Ryzen 9 3900X Twelve Core 4.6GHz (Socket AM4) Processor - Retail

  • 100-100000023BOX
  • 12 Core with 24 Threads
  • 4.60GHz clock speed
  • 7nm FinFet Process
  • 64MB L3 Cache
  • Dual Channel DDR4 Controller
  • 3200-3600MHz RAM Recommended
  • 3 Year Warranty

ETA: 28.10.19

£589.99 *
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Stock Code: CP-3B5-AM

EAN: 0730143309950

MPN: 100-100000023BOX

Manufacturer: AMD

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Ryzen 9 3900X Twelve Core 4.6GHz (Socket AM4) Processor - Retail

Higher speeds, more memory, and wider bandwidth than the previous generation. 3rd Gen AMD Ryzen™ processors with the 7nm “Zen 2” core2 sets the standard for high performance: exclusive manufacturing technology, historic on-chip throughput, and revolutionary overall performance for gaming. From the beginning AMD’s 3rd Gen Ryzen™ processors were designed with this philosophy, to break expectations and set a new standard for high-performance gaming processors. That’s exactly what it does.

Get ground-breaking gameplay from the world’s most advanced desktop processor1, with impressive performance that lets you move faster, aim better and bring your best to every battle. Watch games come to life with immersive visuals and responsiveness. Elevate your game with PCs powered by 3rd Gen AMD Ryzen™.

Move from vision to perfection with 3rd Gen AMD Ryzen™ processors performance. The world’s most advanced desktop processor1 enables professional-class workloads with the incredible speed and precision you need to unleash your inner creative genius. When it’s time to master the art and science of creativity, you deserve the power to move from brainstorm to deadline without compromise.

- Core Count (Cores/Threads): 12/24
- Base Clock (All Core): 3.80GHz
- Boost Clock (Single Core): 4.60GHz
- L2 Cache: 6MB
- L3 Cache: 64MB
- Cooler: Wraith Prism
- TDP: 105W
- Recommended Memory speed: 3200-3600MHz DDR4 (Dual Channel)
- OcUK Recommends 8 Pack 3200MHz & 3600MHz 16G kits with Ryzen as tested by 8 Pack in both X470 and X570 platforms showing excellent results with tight CAS timings, all 8 Pack memory is guaranteed screened Samsung B-Die. OcUK Product codes are MY-08L-TG & MY-08Q-TG !!!


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Free items with this product worth £173.95!
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3-months of FREE Xbox Game Pass For PC
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Get Borderlands 3 and The Outer Worlds games* with select AMD Ryzen™ processors. Plus, get 3 months of Xbox Game Pass for PC* and play Gears 5.



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Customer review

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Star Rating

Average customer rating

(from 6 customer reviews)
Last 6 Months (6)
All Time (6)

Great CPU

Took 2 weeks to arrive but worth the wait. This CPU is worth every penny and can handle anything you throw at it. Buy DDR 3600, tweak the timings and get the best out of the 3900x. Thanks for the greqat service!

Stewart 2019-08-30

Ryzen 9 39900x review

This is a fantastic chip for throughput. If gaming is your main objective this si not the chip for you. If you really want to spend 500 squid get the 9900k for gaming. however i personally would recommend the ryzen 7 3800x or even one of the older ones. This would give you the best performance to cost ratio.
But backt o the 3900x. As i game a bit and i do a lot of heavy load multitasking i can confirmt hat this handles multitasking like a 10000000w lazer cuts through butter. Its a beautiful cpu for heavy multithread loads. I simply cannot really stress it. it barely ever reaches 30-50% load.
For gaming, it is not the best, sure... but it handles everything beautifully. world of warcraft retail at 100-250 fps easy, world of warcraft classic 4k at 100+ fps easy... modern AAA titles at well in excess of 100 fps no prob and even crysis at 200-500 fps on my rtx 2060 super oc with ray tracoing enabled where ever possible and freesync. So the cpu is no way a bottle neck here.
If your load is geared toward heavy multithreading... this is for you.. if you want to game high end and heavy multi tasking with high loading.. this is for you.
ps... dont waste you time overclocking this cpu..while it can be done and you can achieve 4.4ghz on a serious cooling setup... it is absolutely pointless. this thing is just so freaking powerful out of the box with its built in boost you just dont need it and gain almost nothing.
I know stock is an issue.. but i can verify that it is worth that wait.

Mr James Finglas 2019-08-28


This thing is a blast, even upgrading from a 2700X. Multitasking is seamless - you can e.g. run a memory test in the background and still watch YT smoothly, play a 2D strategy game etc.

Everyday tasks are like butter.

Gaming is perfect too.

"Just buy it". ;)

Andy 2019-07-16

Raw Power

What a CPU! AMD have delivered big style. Fantastic next day delivery as usual from the OCUK team. Chhers guys.

Scott Travis 2019-07-15

Beastly CPU

Pretty damn good CPU, my particular sample manages 4.5GHz at 1.3v albeit I got lucky looking at reviews so don't expect the same. But with tweaked RAM also my single core in Cinebench R15 beats a 9900K quite well which is surprising and obviously since it's a 12 core absolutely stomps in multitheading. This thing performs amazingly well for very little power from what you may be used too, and while most Zen 2 CPU's come "maxed out" all core overclocks are still useful, and you get new parameters to play with such as the IF clock and better memory support alongside that. This CPU is basically all you could ever ask for in my opinion 10/10

Sam 2019-07-11

Super Fast

Been using for a day and i have got to say am blown away destroys everything in its path.

Craig Rushworth 2019-07-09

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