Statistics · 120 CPUs · 70 coolers
How much RAM clearance dual-tower coolers really have (19 coolers measured)
11 of 19 dual-tower coolers (58 %) cannot clear a 44 mm RGB memory module under their front fan in the stock position; the median clearance among restricted models is 42 mm.
Reviewed by Farrukh Sufyan SarwarHow we estimate temperaturesModel v1.2 · data updated
The numbers
| Cooler | RAM clearance (mm) | Height (mm) | What fits |
|---|---|---|---|
| Noctua NH-D15 | 32 | 165 | Low-profile only |
| Noctua NH-D15 G2 | 32 | 168 | Low-profile only |
| be quiet! Dark Rock Pro 5 | 37 | 168 | Low-profile only |
| be quiet! Dark Rock Pro 6 | 37 | 168 | Low-profile only |
| Cooler Master Hyper 622 Halo Black | 40 | 157 | Standard heatspreader only |
| Thermalright Peerless Assassin 120 Digital ARGB | 42 | 157 | Standard heatspreader only |
| Thermalright Peerless Assassin 120 SE | 42 | 155 | Standard heatspreader only |
| Thermalright Peerless Assassin 120 Vision MAX ARGB | 42 | 157 | Standard heatspreader only |
| Thermalright Peerless Assassin 140 | 42 | 157 | Standard heatspreader only |
| Thermalright Peerless Assassin 140 Digital | 42 | 157 | Standard heatspreader only |
| Thermalright Phantom Spirit 120 SE | 42 | 154 | Standard heatspreader only |
| Thermalright Phantom Spirit 120 EVO | 44 | 158 | Tall RGB (44 mm) fits |
| Cooler Master MasterAir MA624 Stealth | 45 | 165 | Tall RGB (44 mm) fits |
| ID-Cooling FROZN A620 Pro SE | 45 | 157 | Tall RGB (44 mm) fits |
| be quiet! Dark Rock Elite | 45 | 168 | Tall RGB (44 mm) fits |
| Thermalright Peerless Assassin 120 | 47 | 155 | Tall RGB (44 mm) fits |
| Noctua NH-D12L | 50 | 145 | Tall RGB (44 mm) fits |
| Scythe Fuma 3 | 55 | 154 | Tall RGB (44 mm) fits |
| Noctua NH-D15S | 65 | 165 | Tall RGB (44 mm) fits |
Method
Manufacturer-specified maximum memory height under the front fan, stock position, for 19 dual-tower coolers. 44 mm is the height of common RGB kits (Corsair Vengeance RGB); 38 mm a standard heatspreader; 32 mm a bare module.
Full formula and constants on the methodology page.
Notes and citation
- 5 coolers fall below the 42 mm threshold this site uses for its dual-tower RAM clash warning.
- Raising the front fan restores clearance at the cost of added height.
Cite as: CPU Cooler Check, “How much RAM clearance dual-tower coolers really have (19 coolers measured)”, 2026-09-18, https://cpucoolercheck.com/stats/ram-clearance-dual-tower-coolers. Data licensed CC BY 4.0.