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AMD Phenom II X3 720 Triple-Core 2.8 GHz Socket AM3 95W HDZ720WFGIBOX Black Processor

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  • 4000 MHz
  • 45 nm SOI 95W
  • 6MB L3 Cache
  • 3 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 three 2.8GHz cores having L1 and L2 caches for each core and 6MB of L3 cache to be shared 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 and up to 21GB/s memory bandwidth for DDR3 memory controller delivers an amazing 37GB/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 Triple-core Technology AMD64 is designed to enable simultaneous 32- and 64-bit computing with no degradation in performance. With Triple-Core technology, three 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 X3 Triple-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 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 X3 triple-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 X3 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 X3 720

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
Still a great Processor 11 years after purchase 4/1/2020 2:10:55 PM

Pros: Still use this processor in my old gaming rig which RAM and GPU have been upgraded to keep pace. This processor just keeps going!

Cons: None

Overall Review: It's older generation but has held up very well. After all these years it deserves recognition and appreciation!

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
AmberCNE AMD Phenom II X3 720 Triple-Core 2.8 GHz Black CPU 1/17/2020 6:26:43 AM

Pros: Excellent!!! Unlocked to Phenom II X4 20, at 2.8 Ghz. Runs 4 Cores very cool (about 36 C) and over-clockable to about 3.4 Ghz

Overall Review: Good value for money. Even though this CPU technology is over 10 yrs old now, it is still a viable CPU to Run WIN 10 effectively.

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Verified Owner
5/ 5
Great CPU 5/22/2018 6:22:13 AM

Pros: Reliable: I have been running this CPU daily for 9 years, and it still works great.

Cons: None

2 out of 2 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
2015 2/4/2015 8:34:59 PM

Pros: been running this cpu for like 4-5 years now on an old pc i use as dvr .
asus mobo m4a78 plus and ati 4870 graphics card ddr2 800 2x hhds 1 500 gig 1 750 gig,
win vista pro
oc to 3.3 ghz
And its still works fine !

Cons: none

Overall Review: been thinking of upgrading mobo to keep using it as my dvr .
will go am3+ so can use ddr3 1333cpuz

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Overclockers Dream 1/19/2010 6:26:37 PM

Pros: AMD Overdrive took it to 3.5Ghz using my Coolermaster RR-H101-22FK-RA also purchased here. Core temps. running at 39.1
Price to performance ratio can't be beat.

Cons: No sticker in the box.

Overall Review: Never tried the fan but had planned on overclocking from the get-go.

Asrock MB
4Gig ram
ATI HD4760 1gig.
Windows 7

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Ownership: 1 week to 1 month
Verified Owner
4/ 5
Solid CPU 1/18/2010 11:34:29 PM

Pros: I Unlocked the 4th core easily and was able to overclock this to 3.48Ghz stable on stock air.

Cons: none

0 out of 2 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good deal at the time... 1/18/2010 8:01:12 PM

Pros: Able to unlock all four cores on an Asus M4A785-M m-atx MB. So far so good and seems stable. Like the unlocked multiplier feature for the future. When I bought the cpu the price was down at 119 so I got a good deal at the time!

Cons: Cheap heatsink and also compared against an i7-920, Q9550-S, and i5 processor at same frequency the above mentioned processors according to TomsHardware beat it in performance by a sizable amount and with less power wattage usage per mhz compared to the AMD Phenoms. Also the the X4-925 2.8ghz is going for $25 dollars less right now....

Overall Review: Despite performance rankings and power usage when I bought it at $119 made it a great deal and value per dollar spent. Can only guess that the X4 is cheaper because too many people are buying the X3s and unlocking the 4th core. Go figure....

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Awesome 1/18/2010 6:24:55 PM

Pros: I just recently built my own machine and decided to use the 720 as my CPU because of the low cost (at the time) and the performance. This thing is leagues beyond my old athlon64x2 3800. I run high powered programs all at the same time and I experience no slow downs at all.

Cons: Dinky fan
stock thermal paste

Overall Review: I have not tried to OC this thing yet, as I don't want to mess around with the OC'ing abilities until I get a new cpu cooler. I purchased this when it was $ it is almost $40 more.

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