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AMD Ryzen 9 5900X CPU

12 Core / 24 Thread - Max Boost 4.8GHz - 64 MB Cache - AM4 Socket - 105W TDP - Extended Frequency Range (XFR) in the Presence of Better Cooling - Heatsink Not Included

PB Tech price
PB Tech price
$ 909 .00
 +GST
$ 1,045 .35
 inc GST

Out of stock

Limited Supply - only stock on hand available, when sold out we may not be able to source this product again.

AMD Ryzen 9 5900X CPU

12 Core / 24 Thread - Max Boost 4.8GHz - 64 MB Cache - AM4 Socket - 105W TDP - Extended Frequency Range (XFR) in the Presence of Better Cooling - Heatsink Not Included

12 cores to power through gaming, streaming and more.
  • Brand: AMD
  • MPN: 100-100000061WOF
  • Part #: CPUAMD05900X
  • UPC: 730143312738
67
PB Tech price
$ 909 .00 $ 1,045 .35
 +GST  inc GST

No store stock available. See in-stock alternatives

Click & Collect: Collect unavailable
Delivery: Out of stock
  • Brand: AMD
  • MPN: 100-100000061WOF
  • Part #: CPUAMD05900X
  • UPC: 730143312738

CPU Family

AMD Ryzen 9

CPU Socket

AMD AM4

Number of Cores

12

Integrated Graphics

No

Base Clock Speed

3.7GHz

Turbo Boost Clock Speed

4.8GHz

TDP

105W

CPU Cooler Included

No

Product is out of stock. View similar products in-stock at PB Tech

What PB Tech customers are saying about this product...

See More Reviews

Customer Review Summary

"This AMD Ryzen 5900X CPU is praised for its blazing fast speeds, efficient performance and superior value for money. Customers report that it handles a variety of tasks with ease, ...view more"

AI avatar icon
Summarised by AI 13/09/25
AI Bot

"This chart explains a lot: https://www.cpubenchmark.net/cpu_value_available.html#xy_scatter_graph"

MS
By: MatthewS9827 09/03/23

"I replaced my AMD 9 3900X with this. Considering core and thread count are identical the 9 5900X performance outstrips the previous generation.

At this price point it is the be ...view more"

GL
By: GeneL29 28/11/20

Features

The World's Best Gaming Processor

12 cores to power through gaming, streaming and more.

 

The Fastest in the Game

Get the high-speed gaming performance of the world's best desktop processor.

 

AMD StoreMI Technology

A fast and easy way to expand and accelerate the storage in a desktop PC with an AMD Ryzen™ processor.

 

AMD Ryzen™ Master Utility

The Simple and Powerful Overclocking Utility for AMD Ryzen™ processors.§

 

AMD Ryzen™ VR-Ready Premium

For the best possible VR experiences, AMD offers select Ryzen™ VR-Ready Premium processors.

Specifications

# of CPU Cores

12

# of Threads

24

Base Clock

3.7GHz

Max Boost Clock

Up to 4.8GHz

Total L2 Cache

6MB

Total L3 Cache

64MB

Unlocked

Yes

CMOS

TSMC 7nm FinFET

Package

AM4

PCI Express® Version

PCIe 4.0

Thermal Solution (PIB)

Not included

Default TDP / TDP

105W

System Memory

System Memory Specification

Up to 3200MHz

System Memory Type

DDR4

Key Features

Supported Technologies

AMD StoreMI Technology
AMD Ryzen™ Master Utility
AMD Ryzen™ VR-Ready Premium

Foundation

Product Family

AMD Ryzen™ Processors

Product Line

AMD Ryzen™ 9 Desktop Processors

Platform

Boxed Processor

Manufacturer Part No:
100-100000061WOF
Brand:
AMD
Product Type:
CPU
UPC
730143312738
Product Family:
Ryzen 9
Shipping Weight:
0.1 kg
PB Part No:
CPUAMD05900X
Product Model:
5900X
Warranty: 36 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.

Reviews

5 out of 5 Stars Based on 67 reviews
5 Stars
66
4 Stars
1
3 Stars
0
2 Stars
0
1 Stars
0

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Proven and reliable

Nothing much to say except it is an excellent CPU. Already proven and good performance for the money since the last AMD rebate. Daily use in audio recording and gaming.
Highly recommend.

GJ
By: GuilhermeJ3 03/06/22
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

A beast of a processor

I have been running this processor so far for 3 days, and I can say it's a beast. I will never probably get this processor to 100% usage, however it is nice to have the extra horsepower for if I might need it in the future. I can recommend this processor, it was easy enough to install. It does get a bit loud with my fans at times, but I think that is more an issue with the fans than with the processor getting too hot. PB Tech prices this processor very reasonably.

By: Orcam 21/05/22
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

If only I knew sooner about AM5

This thing is really powerful. I never expected to out-do my expectations when it came to raw performance. The only thing to worry about this CPU is the fact that you need a beefy cooler in order to operate at cool temperatures as even the stock coolers from AMD struggle to even cool this beast.

TM
By: TaikaiM 21/04/22
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

An incredible upgrade.

This CPU rocks. I upgraded from an Intel i7 6700k and im noticing the 5900x smash gaming and streaming at the same time. No longer crashing with multiple programs open.

BR
By: BarlowR 31/01/22
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

Incredible CPU!

So very happy with this product! Lives up to it's reviews online, Works perfectly. Extremely happy! Super fast and efficient!

CH
By: ChelseaH15 27/01/22
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

Awesome Processor!

Tons of grunt for gaming and productivity.

MH
By: MichaelH72 23/12/21
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

Hot Stuff, literally!!

This is a very good CPU. Nothing more to say. Jumped from a R5 3600 to this so kind of forgot about the thermal aspect. Did a small boost to the fan curve, and voila! No longer need a heater for the winter ;)

Jokes aside. Huge boost in literally everything. Never need to worry about being able to running anything any more.

RS
By: RaghavS68 03/12/21
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

Expensive - but aren't all good things?

Installed this onto an Asus Crosshair VIII Dark Hero motherboard and everything worked well out of the box.
This is my first AMD CPU for about 20 years. It is remarkable what competition does for the computer industry and, in 2020/21, AMD is certainly well ahead. Gone (for now) are the days when a CPU upgrade resulted in performance being only a few percentage points higher than the old one (Intel).
This CPU just yelled out to me "buy me".

FE
By: FoxE 11/01/21
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

It's a beast.

Glad I waited for this and didn't go for the 3900XT.
Amazing performance for the $$$

G
By: Guest 21/12/20
1 out of 1 user found this review helpful
Did you find it helpful?

Among the best price performance ratio of its class

This chart explains a lot:

https://www.cpubenchmark.net/cpu_value_available.html#xy_scatter_graph

MS
By: MatthewS9827 09/03/23
0 out of 0 users found this review helpful
Did you find it helpful?

Impressive chip 2 years on

purchased to upgrade from a 3900x.
was a tossup between this and a 5800x3d,
with the cache being the most beneficial factor to gaming performance, the 5900x gets very close OC'd to 4.6+ all core with appropriate cooling,
which i already had, without that and no need for extra cores the 5800x3d is the better choice for most users.

If you have the cooling and a workflow requiring more than just games however, this is the better option.

DP
By: DanielP13 30/12/22
Verified Owner
0 out of 0 users found this review helpful
Did you find it helpful?

More than I need

I got the 5900X as part of upgrading my 10 year old Windows system for Windows 11. The old processor was an AMD FX8350, which had done well for those 10 years, but the 5900X is a big upgrade - more than I need at present, but as I want this new system to last 10 years too, I am very happy with it. It is still relatively low power for so much CPU, which is a bonus as this PC is on 24/7 so I do not want to increase the power bill. The new system (with an Asus ROG STRIX X-570E Gaming WiFi II motherboard and 64 Gibytes of RAM) draws about the same power as the old one (Asus Sabertooth 990FX 2.0 with 16 Gibytes RAM).

SW
By: StephenW47 29/11/22
Verified Owner
0 out of 0 users found this review helpful
Did you find it helpful?

Delivery & Pick-up

Potential courier delays: Please note that due to the high volumes currently within the NZ courier network there is potential for some deliveries to be delayed.

Delivery Estimates

The estimated time to ship for each product we sell is detailed on the individual product page just underneath the price. From when your items ship, products typically arrive within 1-2 working days for North Island deliveries and 2-3 working days for South Island deliveries. Rural deliveries may take an extra working day. Bulk & hazard deliveries may take an extra 2-4 working days.

Next Day Delivery

Need your order in a hurry? PB Tech offers next day delivery for local Auckland addresses. Simple place your order before 4pm (provided your items are in stock) and select our next day delivery option in the checkout. T&C's apply. Learn more about Next Day Delivery.

Same Day Delivery

Need your order in a hurry? PB Tech offers same day delivery for Auckland, Hamilton, Wellington and Christchurch. Simple place your order before 1pm (provided your items are in stock) and select one of our same day delivery options 'Evening Delivery' or 'Urgent 3-hour Delivery' in the checkout. T&C's apply. Learn more about Same Day Delivery.

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security & Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

1 Hour Store Pick-up / Click & Collect

You can pick-up your online order from any of our stores nationwide. You can select which store you want to pick up from at the checkout. Provided the store you select has stock and there's no hold-ups with payment we will have your order ready within 1 hour (during normal trading hours for that store) otherwise it may take up to 5 working days to transfer the stock to the store so your order can be fulfilled. Learn more about our Click & Collect process.

Overseas Shipments

PB Tech regularly ships overseas to Australia and beyond. If you are located in Australia, you can order directly from our Australian site www.pbtech.com/au. If you are from another country you can order from www.pbtech.com

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed and unopened, with packaging in original condition, accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange. A 20% restocking fee may be applied where goods are not returned in sealed, original packaging condition.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase. Items purchased on finance cannot be exchanged for a gift card.

 

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you can either contact the manufacturer directly (some manufacturers provide a high level of warranty service - including free pickup or in some cases onsite repair), or return to one of our services centres / stores. Where the product has been directly imported by PB Tech, you need to contact us directly or present the product at any one of our service centres / stores together with your proof of purchase.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

 

Returning a product / making a warranty claim

To contact the manufacturer directly to troubleshoot your product or to request a warranty repair, please view the list of manufacturer / brand warranty contacts (for products imported directly by PB Tech please return to us directly by completing our request a return form).

To return a product to PB Tech directly, please complete our request a return form.

Or view our returns policy for more information.

AMD Ryzen 9 5900X CPU 12 Core / 24 Thread - Max Boost 4.8GHz - 64 MB Cache - AM4 Socket - 105W TDP - Extended Frequency Range (XFR) in the Presence of Better Cooling - Heatsink Not Included

12 cores to power through gaming, streaming and more.
  • Brand: AMD
  • MPN: 100-100000061WOF
  • Part #: CPUAMD05900X
  • UPC:730143312738
PB Tech price $909.00 Excluding GST PB Tech price $1,045.35 Including GST

Date Created: 19:26, 13-09-2025
Product URL: https://www.pbtech.co.nz/product/CPUAMD05900X/AMD-Ryzen-9-5900X-CPU-12-Core--24-Thread---Max-Boo?pg=2&srsltid=AfmBOoqOz_uqv2RzQEcJPA3WoubymEoqe6YBHGaubXBN7cAJ1-45JORy
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Dunedin 0

Features

The World's Best Gaming Processor

12 cores to power through gaming, streaming and more.

 

The Fastest in the Game

Get the high-speed gaming performance of the world's best desktop processor.

 

AMD StoreMI Technology

A fast and easy way to expand and accelerate the storage in a desktop PC with an AMD Ryzen™ processor.

 

AMD Ryzen™ Master Utility

The Simple and Powerful Overclocking Utility for AMD Ryzen™ processors.§

 

AMD Ryzen™ VR-Ready Premium

For the best possible VR experiences, AMD offers select Ryzen™ VR-Ready Premium processors.

Specifications

# of CPU Cores

12

# of Threads

24

Base Clock

3.7GHz

Max Boost Clock

Up to 4.8GHz

Total L2 Cache

6MB

Total L3 Cache

64MB

Unlocked

Yes

CMOS

TSMC 7nm FinFET

Package

AM4

PCI Express® Version

PCIe 4.0

Thermal Solution (PIB)

Not included

Default TDP / TDP

105W

System Memory

System Memory Specification

Up to 3200MHz

System Memory Type

DDR4

Key Features

Supported Technologies

AMD StoreMI Technology
AMD Ryzen™ Master Utility
AMD Ryzen™ VR-Ready Premium

Foundation

Product Family

AMD Ryzen™ Processors

Product Line

AMD Ryzen™ 9 Desktop Processors

Platform

Boxed Processor

Date Created: 19:26, 13-09-2025
Product URL: https://www.pbtech.co.nz/product/CPUAMD05900X/AMD-Ryzen-9-5900X-CPU-12-Core--24-Thread---Max-Boo?pg=2&srsltid=AfmBOoqOz_uqv2RzQEcJPA3WoubymEoqe6YBHGaubXBN7cAJ1-45JORy