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AMD Phenom II X4 955 Black Edition Deneb Quad-Core 3.2 GHz Socket AM3 125W HDZ955FBGMBOX Processor

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  • 4000 MHz
  • 45nm Deneb 125W
  • 6MB L3 Cache
  • 4 x 512KB L2 Cache

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Experience a new world of quad-core computing with the AMD Phenom II X4 955. Every aspect of this processor was designed with speed and energy efficiency in mind. AMD64 with Direct Connect Architecture and 45nm technology has created a tuned processing pipeline that helps keep your system performing at the highest levels. HyperTransport Technology provides up to 16.0GB/s bandwidth to reduce system bottlenecks and AMD Balanced Smart Cache ensures quick access times to highly used data.

Energy efficiency is important to AMD, allowing you to enjoy a cool, quiet PC while saving energy and reducing heat, noise and the effect of your computer on the environment. Energy efficiency innovations include Cool’n’Quiet and AMD CoolCore. These technologies reduce power consumption and processor activity.

AMD Phenom II processors also offer support for Virtualization Technology. You can run virtual environments on one system with ease, allowing you to use legacy programs on a separate operating system. Add the convenience and power of multi-core processing and enjoy the benefits of energy efficiency with an AMD Phenom II X4 955 today!

  • newegg AMD64 with Direct Connect Architecture AMD64 technology allows the AMD Phenom II X4 955 processor to run 32-bit applications at full speed while enabling a new generation of powerful 64-bit software applications. Moreover, all AMD Phenom II processors are built on AMD’s revolutionary Direct Connect Architecture, where processors are directly connected to one another. An I/O and memory subsystem are also directly connected to each processor, helping improve overall system performance and efficiency.
  • newegg True Quad-Core Processing With the power of four processor cores on a single chip, the AMD Phenom II X4 955 processor delivers industry-leading multitasking performance with each core having its own L2 cache memory and ability to quickly share data among cores utilizing the L3 cache.
  • newegg Integrated Memory Controller The AMD Phenom II X4 955 processor features a high-bandwidth, low-latency integrated memory controller that directly connects the processor to memory for optimum performance, low latency, and high throughput.
  • 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 955 quad-Core processor enjoys 4000MHz system bus speeds.
  • newegg PowerNow! 3.0 Technology CPU power management technologies featured in AMD PowerNow! 3.0 Technology like AMD's Cool'n'Quiet 3.0 technology result in proven, measurable benefits for businesses and consumers, including reduced power usage, lower energy costs, and greener PC operation.
  • 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. It also helps make it easier for PC enthusiasts to upgrade and maintain their PCs through emulation.

Learn more about Phenom II X4 955 Black Edition

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 Newegg.com's Replacement Only Return Policy.
5/ 5
with a heavy heart

Pros: I am retiring this build after 10 years. This processor paired with a Asus crossfire II formula mobo was built in December 2008. The ram has been replace twice. Started with SLI GTX 980. Has out lived 4 different GPUs. 3 different HHDs with 3 different Windows OS. In the first 4-5 years the pc was turned off maybe 50 times. I am now replacing this Ryzen setup. The processor and mobo are still running. I think I will turn it into art and frame them and hang on the wall in my game room. Damn good run......

Cons: Too damn good. Just would not die. Was gaming on a 10 year old pc and was getting made fun of.

Overall Review: I bet you my Ryzen don’t last this long

4 out of 4 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
Reliable.

Pros: Bought in 2010 and been running since. Can still play most games on pretty decent settings, games from about 2013 and behind 60fps pretty easily. This thing wont give up.

Cons: The cooler was SOOOOO loud. Replaced with noctua fan and dont hear a thing anymore, plus temps dropped dramatically. 20c average drop.

Overall Review: If you see this for low price and really just need something to run, get this. otherwise its pretty dated. I will be putting mine on display after upgrading.

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Ownership: more than 1 year
Verified Owner
5/ 5
3/13/2011 was purchase date

Pros: solid

Cons: none

Overall Review: only took out this year for a 6 core upgrade, still as good as new!

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5/ 5
I have this CPU running Windows 7.

Pros: It boosts to 4,245 MHz. Works well enough to run GTA 5 with a RX550 in a HP p6716f with 8 gigs of memory at 1333 MHz. It runs well.

Cons: I bought this CPU used on New Egg. I don't know what cooler it would have came with. I am useing the stock cooler with the HP PC. It's an aluminum cooler with 90 mil fan. No mods done to it. It gets warm without AC on, around 50c under load. Meaning 50 to 75%.

Overall Review: I don't think that I will kill it. It is running warm. I wonder what heat sink it would have come with. I know that it is not the one I have. You know HP is cheap. This is upgrading from a x4 640. I think that would have had a 65 watt tdp.

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Ownership: more than 1 year
Verified Owner
5/ 5
7 years!

Pros: I built my system 7 years ago and last week a hard drive burned up and the case was spitting out some smoke. I figured it was my 20 dollar power supply and ended up building a ryzen 1600 system instead of diagnosing.

But, my new mobo was defective so I ended up throwing windows 10 on the old system with a new drive and it runs great! This little processor is a trooper. I had it at 3.8 for its life with no issues. I've rendered animations on it for weeks straight while in college and it never had any issues. I recommend these chips to people who need basic systems. You can get fhem dirt cheap. My chip has plenty of life left in it.

Cons: Absolutely none. I hope the ryzen lineup are as sturdy.

Overall Review: I love amd.

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Ownership: more than 1 year
Verified Owner
5/ 5
Phenomenal CPU for its time

Pros: -Native Quadcore
-Can still play new games on reduced settings
-Can Multitask with today's software
-Stable OC at 3.8Ghz
-Stable underclock of 2.5ghz @ 1.1625V

Cons: -Lack of SSE4.2 instruction set makes some games incompatible
-Lack of AVX instruction set makes some software incompatible
-Outperformed by low end CPUs offered today

Overall Review: This was a fantastic value and competitive chip for its time. Even with age, this CPU can still do quite a lot, but its blown away by even bottom tier CPUs offered today. This was my daily driver until I recently when I upgraded to Ryzen. After six years this was still able to handle gaming; albeit, those games were running 60fps only after reducing settings to low and usually included some frame drops down into the 20s. Obviously, I can't recommend it anymore, but it was worth recommending years ago when it was still on sale.

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
AMD Good stuff

Pros: Has worked for 7 years now

Cons: Doesn't make breakfast

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
Still going strong after 7 years!

Pros: * Amazing CPU for the $$$
* Paired with a MSI 790FX-GD70 motherboard
* Cheap
* Has held the test of time
* I'd contemplated upgrading to the X6; even as late as a year or 2 ago
* Runs great under a Cooler Master Hyper 212 EVO

Cons: - 125W TDP needs a beefy motherboard
- Even 7 years ago AMD was slipping well behind Intel
- I believe AMD was still fussing with trying to reach higher clock speeds whereas Intel was scaling down the size of the CPU traces and working alternatives to clock speed
- Obviously this chip is dated to the extreme

Overall Review: * A little late to the show, but I would've recommended this chip
* In fact I recommended this chip to many people up a few years ago as a cost competitive replacement to the i5/i7
* I built AMD machines for the past several computers and even went with an AMD 8XXX series with a 990FX chipset over Intel a year and a half ago
* Intel i5 and i7 were too expensive; however, I was very close to choosing to replace this chip with Team Blue since AMD before 2017 was not competitive
* I'm finally going to replace this chip with a Ryzen
* Ryzen is here to save us from Intel's monopoly!

1 out of 1 people found this review helpful. Did you?
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