AMD Ryzen 9 3900X Twelve Core 4.6GHz (Socket AM4) Processor - Retail
Product Technical Specification
| Higher speeds, more memory, and wider bandwidth than the previous generation. 3rd Gen AMD Ryzen™ processors with the 7nm “Zen 2” core 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. |
| - Ian '8Pack' Parry | The UK's Number 1 Overclocker |
Delivery Options
Economy Delivery (UK)
Fast & Tracked by Courier (UK)

Higher speeds, more memory, and wider bandwidth than the previous generation. 3rd Gen AMD Ryzen™ processors with the 7nm “Zen 2” core 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.
AMD Ryzen 9 3900X at a glance:
- Massive core count with 12 cores with 24 threads
- Excellent 3 year warranty
- Wraith Prism cooler is included for free
- Backwards compatible with previous generations of motherboards
- AMD Ryzen Master software

AMD Ryzen 9 3900X in more detail:
Get ground-breaking gameplay from the world’s most advanced desktop processor, with an 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 processor 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.

8Pack Says
I recommend using 3200MHz or 3600MHz 8Pack edition team group 16GB memory kits with Ryzen. I’ve tested this in both X470 and X570 platforms and both show excellent results with tight CAS timings. All my 8Pack memory is guaranteed screened Samsung B-Die. The OCUK Product codes are MY-08L-TG & MY-08Q-TG.
- Ian '8Pack' Parry: The UK's Number 1 Overclocker
PRODUCT NAME Specification:
| Specification | Detail |
|---|---|
| Core Count | 12 Cores and 24 Threads |
| All Core Base Clock | 3.80GHz |
| Single core Boost Clock | 4.60GHz |
| L2 Cache | 6MB |
| L3 Cache | 64MB |
| Cooler | Included Wraith prism |
| TDP | 105W |
| Higher speeds, more memory, and wider bandwidth than the previous generation. 3rd Gen AMD Ryzen™ processors with the 7nm “Zen 2” core 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. |
| - Ian '8Pack' Parry | The UK's Number 1 Overclocker |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a simple, hassle-free returns policy. If for whatever
reason you are not happy with the item purchased, you can return it to us
within 14 days of receipt for a refund. This applies to items purchased
direct through Buykingston only.
Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If
an item has been opened for inspection but shows signs of use beyond that, a
deduction may apply to reflect the reduced value — see our full
Terms & Conditions
(Section 12) for details.
Some items are excluded from our money-back guarantee unless they have developed a fault. These include:
- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with
custom logos on them, e.g. USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked
items.
How do I go about returning my order?
Please contact us
via our contact page with your order number. We will provide you with an RMA
number and return instructions, including your return deadline and whether a
freepost label applies to your order.
Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.
Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we
understand you may no longer have the original packaging.
Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable
return postage, or provide a freepost label where available. If you are
returning an item for another reason (including simply changing your mind),
you are responsible for return postage unless we have expressly confirmed a
freepost label in your RMA email — we recommend using a tracked and
insured service for items of significant value.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
directly for assistance.
Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.