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AMD Ryzen 9 3900X 12-core, 24-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler

by AMD

1,185 ratings

| 259 answered questions

List Price:	$499.00
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The world's most advanced processor in the desktop PC gaming segment
Can deliver ultra fast 100+ FPS performance in the world's most popular games
12 Cores and 24 processing threads, bundled with the AMD Wraith Prism cooler with color controlled LED support
4.6 GHz Max Boost, unlocked for overclocking, 70 MB of game Cache, ddr 3200 support. Base Clock:3.8GHz
For the advanced socket AM4 platform, can support PCIe 4.0 on x570 motherboards

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		AMD Ryzen 7 3700X 8-Core, 16-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler	AMD Ryzen 9 3950X 16-core, 32-Thread Unlocked Desktop Processor, without Cooler	MSI MPG X570 Gaming Edge WiFi Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, AC Wi-Fi 5, HDMI, ATX)	AMD Ryzen 7 3800X 8-Core, 16-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler	AMD Ryzen 5 2600 Processor with Wraith Stealth Cooler - YD2600BBAFBOX

Customer Rating	(859)	(669)	(218)	(341)	(691)	(2556)
Price	$418.95	$299.63	$749.00	$189.99	$339.99	$137.99
Shipping	FREE Shipping on orders over $25	FREE Shipping on orders over $25	FREE Shipping on orders over $25	FREE Shipping on orders over $25	FREE Shipping on orders over $25	FREE Shipping on orders over $25
Sold By	Amazon.com	Amazon.com	Amazon.com	Amazon.com	Amazon.com	Amazon.com
Processor (CPU) Model	Ryzen 9 3900X	AMD Ryzen 7	Ryzen 9 3950X	AMD A Series	AMD Ryzen 7	Ryzen 5 2600
Processor (CPU) Manufacturer	AMD	AMD	AMD	AMD	AMD	AMD
Processor (CPU) Model Socket	Socket AM4	Socket AM4	Socket AM4	Socket AM4	Socket AM4	Socket AM4
Processor (CPU) Speed	4.6 GHz	4.4 GHz	4.7 GHz	2,666 MHz	4.5 GHz	3.9 GHz
Device Type	—	—	—	—	—	Processors
Item Dimensions	1.57 x 1.57 x 0.24 in	1.57 x 1.57 x 0.24 in	1.57 x 1.57 x 0.24 in	12 x 9.6 x 2.5 in	1.57 x 1.57 x 0.24 in	1.6 x 1.6 x 0.3 in
Item Weight	1.6 ounces	1.41 lbs	6 ounces	4.11 lbs	1.41 lbs	1 lb
Model Year	2019	2019	2019	2018	2019	2018
Processor Count	12	8	16	6	8	6
Wattage	105 watts	65 watts	105 watts	125 watts	105 watts	65

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Product description

Style:Processor

AMD Ryzen 9 3900X 12 core, 24 thread unlocked desktop processor with Wraith Prism LED cooler.

Product information

Style:Processor

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM

Processor

4.6 GHz Ryzen 9 3900X

Other Technical Details

Brand Name

AMD

Series

Ryzen 9

Item model number

Ryzen 9 3900X

Item Weight

1.6 ounces

Product Dimensions

1.6 x 1.6 x 0.2 inches

Item Dimensions L x W x H

1.57 x 1.57 x 0.24 inches

Processor Brand

AMD

Processor Count

Batteries

1 Lithium ion batteries required.

Additional Information

ASIN

B07SXMZLP9

Customer Reviews

1,185 ratings

4.9 out of 5 stars

Best Sellers Rank

#2 in Computer CPU Processors

Shipping Weight

2.34 pounds (View shipping rates and policies)

Date First Available

July 1, 2019

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.

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5 star		93%
4 star		4%
3 star		1%
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Danny S. Richey

The forbidden machine

Reviewed in the United States on July 15, 2019

Style: ProcessorVerified Purchase

This thing arrived in the mail like any ole package. For me it was just another boring day, I decided to open the box and take a peak inside.... immediately the sun shined down its ray of light and people were harmoniously singing in the background. I immediately shouted to be quiet, I didnt want them ruining this moment. I reached in the box with my sweaty clammy hands and pulled out the ryzen 9 box. I stared at it...... and it stared at me. I couldnt wait any longer, I rushed in the lab where I began ripping the box from the PC. Standing outside my door all you could hear was the clanking of metal and the sound of sparks as I installed this beautiful piece of hardware in my PC. I knew what I had was magic.... it was one of a kind. I wanted to show it off so I headed to an Intel convention where people shrieked and ran in terror. They knew what I had brought was over thirteen levels higher than their most powerful tool.... the i9. After all of this, all I have been through I could finally say I had the better processor. Anyways, I would reccomend!

645 people found this helpful

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Waldo

RIP Intel

Reviewed in the United States on July 6, 2019

Style: Processor

Intel's coffin has arrived.

Coming from an i5-7600k never have a been able to multitask so smoothly with an Intel CPU.

566 people found this helpful

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Robert L.

Powerhouse

Reviewed in the United States on July 9, 2019

Style: ProcessorVerified Purchase

Phenomenal CPU, absolutely crushes Intel's 9900k (which is roughly the same price) at most tasks. Intel does have a slightly higher base clock speed so it has a slight edge on single core benchmarks - though this 3900x has plenty of room for overclocking and exceeds the Intel at single core tasks for the same clock speed.

The extra cores and threads on this CPU set it above the rest for real-world tests and multicore benchmarks. Excellent CPU for streaming, gaming, video editing/rendering, and just about anything else.

The only reason not to buy this is if you are going to wait for the 3950x in September, which has 2 more cores and 4 more threads for $250 more.

I highly recommend this CPU, and also suggest pairing it with one of the new x570 motherboards - I have the ASUS Crosshair VIII Hero myself and love it.

Update: Cable management is important of course. CPU cooler that ships with this CPU is solid, haven't had any issues so far.

202 people found this helpful

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Emmanuel

Biggest generational jump in performance in my CPU purchasing history (30 years)

Reviewed in the United States on July 14, 2019

Style: ProcessorVerified Purchase

I’ve owned Intel from 80386 (386) to 6700k Skylake, AMD Athlon 64, Ryzen 1700 and now I just upgraded to 3900x. What an amazing CPU, with the incredible jump in IPC performance, even Adobe Lightroom is faster, Lightroom(!), do you know how hard it is to move that glacier.

I’ve heard some gripes about there not being much headroom for overclocking. I’ve overclocked every CPU in the past only because they left so much performance on the table. This CPU appears to do a great job of getting every bit of performance out of it that overclocking for a minute gains is not worth it to me. Its performance is monster straight out of the box, I think the early BIOS from the MB manufacturers are running the voltage a bit high on default settings. I tried setting it at 1.3v but it made a big drop on boost performance. I settled on leaving it on auto with an offset of -.1125 and I do not see a performance loss (Cinebench).

125 people found this helpful

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M. Dillon

Insane performance even with reduced power cap set

Reviewed in the United States on July 13, 2019

Style: ProcessorVerified Purchase

I managed to get it from Amazon by watch-dogging the page, but it took some effort because it barely stays up for a few minutes before people snap whatever stock there is up. Hopefully the supply pipe will iron itself out so others aren't left just staring at pictures!

The 3900X... well, its just insane. As you can see I'm not using it on a desktop, so no gaming reviews here :-). I actually have it in a rack doing bulk application builds, and in that regard the performance is really bordering on the insane side. It wipes the floor with whatever I throw at it. I have it in an ASRock B450M-PRO4 motherboard which worked great after (of course) I updated the BIOS.

In this particular case I tested the CPU to around 150W on the socket (200W at the wall) and it performed excellently. For my particular use-case, though, since I stuffed it into a 2U rack mount with a low-profile 65W air cooler, I decided that things were a little too toasty so I used the BIOS setup to limit the socket to 100W (150W at the wall). The CPU is still a beast even limited in that fashion. The 3900X at 100W socket (150W wall) is twice as fast as my 2700X is at 190W (wall), and ever faster if I let it stretch its legs. It blows away everything I have except my TR2990WX. I am very, very impressed.

I will throw in a few provisios here for early adopters. First, if you intend to stuff a Zen 2 CPU into an older motherboard remember that you have to update the BIOS first. Second, the BIOSes are really early and some motherboard vendors haven't gotten updates out with the latest AMD AGESA, so if you are an early adopter on an older motherboard be prepared to face some difficulty. I didn't have any problem with the B450M-PRO4 that I stuffed this 3900X into but I am having trouble POSTing a 3600X on a B350 Gaming-itx/ac. It's clearly just an early BIOS issue since once I do get it to POST successfully (takes a number of tries), the system is rock solid.

Third, I do NOT recommend that anyone try to overclock on these early BIOSes. Wait for the BIOSes to mature a bit more because trying to do it on these early BIOSes runs a real risk of burning your chip up.

Other than that, enjoy! It's an incredible CPU.

-Matt

107 people found this helpful

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JLX

Rendimiento increible con ESXi 6.7, se puede usar como servidor en una pyme

Reviewed in Spain on October 24, 2019

Style: ProcessorVerified Purchase

Aunque tecnicamente es un procesador de gama desktop, lo he utilizado para montar un servidor en una empresa pequeña con 5 usuarios y substituir a 3 servidors HP Proliant DL320eG8 con 1 x Xeon X3430 (4 cores / 4 threads) y VMware ESXi. El Ryzen 9 3900X con sus 12 cores y 24 threats doblado el número de threads, y cada core es unas 5 veces más rápido. Ahora las máquinas virtuales (una mezcla de Linux, Windows Server 2012 y Windows Server 2019) se levantan en 5 segundos. He instalado el Ryzen 9 3900X en una sencilla placa GIGABYTE X570 AORUS Elite porque incluia tarjeta de red Intel (queria evitar que el ESXi no reconociera a las tarjetas Realtek de otras placas). El resto de la configuración es 64GB de memoria no-ECC 3200Mhz, 2 x 2TB Intel SSD 660P Series, 2 x 4TB WD GOLD 7.2K 128MB (WD4002FYYZ), Corsair RM850i,
Gigabyte GeForce GT 710, todo dentro de una caja COOLERMASTER EATX MASTERBOX 5 Black Edition con 4 ventiladores EZDIY-FAB PWM 120 mm. He utilizado el ventilador Wraith Prism de serie que venia con la CPU porque no voy a hacer overclocking.

El ESXi v6.7u3 se ha instalado sin ningún problema y ha reconocido todo el hardware. Además también tengo habilitadas las funciones para el i/o passthrough devices (por ejemplo, si quiero puedo asignar la tarjeta gráfica a una VM).

Ya se que al utilizar un procesador y placa base de gama consumer (no es ni workstation ni server) pierdo funciones como el control remoto iLO/IPMI, o la posibilidad de monitorizar el hardware (temperaturas, ventiladores, etc.) desde el ESXi. Sin embargo, por el coste total (unos 1600€) tengo una bestia de equipo con componentes garantizados para muchos años. Si quiero más fiabilidad puedo simplemente montar un segundo equipo de backup (por ejemplo con un Ryzen 7 3700X para reducir costes) y me sale todo muy barato.

Con los nuevos Ryzen 7 y Ryzen 9 ya no hace falta irse a la gama de procesadores para servidores y pagar una fortuna para tener un servidor potente.

56 people found this helpful

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MikeH

Amazon is terrible at product titles. Great CPU though!

Reviewed in Canada on September 14, 2019

Style: ProcessorVerified Purchase

After 3 months, Amazon still can't seem to get the product titles correct for these new CPUs. Fortunately, the description details matched what I wanted. This was in fact the AMD Ryzen 9 3900x which is a 12-core processor (NOT 8-core as the current description suggests).

The processor itself runs beautifully and handles every workload I can throw at it with ease. Paired with 32GB of PC3200 (CL16) memory, a Radeon RX 5700 XT GPU and a Samsung EVO Pro 970 NVME SSD, mounted on an ASUS ROG Crosshair Hero VIII motherboard, the system is unstoppable.

34 people found this helpful

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c c

Processore ottimo ma occhio alle temperature

Reviewed in Italy on September 7, 2019

Style: ProcessorVerified Purchase

Processore incredibile ed affidabile. Molto bello anche il dissipatore stock con pasta termica già applicata. Unica pecca del processore è che scalda davvero tanto, di base sta sui 50/60 con programmi che non lo appesantiscono troppo, cercare di far girare anche programmi pesanti lo manderà in un batter d'occhio a toccare i 95°. Consiglio vivamente di cambiare il dissipatore per metterne uno a liquido, a seconda ovviamente dell'utilizzo!

24 people found this helpful

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Rudolf Zemann

Sehr gute CPU, aber .....

Reviewed in Germany on December 11, 2019

Style: ProcessorVerified Purchase

Ich habe den 3900x in einen komplett neuen PC, samt x570 Board, 32 Gb Ram ect. gebaut.
Das ist bereits meine 2. CPU aus der 3000 Serie ( 3800x).
Zum großen Unterschied zum 3800x muss man beim 3900x folgendes sagen:
1. wer sich diesen Prozessor zulegen möchte sollte unbedingt auch gleich eine ordentliche Wasserkühlung kaufen
Die CPU reagiert extrem auf Temperatur, wer nicht ausreichend kühlt ist sehr rasch im Temp. Limit von 95° und die Kiste schaltet ab !
2. Wer auch gerne Einstellungen im Bios an der CPU macht muss oder darf, je nach dem, durch die 4 CCD recht viel herum probieren.
3. Die CPU braucht, ordentlich Strom ! 150 W reine CPU Leistung und noch etwas darüber dürfen es dann schon sein.
das relativiert sich zwar durch die gebotene Leistung, aber trotzdem muss man schon darauf achten, denn mal so mit 80 - 90 Watt wie beim 8 Kerner spielt sich hier nichts ab.

Bei mir läuft das System mittlerweile im 24/7 Betrieb mit 3600MHz CL14 am Ram, 4400MHZ auf 3 CCd und 4500 auf einem CCD.
Um einen Vergleich zu bieten: Cinebench R15 bei meinen Systemen : R7 2700x 1920 max., R7 3800x 2420 max., R9 3900x 3470 max.
Zusammenfassend: Natürlich eine Wahnsinns CPU ! Keine Frage, aber man sollte sich, anhand des Preises, des Aufwandes und der für Gamer unsinnigen Megapower die Frage stellen ob es tatsächlich 12 Kerne sein müssen.

19 people found this helpful

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Vitaly Kravchenko

Looks like new Ryzens are solid across the board, from 3200G to 3900X!

Reviewed in the United Kingdom on October 26, 2019

Style: ProcessorVerified Purchase

Finally got my hands on 3900X and it's great! Initially ordered on July 11, but when my order missed delivery date 11 days later, I got Ryzen 3 3200G to make sure the rest of my new build is working. BTW, 3200G is a beast of a CPU for the price! It's CPU performance is solid and iGPU performance is very impressive. It's hard to tell the difference between 3200G and 3900X in day to day use actually. Even in gaming, there's not a big difference, (though I do play at Quad-HD and 4K on RTX 2070, so games are mostly GPU bound).

Anyway, I ended up cancelling my 3900X in September and re-ordered again from Amazon US when they became available a week ago. It's probably for the best, because I get 4.2GHz all core boost and single core boost of 4.65GHz (on stock BIOS settings), now that AMD has learned from all of the complaints about boost clocks and released the ABBA AGESA, and perhaps started binning 3900Xs a little better to save face.

Multi-core performance is very impressive, I've tried compiling Rust projects and compressing large number of files with 7-zip. Now here, it's a night and day difference compared to my macbook pro and Ryzen 3200G.

The CPU temp goes to 75C after a few minutes at full load (Blender Classroom rendering), with NH-D15S as a cooler. I used Noctua's thermal paste that came with the cooler, pressed the heatsink against the CPU, removed to check thermal paste covered the whole heat spreader, then screwed the heatsink on.

If that helps, I'm using Aorus Elite x570 board, Micron's Ballistix DDR4 3200 RAM CL16 (4 sticks) and Samsung 970 EVO NVMe M.2 SSD.

So there you go, I guess, this is 2 reviews in one. Looks like you can't go wrong with AMD's new CPUs. Buy with confidence!

3 people found this helpful

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IOANNIS A.

CPU doesn't work. In fact it may have damaged my MB and DRAM.

Reviewed in the United Kingdom on November 14, 2019

Style: ProcessorVerified Purchase

Amazon's customer service getting worse over the years. I had one of the worst experiences ever with the delivery and customer service during that. By the way this is the second time I post a review about this. First one wasn't posted by Amazon.

Installed the CPU (upgrade from 3700x) in and it won't post! Now my other cpu won't post either. I don't know if it's the cpu or something else happened.
On top of that I didn't get my XBOX pass code or games!
If I don't manage troubleshooting it until return date, then I am returning this thing. The problem is now nothing else works either. Thanx for that Amazon! It isn't enough you drove me crazy on delivery day, now THIS.
Just to be clear, I think the 3900x is awesome but this one seems to be a dud. If you damaged the rest of my components I will be asking for compensation for them as well.
UPDATE
Even with new memory it won't post, now the old one posts though so clearly there is an issue with this cpu and it caused the MB and DRAM to malfunction as well. The 3700x I had before now posts but temps are high and wattage is also very high. I am in the process of returning both.
UPDATE
Returning both 3700x and 3900x (this never posted, probably DOA).

2 people found this helpful

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Luftwaffle

This is a serious beast. Well worth its price.

Reviewed in the United Kingdom on December 29, 2019

Style: ProcessorVerified Purchase

The processor is beyond belief. Well above expectations. The X570 mother board makes a perfect match.
One issue I have is with the provided Wraith Prism Cooler: out of the package this thing blows DOWN onto the chip and mother board. Unsurprisingly the thermal performance is measly. Not sure what the designers were thinking, but the general idea should be to move heat AWAY from the chip and not blow it down onto both chip and motherboard.
Hence I physically flipped the fan (you can't run it in reverse) so it complements the natural flow and pushes the heat upwards and hey presto! all is well. I will do some more detailed heat analysis but it definitely runs miles better (and cooler) with the fan blowing out.

One person found this helpful

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S Roberts

The devil makes work for idle hands

Reviewed in the United Kingdom on February 23, 2020

Style: ProcessorVerified Purchase

Be very wary about purchasing a processor from Amazon, especially if the order will be fulfilled from stock from "NCG Group".

My Ryzen 3900x box arrived with the top torn open and the processor missing. The only thing to be found inside was the cooler. Turns out the £415.00 price was too good to be true after all.

The outer plain Amazon packaging was intact. I think there are two possible scenarios. Either this is a scam by the seller, NCG Group, or the Devil is making work for idle hands at the Amazon warehouse.

A retrospective read through feedback left for NCG Group reveals several similar incidents reported of the same thing: empty processor boxes. And yet Amazon continues to let them trade on its platform?

Amazon say they have refunded me. That doesn't compensate for my ruined weekend though. I'll be buying from a more reputable source and anyone thinking of buying this should consider doing the same thing.

2 people found this helpful

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zafteg

ライトゲーマーの感想として

Reviewed in Japan on July 13, 2019

Style: ProcessorVerified Purchase

7/7に販売開始直後に注文したところ，7/12に届きました．
マザーボードはmsiのx470 gaming plusを利用しています．
個人的にx570のマザーボードは後継ではなく上位モデルと言った感じなので，PCIe Gen 4が今必要かということが最大の点になるかと思います．
cpuファン，グリスは純正を利用しています．
私は軽くゲームをする程度なので正確なスコアはベンチマーク比較サイトに任せますが，同じrtx 2080を利用して特に設定を弄らず3DMarkでベンチをとったところ，2600xではCPU scoreが6133，3900xは9723でした．
rtx2080+2600xではr6sなどをやっているときに足を引っ張っていたようで私の設定ではfpsが140-180くらいでしたが，rtx2080+3900xでは180-220ほど出るようになりました．
設定によっては240で安定化することも可能かと思います．
2kでちょっとリッチなゲーム体験をしたいライトゲーマーの方は，金額を考慮しても奮発して買ってしまって良いのではないでしょうか．

45 people found this helpful

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Dylan

So happy I made this purchase

Reviewed in the United Kingdom on January 5, 2020

Style: ProcessorVerified Purchase

I bought this CPU in exchange for my AMD Ryzen 1700. I installed the 3900x in a x470 TUF Motherboard with no problems what so ever. All is needed is for the BIOS to be updated so it can run 3rd gen AMD CPUs. For gaming and streaming abilities this CPU is insane and I highly recommend this. You don't need to go for a x570 mobo it will save you money if you just go for a x470 and update the BIOS. So proud I purchased this and I even learn't how to do it myself.

3 people found this helpful

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Mr. G. A. Tallowin

I think I got lucky with mine

Reviewed in the United Kingdom on November 7, 2019

Style: ProcessorVerified Purchase

Not having any of the issues others have had.

Boosts to 4.65GHZ
Under an all core workload maintains 4.2GHZ

Paired with an X570 Taichi with ABBA agesa

If you are gaming at 1440p there will be NO real difference between this and a 9900KS

Whereas productivity wise it beats the snot out of it.

2 people found this helpful

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Amazon Customer

Go For The Under Dog

Reviewed in the United Kingdom on February 25, 2020

Style: ProcessorVerified Purchase

To be honest I've been holding back my review till this point I don't really know my reason for doing that... Anything could be it to tell your the truth.

Anyway now my mind mind is set and my eyes have seen the truth, I have been a Intel fanboy for many years cursing the name "AMD", like if it was a sin and why would people build an epic computer with a "AMD" CPU is everyone and idiot...

I am happy to inform everyone that I shall be cursing another name that would INTEL as there high prices and the disregard to customers needs in the past years have lead them to this point which is overwhelming defeat by the amazing and so apologetic to have ever had doudted they would pull it off.

THE AMAZING AMD EVERYONE *CLAPS AND CHEERS*

Now if your still backing the wrong team ill give you some advice stop what your doing join the once underdogs and now kings in there own rights

Now let's talk serious.

My device.

AMD Ryzen 9 3900x
Asus x570-e
G.Skill F4 16 GB X2
NVIDIA GEFORCE Gtx 1080ti Hybrid
Samsung M2 SSD 500gb
WD 1tb ssd
1000w Corsair

80+ FPS on all titles I play even new releases

7700k Intel build under 60 FPS most

So work it out hope you do

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Kamil's View - Kamil K.W.

Beast of a CPU - can be overclocked 10-12% and beautiful RGB on the very efficient stock cooler

Reviewed in the United Kingdom on November 10, 2019

Style: ProcessorVerified Purchase

So after overclocking by 11% using Asus provided software that does it automatically and using 3200 RAM overclocked with the profile to 3200MHz I am getting 33500 on the Passmark benchmark. With RAM at 2400 it was around 31500. I'm using the stock cooler, which is super efficient and so beautiful at the same time!

RGB is a great bonus - it's super beautiful.

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Timothy P.

Chip of the old block.....

Reviewed in the United Kingdom on January 28, 2020

Style: ProcessorVerified Purchase

This is a very nice CPU indeed. I almost went for the 3950x CPU but the difference in price was vast so i opted for this 3900x & i don't think you can go wrong. I would recommend this CPU for sure....

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Antonis_30

Great Processor. Worth the money!

Reviewed in the United Kingdom on January 13, 2020

Style: ProcessorVerified Purchase

Performs like a champ. Great single and multi-core performance.
Runs a bit hot under low-to-medium loads (even with AIO installed).
Current Stable OC:
CPU Voltage: 1.35V
SOC Voltage: 1.2V
Infinity Fabric Data (CLDO VDDG): 1.2V
CPU Core Ration: 43 (i.e running at 4.3Ghz)
Worth the upgrade!

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