thermalright website:
- Dimension: L150mm x W120mm x H159mm
- Weight: 1120g
- Heat pipes: 6mm heatpipe*8 units
- Fin: T = 0.5 mm ; Gap = 2.8 mm
- Fin Pcs: 35 pcs
- C1100 Pure copper nickel plated
Motherboard to Fin:
- 36 + 8 = 44 mm 46 + 8=54 mm
Optionally, users can install some push-pull fans (120mm) to cool CPUs with TDPs up to 200W.
Motherboard compatibility is said to be as follows:
- Intel: Socket LGA 1150/1151/1155/1156/1366/2011/2011-3
- AMD: Socket AM2/AM2+/AM3/AM3+/FM1/FM2
But Thermalright says that it won't fit on any Mini-ITX designs. Due to its mass, it is probably best for systems where the motherboard is in a horizontal orientation. One last thing that might be a difference between the HR22 and HR22 Plus is that the latter's packaging lists Intel Socket 2066 compatibility, not a spec listed on the silver model product page, but the site might just need a textual update.
We don't have pricing or availability info for the Thermalright HR22 Plus black. It looks like it is available in China right now. Those from other regions that are interested are encouraged to write to firstname.lastname@example.org and ask about it.
All Thermalright HR22 Plus black images came from ChipHell.com.