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(590 ratings)
87% positive over last 12 months
Shipping rates and Return policy

AMD Ryzen 9 3900XT 12-core, 24-Threads Unlocked Desktop Processor

4.8 4.8 out of 5 stars 1,831 ratings

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Purchase options and add-ons

Brand AMD
CPU Manufacturer AMD
CPU Model Ryzen 9 3900X
CPU Speed 4.7 GHz
CPU Socket Socket AM4

About this item

  • The world's fastest 12 core processor for mainstream desktop, with 24 procesing threads
  • Can deliver ultra-fast 100Plus FPS performance in the world's most popular games
  • Cooler not included, liquid cooler with 280mm or larger radiator recommended
  • 4.7 GHz Max Boost, unlocked for overclocking, 70 MB of Gamecache, DDR-3200 support
  • For the advanced Socket AM4 platform, can support PCIe 4.0 on X570 and B550 motherboards. Maximum Temperature-95°C

Frequently bought together

$450.00
Get it Mar 29 - Apr 3
In Stock
Ships from and sold by Maestro Technology LLC.
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AMD Ryzen 9 3900XT 12-core, 24-Threads Unlocked Desktop Processor
AMD Ryzen 9 3900XT 12-core, 24-Threads Unlocked Desktop Processor
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Price$450.00-18% $351.55
List:$429.00
-28% $392.78
List:$549.00
-51% $279.00
List:$569.99
-28% $215.58
List:$299.00
-21% $549.99
List:$699.00
Delivery
Get it Mar 29 - Apr 3
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Wednesday, Mar 27
Customer Ratings
Stability
5.0
4.5
4.4
4.4
4.3
4.7
For gaming
4.5
4.6
4.6
4.6
4.4
4.5
Value for money
4.3
4.2
4.2
4.3
4.2
4.2
Sold By
Maestro Technology LLC
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
core count
12
1
1
12
1
1
cpu socket
Socket AM4
Socket AM5
Socket AM5
Socket AM4
Socket AM5
Socket AM5
cpu speed
4.7 GHz
3.7 GHz
4.7 GHz
4.8 GHz
4.7 GHz
4.5 GHz
cpu family
ryzen 9 3900x
ryzen 9
ryzen 9
ryzen 9
ryzen 5
unknown
L2 cache
12 MB
12 MB
4 MB
6 MB
16 MB
wattage
105 watts
65 watts
170 watts
105 watts
105 watts
170 watts

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Product Description

The AMD Ryzen 9 3900XT. Light Years Ahead. Featuring award winning performance and optimized technology for gamers, for creators, for everyone.


From the manufacturer

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Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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AMD Ryzen 9 3900XT 12-core, 24-Threads Unlocked Desktop Processor


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Customer reviews

4.8 out of 5 stars
4.8 out of 5
1,831 global ratings

Customers say

Customers like the performance, quality and speed of the computer processor. They mention that it performs impressively, does everything they want it to do and is good for streaming and playing demanding games. They also appreciate the value for money. Customers are also satisfied with gaming. However, some customers have different opinions on temperature.

AI-generated from the text of customer reviews

16 customers mention16 positive0 negative

Customers are satisfied with the performance of the computer processor. They mention it performs impressively, without any issues, and does everything they want it to do. Some say that the Ryzen works great with 2933MHz and OCs better. Overall, most are happy with their purchase and recommend it for gaming.

"...as it runs pretty hot even when watercooled, however I’m happy with the performance." Read more

"...competitors like NewEgg, but Amazon delivered, the processor works great without any issues...." Read more

"...Swapping out my cpu was a breeze and it works great!" Read more

"...I use the system for a Digital Audio Workstation, and it performs impressively...." Read more

16 customers mention16 positive0 negative

Customers are satisfied with the quality of the computer processor. They mention that it is an amazing processor, good for streaming and playing demanding games, and has an amazing GPU. Some say that it's one of the top of the line, latest and greatest CPUs, and a fantastic product.

"This CPU is one of the top of the line, latest and greatest CPU's...." Read more

"...In any case, it is a significant upgrade, and the fastest computer that I have ever used." Read more

"Fantastic product, easy installation. I got it because it didn't come with a cooler because I was going to use a noctua cooling solution...." Read more

"BEASTY CPU! manhandled cinebench 20, lots of control/options, low power draw/heat for the performance versus intel!..." Read more

16 customers mention16 positive0 negative

Customers are satisfied with the speed of the computer processor. They mention that it is really fast, and gets huge fps. They also say that it has super performance, and is an absolute monster in multi-core performance. Furthermore, they say that overclocking has been a breeze, and they can definitely notice better frame rates in all their games.

"...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...." Read more

"...In any case, it is a significant upgrade, and the fastest computer that I have ever used." Read more

"...as an upgrade from Ryzen 5 2600 I can definitely notice better frame rates in all my games, I’m getting an avg of 133fps on Escape from tarkov at..." Read more

"...Lots of cores and this xt model is more efficient with new architecure so it OCs better too...." Read more

16 customers mention13 positive3 negative

Customers like the value of the computer processor. They say it's an excellent value for money, a great buy, and totally worth it.

"...anything that is thrown at it, and compared to Intel, the price is much more friendly...." Read more

"...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...." Read more

"...Lots of cool options to play with this cpu! great buy, but I wouldn't get the 3800xt, just get 3600xt, 3900x, or 3900xt" Read more

"...Expensive but totally worth it, runs cooler then i was expecting too." Read more

6 customers mention6 positive0 negative

Customers like the gaming capabilities of the computer processor. They mention it's a beast for gaming, and it'll last for ages.

"...This is a beast for gaming, but *really* flies if you are creating a workstation for 4K and up video editing or any multi-threading apps...." Read more

"This CPU is an absolute monster in Multi-Core performance. Beyond overkill for gaming. I don't think it'll have to be upgraded in ages...." Read more

"Great for gaming, multitasking, streaming, virtualization... This CPU does run warm so make sure you get a good cooler especially if you plan on..." Read more

"Excellent for gaming,Recommended" Read more

4 customers mention4 positive0 negative

Customers find the installation process of the computer processor to be easy and simple.

"Fantastic product, easy installation. I got it because it didn't come with a cooler because I was going to use a noctua cooling solution...." Read more

"...Overall I’m happy, very fast and easy to get set up. Geekbench 5 scores are 1289 single and 10,580 for multi score...." Read more

"...Shipping was quick and everything was sealed. Chip was easy to install onto the mobo without any issues of bent pins...." Read more

"Fast, simple, runs cool." Read more

11 customers mention7 positive4 negative

Customers are mixed about the temperature of the computer processor. Some mention that it runs cooler than expected, while others say that it does run a little hot under load.

"...(dual fans wouldn't fit as my RAM is too tall) - and it keeps the CPU below 60°C during idle and playing games...." Read more

"...if I’ll consider undervolting to lower temps as it runs pretty hot even when watercooled, however I’m happy with the performance." Read more

"...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...." Read more

"...Expensive but totally worth it, runs cooler then i was expecting too." Read more

AMD's Fastest Mainstream Part
5 Stars
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.
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Reviewed in the United States on January 3, 2021
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2 people found this helpful
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Reviewed in the United States on September 14, 2020
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Reviewed in the United States on August 7, 2020
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5.0 out of 5 stars AMD's Fastest Mainstream Part
Reviewed in the United States on August 7, 2020
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.
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148 people found this helpful
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Reviewed in the United States on December 28, 2020
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2 people found this helpful
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Miyelo
5.0 out of 5 stars Alto performance.
Reviewed in Mexico on November 23, 2021
Style: CPU OnlyVerified Purchase
One person found this helpful
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Mike Williams
5.0 out of 5 stars Runs hot, but still a great CPU.
Reviewed in Canada on January 1, 2021
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6 people found this helpful
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Antonio Ruiz
5.0 out of 5 stars Una bestia de procesador
Reviewed in Spain on January 17, 2021
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One person found this helpful
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sks
5.0 out of 5 stars It is a good deal right now. It could reduce further.
Reviewed in India on December 22, 2020
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5 people found this helpful
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ok
5.0 out of 5 stars ACHTUNG: Kein Cashback / Game Coupon beim amazon
Reviewed in Germany on December 21, 2020
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2 people found this helpful
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