Intel’s Atom Processor: Benchmarked

ASUS did not want us publishing benchmarks using the Eee Box until it was final, so we had to turn to a competing platform to actually measure the performance of Intel’s Atom. The setup we have here is similar to the Eee Box with three changes: 1) we’re running Vista, 2) we’re using a desktop hard drive and 3) we’re using 2GB of memory. The processor is clocked at the same 1.6GHz as the Atom in the Eee Box and although the motherboard is different, the chipset/graphics are the same.

Intel has frequently promised performance close to that of a Pentium M processor with the Atom, and now we’re finally able to investigate that claim. We compared the Atom to three CPUs:

Intel Celeron 420 (1.6GHz) - The Celeron 420 based on a 65nm Conroe-L core, which is a single-core member of the Core 2 family with only a 512KB L2 cache. Clock for clock the Conroe-L should be much faster than Atom, but this comparison is nice to give a reference point for Atom's performance today.

Intel Pentium M "Dothan" - This has always been Intel's comparison point for Atom. Based on its architecture, Atom should have lower performance than the Pentium M at the same clock speed but we tested at two clock speeds to hopefully find a reasonable range of performance where Atom behaves similarly. Dothan, if you don't remember, was the second Centrino CPU built on a 90nm process and equipped with a very large 2MB L2 cache.

CPU:

Intel Atom Z530 (1.6GHz)
Intel Celeron 420 (1.6GHz)
Intel Pentium M 725 "Dothan" (1.6GHz)
Intel Pentium M "Dothan" (800MHz)

Motherboard: ASUS P5LD2EB-DHS (Atom)
Intel DG35EC (Celeron 420)
ASUS P4P800 (Dothan)
Chipset: Intel 945G (Atom)
Intel G35 (Celeron)
Intel 865 (Dothan)
Chipset Drivers:

Intel 8.1.1.1010

Hard Disk: Western Digital Green 1TB
Memory: DDR2-667 4-4-4-12 (1GB x 2)
DDR-400 (1GB x 2)
Video Card: IGP/GeForce 6600 (for Dothan platform)
Video Drivers: Intel 15.7.3.1409
NVIDIA ForceWare 169.25
Desktop Resolution: 1920 x 1200 (Vista Basic Theme)
OS: Windows Vista Ultimate 32-bit SP1

 

We kept all variables the same as much as possible, obviously the Celeron 420, Pentium M and Atom all had to use different motherboards but we kept everything else from memory size to hard disk the same in order to make this as much of a CPU comparison as possible.

Performance & Power Consumption Memory Subsystem and SYSMark Performance of the Atom
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  • sprockkets - Tuesday, June 3, 2008 - link

    I guess too, that I would use this computer for a 3rd system, where I just needed to use a computer if my others were in use doing cpu intensive stuff.

    I have a D20GLY2 for that purpose, except since it has the sis chipset, video support in linux stinks. Having an intel chipset would be great. If it were at the 965/G31 level, it would run compiz great.

    Perhaps what I like about it, is that it is a small out of the way computer, good for basic tasks, for most people who need little, and would not suffer from say, the problem when one half of those computer/monitor combo went out, both are rendered useless.
  • Kishkumen - Tuesday, June 3, 2008 - link

    Looks like it should be able to handle standard mpeg-2 based 1080i HDTV. I'll probably get one or two to use as MythTV frontends.
  • Visual - Tuesday, June 3, 2008 - link

    please re-check the pricing table that you published...
    you make it clear in the text after the table that the windows model should cost $299, not $269 as the table says now.
  • feelingshorter - Tuesday, June 3, 2008 - link

    1. My parents own a small business. Due to theft, they need a working computer that i can hook up a camera up to that can capture video or images every x number of seconds. Second, they play music at their small business, so i can put MP3s on the machine (no need for high quality sound as it's just classical music). A draw back is that you need a monitor but I have a 19 inch LCD that I can pass along once i upgrade to a 24inch. Also the computer can then be locked in a "web browsing mode" or "media center mode" to allow for people to select the music and surf the web with. At the end of the day, it can be brought to the back of the business and hooked up to the camera system for surveillance (independent systems can cost a lot too but are less versatile than a PC).

    (At their small business, they are currently using a 5 disc CD changer, which doesn't give enough variety in music, with customers complaining about hearing the same thing over and over. Also, if you continue to play the CDs over and over again, it will overheat! Silver pressed CDs are supposed to be quite reliable but if your playing it for hours at a time, it WILL start to shudder.)

    2. At less than 20watts, it will work perfectly as a machine that can be left on 24/7 (or can that not be assumed?). Anyone remember how hot some of AMD's cpu are, 2200+? A desktop that uses less power than the monitor your hooking it up to? I'll buy one just to save money on air conditioning. If not that, it will serve as a good computer in a pool room in your house. Just for our friends to surf the web while you play pool and have a beer. None of my friends really play games. We waste time on youtube and watching comedy, which this PC is powerful enough to do.

    All that being said, at $270, which is really cheap already for a PC, some of us would probably rather put that money into a powerful gaming pc ($1300). Having a PC like that, in the pool room in your house for when you have guests over, is worth buying just for the small form factor and low watt usage.

    3. You can also hook up a USB hard drive to it, connect the PC to a network and now you have NAS storage for all the PCs in your house.

    4. This one is more for businesses. Schools and test taking centers, tutoring centers, and large corporations with stores that uses windows xp as their checkout will love this. I remember when i used to work at Hollister, their seemingly generic and custom touch screen computers they use to check customers out is actually running windows XP beneath it (you would only know if it crashed, which i saw it do and reboot) with custom software. I don't remember the cost per computer but it was ridiculously expensive for what you get (well, the store costs 11 million to open so i guess business can afford it) . This Eee PC will do the job just fine for less watts and $.

    I'm also sure there are other uses but its 2 AM.
  • AMDJunkie - Tuesday, June 3, 2008 - link

    Because the picture on the front page is always delicious irreverent and most of all, amazing.

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