Skip to: | | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - Newegg shopping upgraded ™

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

AMD Phenom II X4 945 Deneb Quad-Core 3.0 GHz Socket AM3 125W HDX945FBGIBOX Processor

Sold and Shipped by Newegg

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • 45nm Deneb 125W
  • 6MB L3 Cache
  • 4 x 512KB L2 Cache

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews

Like the superheroes of old, the AMD Phenom II streaks out of the night to lay waste to your enemies with 3.0GHz quad cores, each of which has L1 and L2 caches. An additional 6MB of L3 cache is available to handle really heavy loads or large data sets.

Memory transfers get faster than ever. HyperTransport Generation 3.0 mode allows up to 16.0GB/s of bandwidth. Up to 17.1GB/s memory bandwidth for DDR2 delivers an amazing 33.1GB/s of processor-to-system bandwidth. This unprecedented bandwidth is needed to feed the data hungry AMD64 with Direct Connect Architecture cores.

You'd think that all of this power would be too hot to handle. Think again. AMD's Cool'n'Quiet 3.0 technology works with CoolCore Technology to minimize heat while keeping power and efficiency up. Now the cores can shut down unused parts of the processor when not in use. This saves power and helps to reduce the amount of heat generated. This function is built in so there's no need for drivers or BIOS updates.

  • newegg AMD64 Quad-core Technology AMD64 is designed to enable simultaneous 32- and 64-bit computing with no degradation in performance. With Quad-Core technology, four complete processor cores on a single die run at the same frequency to deliver exceptional multi-tasking power, allowing users to surge through the most demanding processing loads, including advanced multitasking, critical business productivity, complicated visual design and modeling, serious gaming, and visually stunning digital media and entertainment.
  • newegg Integrated DDR2 and DDR3 DRAM Memory Controller The AMD Phenom II X4 Quad-Core processor is integrated with DDR2 and DDR3 DRAM memory controller capable of supporting registered and ECC DRAM. The integrated memory controller changes the way the processor accesses main memory, resulting in increased bandwidth, reduced memory latencies, and enhanced processor performance.
  • newegg HyperTransport 3.0 Technology HyperTransport Technology (HT or HTT) is a high-speed, low latency, point-to-point link designed to increase communication speeds between integrated circuits in computers, servers, embedded systems, and networking and telecommunications equipment. With HT 3.0 technology the AMD Phenom II X4 quad-Core processor enjoys 4000MHz system bus speeds.
  • newegg AMD Cool'n'Quiet 3.0 Technology AMD's Cool'n'Quiet 3.0 technology is an enhanced solution available on AMD Phenom II X4 processor-based systems that can effectively lower power consumption and enable a quieter-running system while delivering performance-on-demand.
  • newegg AMD Virtualization Virtualization on desktop computers allows a single PC to act like multiple virtual machines. AMD Virtualization can enable client computers to seamlessly support multiple operating environments. And it also helps make it easier for PC enthusiasts to upgrade and maintain their PCs through emulation.
  • newegg AMD CoolCore Technology AMD CoolCore Technology reduces processor energy consumption by turning off unused parts of the processor. Power can be switched on or off within a single clock cycle so that energy is saved without compromising performance.

Learn more about Phenom II X4 945

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: Non-refundable
    • Return for replacement within: 30 days
  • This item is covered by's Replacement Only Return Policy.
Verified Owner
5/ 5
Strong since 2009 5/27/2016 9:16:27 PM

Pros: What can I say it has ran since 2009

Cons: None

Did you find this review helpful?
Verified Owner
5/ 5
7 years later and still running strong! 2/1/2016 7:26:21 PM

Pros: It has lasted 7 years so far. Good job AMD!

Cons: It doesn't make me toast...well it

Overall Review: This thing has lasted 7 years. 7 years of rock solid service. AMD FTW!

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
amazing processor 9/10/2014 2:21:36 PM

Pros: 5 years later, and it still works like a boss. Ripping and tearing though most of the newest games i play.

Cons: If you do buy this for gaming take the oem head sink, and set it aside for backup use. The oem heat sink is noisy like a jet engine, even across the house. I recommend buying a aftermarket 120mm heat sink to keep it cool, and quiet. For example I have a coolmaster hyper 212 evo. Keeps temps at 27-32 C idle and 50-55 C on full load. Using prime 95.

Overall Review: This processor is slowly showing its age in some of the newest titles today like battlefield 4 on ultra. So it about time i make an upgrade with a new mobo.

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
still love it! 5/28/2013 10:25:11 PM

Pros: I built this machine back in 09, and use it all day , everyday. Heavy gaming at night. it has yet to disappoint. 4 years and still working like a champ!

Cons: none

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Great CPU 12/24/2011 5:33:43 PM

Pros: Where do I start? I upgraded from a Athlon X2 5400+ for my ASRock A770DE+ board. Upped my rating on CPU and RAM to 7.3, lowest rating on my system is my HD @ 5.9. Rips through all of my games as best as possible, my HD3870 is still holding me back. Running with the Rocketfish CPU Cooler RF-UPCUWR, 22*C idle up to 35*C full load!

Cons: Seriously...why is the block here?

Overall Review: Antec DF-85 case
Phenom II X4 945 @ 3.0GHz
ASRock A770DE+
4GB OCZ Blade DDR2 800
Visiontek HD3870 512 OC (Soon to be Sapphire HD6870)
Ultra X3 600watt PSU
WD 250GB OS/Data drive
WD 400GB Misc drive

Not the best rig out there but she gets the job done.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Hasn't failed me in 2 years! 12/7/2011 6:07:08 PM

Pros: I've had this baby for 2 years now and it's still running like a champ!

Cons: None!

Overall Review: Too bad it's deactivated, it's still an epic CPU today and would be a great value!

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
AMD Phenom II CPU reliable 12/4/2011 9:26:44 AM

Pros: Fast, relaible, manageable heat transfer

Cons: Price, at the time I bought this CPU it was at the end of it's Cycle, now I see it is out of stock and discontinued, I wish they would allow chips like this to continue to be sold for th elower end markets and set a price that new builders can afford.

Overall Review: I use this as my day-to-day chip on my main PC, the entire rig only cost me $600 to cuild inluding the $99 fee to Microsoft for using their OS.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
4/15/2011 11:37:36 AM

Pros: Works beautifully

Cons: none

Did you find this review helpful?
ICON Loading...
Selected Items
  • Add to Wish List
Are you an E-Blast Insider?
Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Condition Guidelines

The following guidelines apply to all product categories unless otherwise indicated within specific categories.

  • New : This means the product will ship as received by the manufacturer, sealed, with all advertised components, and with the manufacturer warranty.
  • Refurbished : This means the product was tested and repaired as required to meet the standards of the refurbisher, which may or may not be the original manufacturer. Any exceptions to the condition of the item outside the manufacturer’s information should be provided in the listing, up to and including warranty details.
  • Open Box : Newegg only guarantees your receipt of the Open Box product with the purchase of this item. Any accessories MAY OR MAY NOT be included. Newegg will NOT send you any missing accessories, even if it is required to use all of the item’s functions.Open Box items usually do not come with manufacturer or vendor warranty or technical support. However, warranty support may be available if an item was never registered by a previous owner. Please contact the manufacturer to check.
  • Used - Like New : This means that the product has been opened, possibly used but is in perfect condition with no signs of cosmetic or functional defect. Product may includes warranty, and accessories found with the original product. Product may or may not be in the original packaging. Returned items with minor packaging defects fall under this category.
  • Used - Very Good : This means that the product has been opened, may show slight signs of use and cosmetic blemish, and may be missing minor accessories, but remain in excellent condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Good : This means that the product has been used, may show clear signs of use and may be missing minor accessories, but remain in good condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Acceptable : This means that the product shows clear signs of use, cosmetic defect, and may be missing minor accessories and manual, but remain in working condition. Product does not come with warranty unless stated otherwise in product description. Functionality issues beyond signs of use should be disclosed in product description.
Price Available at Checkout
Why can’t we show you details of this product?

Some manufacturers place restrictions on how details of their products may be communicated.

If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.