AMD Mainstream PC

To be completely honest, the AMD Phenom II X3 720 Black Edition is not quite the equal of Intel's Core i3-530. In our tests, it came in slightly behind in practically every single benchmark, regardless of how many threads the applications used. But it comes very close, and if you buy into the value-packed AM3 platform using the X3 720 as your entry point, you'll have plenty of other features to go along with it.

AMD Mainstream System
Hardware Component Price
Processor AMD Phenom II X3 720 BE Heka
(Tri-core 2.8GHz, 45nm, 3x512KB L2, 6MB L3)
$125
Cooling CPU Retail HSF $0
Video PowerColor Radeon HD 4850 512MB $100
Motherboard Gigabyte GA-MA790XT-UD4P AM3 (before $15 Rebate) $105
Memory G.Skill Ripjaws 4GB DDR3-1600 F3-12800CL9D-4GBRL $105
Hard Drive WD Caviar Blue 500GB WD5000AAKS $54
Optical Drive Sony Optiarc Model AD-7240S-OB 24X DVDRW SATA $28
Audio Onboard $0
Case Cooler Master Centurion 5 CAC-T05-UW Mid Tower ATX $55
Power Supply OCZ ModXStream Pro 500W ATX12V SLI Certified, CrossFire Ready, 80 PLUS Certified Modular Active PFC (before $25 Rebate) $65
Base System Total $637
Display ASUS VH226H Black 21.5" 2ms(GTG) HDMI Widescreen 16:9 LCD (1920x1080) (before $20 Rebate) $170
Speakers Cyber Acoustics CA-3090 26W 2.1 Speakers $21
Input Microsoft B2L-00045 Comfort Curve Black USB Keyboard and Optical USB Mouse - OEM $22
Operating System Microsoft Windows 7 Home Premium OEM 1-Pack (for System Builders) $105
Complete System Bottom Line $955
Plus Estimated Shipping (within Continental U.S.) $997
Rebates -$60
Bottom Line (less tax, if applicable) $937

Besides, when you judge it on its own merits, the $125 2.8GHz Phenom II X3 720 Heka Black Edition is still a very promising processor. Like the Athlon II X3 435 Rana we recommended for our entry-level box, the 720 Heka is at the sweet spot between dual- and quad-cores in AMD's lineup, performing better than Athlon II X4s in benchmarks that favor fewer threads and better than Phenom II X2s in benchmarks that favor more. It's a powerful overclocker, capable of a stable 3.8GHz on air and up to 3.3GHz on stock voltage, and the Black Edition suffix means you'll have an unlocked multiplier to help you get there. And of course, as with any AMD tri-core, you have a chance of unlocking its hidden fourth core with ACC. If you don't see yourself doing a lot of multitasking or multithreaded work, you could easily shave $34 by going with the $91 Phenom II X2 550 BE instead; if you plan on doing 3D rendering and video editing all day, you'd can save $23 by purchasing the $102 Athlon II X4 630 Propus. But if you're not certain where your CPU might take you and you want to maximize the possibilities, the 720 Heka is the right chip at the right price.

And to house that chip, we've got not one but two bang-for-the-buck motherboard possibilities from Gigabyte. If you're not planning to buy a discrete GPU to power video and gaming, we recommend the GA-MA790GPT-UD3H, a full-sized ATX motherboard built around the 790GX / SB750 chipset. At the excellent price of only $90 after rebate ($105 without) the MA790GPT-UD3H features an onboard Radeon HD 3300 IGP with 128MB of DDR3 sideport memory, which beats both AMD's newer 785G and the Intel Core i3-530's Intel HD Graphics in terms of raw power. It also comes with Realtek's premium ALC889A 7.1 channel HD audio chipset and loads of opportunities for expansion.

The SB750 Southbridge provides the standard four flavors of RAID (0/1/5/10) across six SATA 3GB/s ports, four facing front; connectivity includes VGA, DVI and HDMI video-out, six USB 2.0, one 1394a, a combo PS/2, Realtek 8111C GbE, six audio ports and a separate S/PDIF optical out on the rear panel; and the board supports all current Athlon II and Phenom II processors along with 16GB of DDR3-1666 memory in four banks. The board's layout leaves something to be desired, with one of three fan headers and its three USB 2.0 headers sandwiched haphazardly amongst the PCIe slots, but it does include a pair of PCIe x16 slots (with 8 lanes for each in CrossFire), three PCIe x1 and a pair of PCI slots, in addition to an IDE header, two 1394a headers and a legacy floppy connector.

However, if you do plan to buy a discrete GPU, we'd recommend the Gigabyte GA-MA790XT-UD4P instead. For the same $90 after rebate, it loses the onboard video of the 790GX series but gains the newer Realtek 8111DL NIC for Gigabit Ethernet, one 1394b port and one coaxial S/PDIF port on the rear panel. It has a more sensible layout and a reputation for moderate overclocking that should serve you well if you decide to push that tri-core CPU to its full potential.

As with our Mainstream Intel PC, onboard graphics make even a $100 discrete video card optional, but it's somewhat more of a talking point when that 790GX graphics still doesn't allow bitstreaming of Dolby TrueHD and DTS-HD or 8-channel LPCM audio output over HDMI. Though the Radeon 4850 is our go-to budget gaming choice at $100, if you're looking for this AMD PC to pull double duty as a home theater box, you might want to consider a Radeon 5000 series card like the $100 Radeon HD 5670 instead.

Intel Mainstream PC Get Your Upgrades
Comments Locked

86 Comments

View All Comments

  • poohbear - Friday, February 12, 2010 - link

    Thank you for putting this article up, i was waiting for one of your system builder guides as a rough reference as they're usually on the money, this article was no exception.:) Alot of solid info there, will definitely use it as a reference for the next couple of months when people ask for advice (all my friends and family want a budget PC, i only know enthusiast parts! lol)
  • juampavalverde - Friday, February 12, 2010 - link

    Congrats for the first article Sean, it feels very "anandtech" like.
  • papapapapapapapababy - Friday, February 12, 2010 - link

    all over the place. who makes this lame shopping list? example... the LGA 775 motherboard is a terrible choice, TERRIBLE for like 2 bucks you have this one > GA-EP43T-USB3 LGA 775 the difference ? nah not much, just that onboard NEC uPD720200 host controller ( that means USB3 support ) The funny thing, im just a guy from Argentina (cant even buy the dam board) even then i know how to build a better pc than the experts over here. great job Anad...
  • piasabird - Friday, February 12, 2010 - link

    If you are going to look at an i3 530 why not also look at the E7500 and see which processor does best for the money.

    It seems like they would be fairly compatible at about the same price. Why go to a new somewhat experimental H55 motherboard if there is not enough of an improvement?
  • johnsonx - Friday, February 12, 2010 - link

    While it's true that MOST power supplies that come with cases are nearly worthless, there are some exceptions. Many Antec and some Coolermaster cases come with perfectly nice power supplies. The Antec NSK4480 comes with an EarthWatts 380 for only $70 (http://www.newegg.com/Product/Product.aspx?Item=N8...">http://www.newegg.com/Product/Product.aspx?Item=N8...
    There are other examples as well.
  • johnsonx - Friday, February 12, 2010 - link

    oops, the closing paren got included with the URL above, here it is again:

    http://www.newegg.com/Product/Product.aspx?Item=N8...">http://www.newegg.com/Product/Product.aspx?Item=N8...
  • JarredWalton - Friday, February 12, 2010 - link

    When we were putting the guide together, I actually looked at that exact system. You'll notice the regular price is listed at $100? That's what it was two days ago, which is why I didn't bother Sean with the change. I figure for the $20 extra, a 500W PSU was a better choice. For $80 (plus shipping), it's a much more attractive option, provided you don't want to upgrade to a high-end GPU down the road.

    The 380W is good for something like a 5770 with an i3/i5 CPU or Phenom II X4 level CPU, but if you overclock the CPU you're going to be pushing it very hard. Add in something in the 5850 class and you'd likely peak at close to 100% power draw, if not slightly more. On the other hand, if you just want to run at stock with IGP, such a setup is a great idea. (I wish more cases shipped with 80 Plus certified PSUs... a year ago, I recall a few cases like that falling into the $65-$75 shipped range.)
  • Bugler - Friday, February 12, 2010 - link

    I really enjoy reading these guides and the thought process that goes into your builds. My last build was 2004, which I am still using; however, I want to upgrade, the board, ram, cpu. etc.

    At the time I built back then, I tried to use some of the best components to make it easier to upgrade in the future. I am just not certain which parts I can retain with my rebuild.

    I have a large Cooler Master Stacker full tower case, a OCZ Power Stream 520w power supply, a 7.1 channel Sound blaster Audigy2 zs gamer PCI sound card, and an eVGA nvidia geforce 6800 GT 256mb GDDR graphic card that I am hoping to reuse. Do you guys see any problems with me using these components in your mid level build package option?

    I admit, I have not stayed up on the knowledge aspect of components specs the past few years. My video card is bus APG 4x/8x but does output to DVI.

    Also, my CPU heatsink is the Theralright XP-90 which has been sitting on my 939 socket AMD for the fast five years. Is that something I can reuse in this build?

    Thank you in advance guys.
  • FlyTexas - Friday, February 12, 2010 - link

    Keep the case and power supply, maybe the Sound Blaster card and DVD drive if you really want, dump everything else.

    Why? First, AGP is long gone, PCI-Express is now how video cards are installed. Built in graphics won't be as good as your former video card, but they'll be close. For $100, the ATI 4850 will run rings around your old card.

    Second, modern hard drives are a lot faster than they were in 2004, don't hobble a new system with a 5 year old drive.

    You can probably reuse your old heatsink and fan if you go AMD, but do you really want to? The fan is 5 years old, it wasn't designed or certified for modern CPUs.
  • Bugler - Saturday, February 13, 2010 - link

    Thank you.

Log in

Don't have an account? Sign up now