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Head-to-head · Best Cpu Air Coolers

Deepcool Gammaxx 400 V2 vs Thermalright AXP90-X47

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Thermalright AXP90-X47 comes out ahead by a clear margin (4.5 vs 3.8). The gap is mostly about users needing high-performance low-profile cooling — read the strengths below before deciding.

Deepcool Gammaxx 400 V2
Ranked #7 in Best Cpu Air Coolers
Deepcool Gammaxx 400 V2
4 sourcesall derived

Tom's Hardware reviewed the Deepcool Gammaxx 400 V2 and noted it features an upgraded fan with a wider RPM range (500-1650 RPM) and reduced noise profile at 27 decibels. The cooler supports up to 180 watts TDP, representing an improvement over the original model. YouTube reviewer Mike from Mike's Unboxing Reviews highlighted its affordability. This cooler is best suited for budget-conscious builders seeking basic cooling performance without significant upgrades.

Strengths
  • — New fan with wider RPM range of 500-1650 RPM
  • — Reduced noise profile at 27 decibels compared to previous version
  • — Increased TDP support up to 180 watts
Watch-outs
  • — Limited performance gains over previous Gammaxx 400 version
  • — No significant improvements in cooling efficiency beyond fan upgrade
Buy at bhphotovideo.comFull review →
Thermalright AXP90-X47
Higher ratedRanked #2 in Best Cpu Air Coolers
Thermalright AXP90-X47
3 sourcesall derived$38as of Oct 2

The Thermalright AXP90-X47 Full is an all-copper low-profile CPU cooler that delivers exceptional performance within its 47mm height constraint, according to sff.gg. It outperforms all other coolers in its class and is considered one of the best available. The cooler features a 4x 6mm copper heat pipe design with a nickel-coated copper base and cooling fins. While it offers excellent cooling performance, the mounting system requires securing from the back of the motherboard, which is considered outdated. The included orange stock fan is not aesthetically compatible with most systems, though the review recommends swapping it for an NF-A9x14 or RTX 4070 CNC fan.

Strengths
  • — All copper construction with 4x 6mm heat pipes and copper base for superior thermal performance
  • — Outperforms all other coolers in the 47mm height class
  • — Compact 47mm profile suitable for low-profile builds
Watch-outs
  • — Outdated mounting system that secures from the back of the motherboard
  • — Stock fan is only available in orange and doesn't match most system aesthetics
$38 · Buy at us.computerorbit.comFull review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

Deepcool Gammaxx 400 V2

The Deepcool Gammaxx 400 V2 offers a wider RPM range and reduced noise but provides only modest performance gains over its predecessor, unlike the Thermalright Phantom Spirit 120 SE which includes an extra heat pipe. Compared to the be quiet! Pure Rock Pro 3 Black, it lacks dual fans and a more advanced design, though it's significantly more affordable and suitable for AM4 platform users.

Thermalright AXP90-X47

The Thermalright AXP90-X47 delivers superior performance in a low-profile design, outperforming the AXP90-X36 in terms of cooling efficiency and heat pipe count. Unlike the ID Cooling IS-47-XT v2, it uses all-copper construction and offers better performance despite its outdated mounting system, though it lacks the flexible installation features of the IS-47-XT v2.

Specs side-by-side

SpecDeepcool Gammaxx 400 V2Thermalright AXP90-X47
Noise Level27 dBA22.4 dBA
CompatibilityAM4Intel: 1200/1700, AMD: AM4/AM5
Price£15-£29—
Height155 mm47mm
Heat Pipes4 sintered powder heat pipe4x 6mm copper heat-pipes, copper base (nickel coated), copper cooling fins
Fan Size120 mm90x15mm
Cooler TypeAir Cooler—
Dimensions129×77×155 mm94.5 mm x 95 mm x 32 mm
Voltage12 VDC—
Wattage2.16W—
MaterialCopper—
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