Side by side
Thermalright Phantom Spirit vs Thermalright Peerless Assassin
Thermalright Phantom Spirit
245 positive (94%) · 10 mixed (4%) · 6 negative (2%)
Trust + time weighted: +93%
AI summary — not a quote
The Thermalright Phantom Spirit is widely regarded on Reddit as a top-tier value air cooler, frequently recommended for its ability to handle high-performance CPUs like the Ryzen 7 9800X3D at a fraction of the cost of premium competitors. While it is praised for its 7-heatpipe dual-tower design and quiet operation, some users note it may struggle with the most heat-intensive Intel processors or in cases specifically optimized for liquid cooling.
Pros
- Exceptional price-to-performance ratio, often cited as being available for $20 to $40.
- Effective cooling for high-end gaming CPUs, including the Ryzen 7 9800X3D and Intel i5-14600K.
- Features a 7-heatpipe dual-tower design that competes with much more expensive coolers like the Noctua D15.
- Quiet operation at idle and under load.
Cons
- Can reach high temperatures (90-95°C) with extremely power-hungry CPUs under heavy load.
- Large physical footprint can interfere with RAM clearance or fitment in certain cases.
- Performance gains over the older Peerless Assassin are marginal, often only a few degrees.
Top excerpts
but if you want similar performance for much, much cheaper, go with phantom spirit or peerless assassin
Sorry I forgot that. I have a Thermalright Phantom Spirit. I updated the post.
you can get something relatively inexpensive like a thermalright phantom spirit.
I've been running a phantom spirit cooler with a 9800x3d with no issues and it's 20 bucks. Can't beat that for the money.
A cheap phantom spirit cools my 9800x3d just fine.
Thermalright Peerless Assassin
264 positive (90%) · 19 mixed (6%) · 11 negative (4%)
Trust + time weighted: +87%
AI summary — not a quote
The Thermalright Peerless Assassin is widely regarded by the PC building community as the gold standard for value-oriented air cooling. It is frequently cited for providing performance that rivals premium air coolers and even some liquid coolers at a fraction of the cost, typically retailing between $30 and $40.
Pros
- Exceptional price-to-performance ratio, often beating coolers twice its price.
- Capable of cooling high-end gaming CPUs like the AMD Ryzen 7800X3D and 5800X with ease.
- Significantly outperforms older budget staples like the Cooler Master Hyper 212.
- Dual-tower, dual-fan design provides robust thermal headroom for most consumer builds.
Cons
- Occasional quality control issues, such as units arriving with bent cooling fins.
- Included fans may develop rattling noises or underperform over long-term use.
- May struggle with the most extreme high-TDP processors (like the 9950X3D) under sustained heavy workloads.
Top excerpts
but if you want similar performance for much, much cheaper, go with phantom spirit or peerless assassin
Are you so unhappy with your current performance that you're willing to bet $35 (Thermalright peerless assassin) on the potential for improvement?
My 5800x absolutely flies. I use a Peerless Assassin to cool it.
A good air cooler like the Peerless Assassin or AK620 is more than enough
Many people find the Thermalright Peerless assassin to have virtually identical performance for 1/4 the cost of my Noctua.