Six years of membership and 30 rep points later, you should by now know that there is no "best"..
Regardless and starting backwards, no, none can match them, but the single degree delta difference range is for most negligible.
Far as the former goes? https://noctua.at/en/products/cpu-co.../specification
Quiet enough at stock and if one's after numbers, better 140 fans do exist; no other "top down" i'd recommend in general. In general because again, there is no "best".
As always, my take is not only on performance (though in this case we're spon on on that one), but also on "pay now and regret not later", ease of use and reliability/quality assurance. You can't beat Noctua there.
If you have the space for a tower cooler, there's no reason to get a downdraft cooler. The only reason to get a downdraft cooler is if you're height restricted, then the restriction determines which is most suitable. In my instance, it was the Scythe Big Shuriken 3 with an NF-A12x25. Not exactly the most cost-effective solution at ~$80 total, but I needed as much cooling as I could get for an i9-9900KF.
What are the best Ryzen 9 and 10th gen Intel CPU top down coolers available today? Can any top down coolers match the performance of dual tower coolers?
At high heat load probably not. They have fewer heatpipes and if using with fan pushing air toward motherboard tend to end up re-using their own heated exhaust air as hits mobo turning out, hits RAM, GPU etc turning up along side of cooler & fan where it's drawn back into cooler. But as ciarlatano said, they can do a very good job.
What system and case are you planning to use one on?
Phanteks Owners ClubWays to Better Cooling
i7 980 @ 3.55GHz =PH-TC14PE w/2x TY-143 fans =Crucial Ballistix 3x4GB =GA-X58A-UD5 =ASUS GTX580 DirectCU II =Enermax Modu84+ =Define R2 w/3x TY-140 case intake fans; all PWM controlled by CPU fan socketPhanteks Enthoo Primo MoBoRampage III ExtremeCPUi7 980X @ 4.0GHz =R1 Ultimate w/2x TY-143 fans =Dominator GT 6x2GB =Rampage III Extreme =ASUS GTX580 DirectCU II =TX850 =Enthoo Primo w/ custom castor base
I tried a Phanteks PH-TC14CS with my old 5820k build, even outside of a case and with more powerful fans fitted, it couldn't keep up with the heat load when overclocked. I liked the idea of downdraft coolers because I thought they might help keep the VRM circuitry cooler. I was hoping they had come out with something better since then.
On my old q9550 build I used a downdraft Thermaltake Big Typhoon with a 120x38mm fan and two stacked 120x20mm phobya ducts and had to cut a hole in the sidecover of my case to accommodate the height it seemed to work really well even considering the Big Typhoon wasn't highly regarded.
My bad, assumed it would be decently capable considering their other coolers and the amount of girth.
You would think, but somehow Phanteks couldn't get a handle on TF coolers. Their other, the TC12LS was ok, but only ok, and not as good as it's size would indicate. But, not every company can do everything well. Phanteks makes great towers, cases and some liquid cooling products (along with some clunkers). Their blocks are beautiful and vastly underappreciated.
Yeah....the little girl hentai avatar is really creeping me out....