




🚀 Ryzen 9 3900XT: Power, Precision, and Performance Unlocked
The AMD Ryzen 9 3900XT is a top-tier 12-core, 24-thread desktop processor delivering up to 4.7 GHz boost clock speeds. Designed for gamers, creators, and multitasking pros, it features 70 MB of Gamecache and supports PCIe 4.0 on advanced AM4 platforms. Unlocked for overclocking, it demands robust cooling solutions to maintain optimal performance, making it a future-proof powerhouse for high-end desktop builds.





| ASIN | B089WD454D |
| Best Sellers Rank | #342 in Computer CPU Processors |
| Brand | AMD |
| CPU Manufacturer | AMD |
| CPU Model | Ryzen 9 3900X |
| CPU Socket | Socket AM4 |
| CPU Speed | 4.7 GHz |
| Cache Memory Installed Size | 70 |
| Cooling Method | liquid |
| Customer Reviews | 4.8 out of 5 stars 1,836 Reviews |
| Global Trade Identification Number | 00730143312257 |
| Item Type Name | Desktop Processor |
| Item Weight | 1 Grams |
| Manufacturer | AMD |
| Mfr Part Number | 100-100000277WOF |
| Model Number | AMD Ryzen 9 3900XT |
| Platform | Linux, Windows |
| Processor Brand | AMD |
| Processor Core Count | 12 |
| Processor Count | 12 |
| Processor Number of Concurrent Threads | 24 |
| Processor Series | Ryzen 9 3900X |
| Processor Socket | Socket AM4 |
| Processor Speed | 4.7 GHz |
| Secondary Cache | 70.0 |
| UPC | 730143312257 |
| Unit Count | 1.0 Count |
| Warranty Description | 3 year manufacturer |
| Wattage | 105 watts |
C**O
Should Serve Me Many Years
Way more processor than I typically need. I do like to run lots of screens and have many apps/windows open, and this CPU should last me for many years. My motherboard and accompanying software set things up automatically with a modest 12% OC to all 12 cores. This default configuration is keeping all the cores locked at 4.275mhz. From what I can tell in using the machine it runs pretty cool/quiet for a configuration that is keeping everything running full speed at all times. Each core seems to be pulling from 11 to 14 watts of power depending on the load. My cooling is nothing fancy, just a cheap 240 type AIO kit (had it laying around so might as well use it) in a spacey/airy industrial style rack-mount chassis. No problems keeping temps below 50c in a room kept around 70f. I do use this build for DAW applications. Dorico, Cubase, Finale, and Sibelius are my goto apps in that arena. The sounds and effects I use aren't that CPU intensive, but they can work a storage device pretty hard. I run consumer grade storage devices (no Thunderbolt, SCS, or anything like that) on NVMe or SATA with the controllers built into my X570 motherboard. I don't do benchmarks and stuff, but the machine feels very snappy/responsive with any task I throw at it so I'm very pleased. On value, I think it really depends on what one needs, and when one is buying. I got mine in the thick of the holiday season shortly before a new generation would be released. I needed it NOW and didn't really have time to wait for the best timing or shop around. For me, there are probably better values out there for my specific needs in the lower ranges or older models, but I guess it never hurts to have some growing/future proofing room. For what I do...this processor should serve me for at least a good 10 years! As long as I don't go back and second guess myself, compare the finer points on value of other models and makes....well, I won't miss any sleep. I'll just enjoy my snappy PC and be happy.
T**R
Smooth as Silk. PowerFull +12-16 FPS Game Cache!
For me , a Gamer, The 64mb of Game Cache was important and being ably to run up to 4600mhz oc memory speeds! (MY MOBO), Besides that, There is no Flaws, Besides it does run a lil Hot under Load, Thats depending on your case Setup of course, But not to Worry, for any one that might, because the normal temps for these are 75c up to 90c. If you Want to OverClock you of course can but will Have to have a WaterCooler, unless you have decent air flow with Minimal OC settings. I came from a Ryzen 7 Seriers From the 5 Series also, So i know what all these cpus can and cant do. Really no reason to OC though. Unless like myself , Stream CoD WarZone in 1440p While Running Game in 1440p Pretty Much Everything MAXED With RayTracing on. and Get a average of 150- up to 200FPS . While streaming its only a 2-4 FPS drop, with of course some unseen Latency Draws, Ryzen 5 i averaged 80-110FPS Ryzen 7 100-130 FPS MY SPECS. Asus Prime x570 Ryzen 9 3900xt / WaterCooled RTX 2070 SUPER 16gb 4133mhz RAM 850 SuperNova Ps. SoundBlaster z pci e / Headset M.2 SSD 32" 1ms Gysnc Curve 2560x1440p 165Hz. Logitech Hero Mouse/ONN Keyboard Win10 x64 Any ? About CPU Or My System Setup Feel Free to ask . THANKS
A**S
Great CPU for Gaming/Fast Workstation
This CPU is one of the top of the line, latest and greatest CPU's. It will run anything that is thrown at it, and compared to Intel, the price is much more friendly. They recommend a water cooler, however, I am using a Noctua NH-D15 cooler in the single fan configuration (dual fans wouldn't fit as my RAM is too tall) - and it keeps the CPU below 60°C during idle and playing games. I have yet to run anything that even pushes the maximum power out of this CPU. I would definitely recommend this as an upgrade, and even for new PC builds. Just be aware that this requires a discreet (separate) graphics card, as there are no integrated graphics. If you have an issue with a BIOS update - AMD will send you a "bootkit" loaner for free, which will allow you to update your BIOS and install your new CPU.
M**I
Good price to performance
Really good cpu
J**T
AMD's Fastest Mainstream Part
Three years ago, I build a system with an Intel i7 7700K. Last month, I replaced that Intel with an AMD R7 3800X, which advertised a 4.5GHz speed, but typically delivered about 4.2 for single core loads and 4.0 for all core. That isn't unusual for Ryzen CPU's, where your "up to" speed and your actual speed will vary by 200-300MHz. The single core speed just wasn't enough of an improvement over my old Intel. It also isn't worth my time (or yours) trying to mess with overclock settings when the chip is pretty well optimized out of the box. Enter the new XT processors. I could have swapped up to the 3800XT, which would have given me the speed bump I wanted, but would have cost $70 more for just that extra MHz. The 3900XT here was $170 more, but delivered 50% more cores as well as the same low-load speed of the lesser XT chip. It's the better value, and likely the more future-proof solution as well, as more software is written to take advantage of high core counts. So what does this 3900XT do? It does indeed hit the 4.7GHz advertised speed on 2 cores (4766MHz to be exact). It will do this while you're browsing the web or otherwise not doing much. Low-to-Medium use cases (e.g. games) will see the chip turbo up to 4.2-4.5GHz. The heaviest loads will see a boost to 4.0-4.2GHz. The exact number depends on the specific kind of program being run. In general, it's a 5-10% improvement over the 3800X. Your exact chip will vary a bit from these figures, likely less than 100MHz. It might also depend on your cooling setup. I stuck my 3900XT into a ITX box and a compact heat sink (pictured). More robust cooling and a more aggressive PBO (a built-in overclocking function) could probably net you slightly better performance. Again, on the order of 100-150MHz. So you could, potentially, see 4.7+ top speeds and 4.6 in-game turbos. However, AMD doesn't leave performance hanging out there. The main thing to consider is why this over the 3900X (no "T") which can be had for $70-100 less. In my case, I was choosing the better binning, the better chance of hitting higher low-thread clocks, and (preferably) lower heat. In short, I wanted a sure bet. The 3900XT delivers. This chip, unless you're hitting all 12 cores with 24 threads, actually runs as cool or cooler than my 3800X. So if you're looking for a lot of GHz and a lot of cores, and money isn't really an object, get this. There will be something new around the corner (there always is) and at that point, maybe you should get that instead. Right here, right now, there isn't a lot that's better.
T**R
Great CPU choice
Thing cranks. Was made for gaming
A**R
Great Buy On Sale
This CPU is comparable to the 3900x its advantages being marginally faster. If you are already on the am4 platform and looking to upgrade just the CPU this is a amazing CPU to pick up on sale for the CPU itself. Runs warmer on my 240mm AIO but isn't impacted and doesn't throttle but wouldn't overclock without better cooling. If its full price just pick up the 3900x that is generally cheaper when in stock.
G**R
super speedy and great for gaming
My i7-4790k wasn't cutting it. I would run at 100% on games and video editing. It was time for a new CPU. So I looked around, and since my son has the R7 2700x and was pleased with it, I decided to go with Ryzen. But I wanted something that I could throw anything at and handle it with ease. I saw the new R9 3900xt, which has a small boost up from the 3900x. So now I have my computer running and WOW, I've been missing a lot. On Minecraft, chunks load a lot faster, not at a snail pace. Need for Speed is great. getting huge fps. With the i7, the game would run the cpu at 100%. This R9 is barely using 7% of it's weight in running NFS. Let's not forget about downloads. This thing is quick. The i7 would take forever. go get snack and take a nap and it's still downloading. But R9, blink your eyes and it's done. R9 3900xt GSkill Flare X C14 3200 ASRock Taichi X570 Samsung SSD
M**O
Alto performance.
Actualize mi procesador de un ryzem 5 a 9 para jugar 4k. Es hermoso
F**O
ottimo
processore top. mai dato problemi. ce l'ho da anni
M**S
Runs hot, but still a great CPU.
This was an upgrade from the 2700X, so that's my basis for comparison (being as the rest of the system is identical). I picked up the XT variant, but how much difference there is between the X & XT is debatable. In terms of power draw, it beats the 2700X handily, with a stable all-core overclock of 4.350GHz at ~1.34v, whereas the 2700X required closer to 1.41v for the same clockspeed. Interestingly both the 2700X & 3900XT have similar top frequencies, at least that's my experience so far. The 3900XT runs much, much hotter than the 2700X, and that's even with a very substantial custom loop (360×30, 240×45 & 360×80 rads). Idle temp is low 40s, under load it can easily jump to the low 80s. The 2700X was ~10°C lower across the board. Whether this is something to do with AMD changing how the temperature is reported (that is pure speculation on my part) or some other issue I'm not sure. Online I found many users had similar experiences vis-a-vis the higher temps. But it's still within spec, so I would just say make sure you have a decent cooling solution. Overall though I'm pleased with it. How much difference users notice depends greatly on what you're upgrading from, and what you're using your system to run. If you're currently using an 8 core Ryzen processor (any generation) and are using your system mostly or exclusively for gaming, I might hold off until prices come down, because the difference you'll notice will probably be fairly modest. Which for $600 or $700 is not a very good ROI.
G**7
3rd gen rocks
Sensational chip. Upgraded from a ryzen 7 1700x. Flight sim 2020 frame rates went from 19 to 45 with my 1080ti.
S**S
It is a good deal right now. It could reduce further.
If you need to build a home server/development PC, this is a great deal. I bought for my development/gaming PC. I guess got lucky to get a good bin. It easily boosts to 4.4 to 4.5 at 83 to 84 Celsius(single core)using an air cooler (hyper 212 black edition, case is deep cool Matrexx 50 air flow). Cinebench R23 gives me all core 4.2 GHz, PBO on, on the ASUS TUF x570 Plus WiFi(TIP do not update to BIOS 3001, it has some nasty bugs with Zen 2 processors). There are plenty of websites that have the Pro's and Con's for this processor, not going to delve into this. Advice is to get a good board with a Decent VRM's and get a good cooler to get good performance. If you are in no hurry to build a PC, I suggest you wait for price drops, when Zen 3 starts to become more available or when Intel Rocket lake releases early next year. Do not play many Games on this but if you do then I suggest to get the Zen 3 models.
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