Intel Pentium D 820

  • Review
  • Specs
  • Images
  • User Reviews
  • Buy Now
Intel Pentium D 820
  • Expert Rating

    2.50 / 5

Pros

  • Intel Active Management Technology, SATA II

Cons

  • Main board upgrade required, not for the performance user

Bottom Line

As it stands, the Pentium D 2.8GHz is not much of an upgrade over existing 2.8GHz Pentium 4 CPUs, but you will get a slight benefit when multitasking. It is a relatively inexpensive dual-core CPU though, retailing around $400, although it does require a new chipset to run on.

Would you buy this?

Intel is offering its Pentium D range of dual-core processors at speeds beginning at 2.8GHz (the Pentium D 820). Each chip comes with 1MB of cache per core, 64-bit instructions and has a frontside bus speed of 800MHz. Some versions of the processor also have SpeedStep technology, which slows down the CPU cores when they're not under heavy load in order to save power and reduce fan noise.

The Pentium D series uses the LGA775 socket interface, which is the same as most current Pentium 4 processors. However, be warned that this doesn't mean that it will work on any motherboard with a 775-pin CPU socket!

Only motherboards that have Intel's 945G, 945P or more recent chipsets, or use Nvidia's nForce4 SLI for Intel chipset can run the dual-core Intel chips. It's not a simple upgrade path for those of you that may have an existing Intel platform.

We examined a Pentium D 2.8GHz chip using a pre-production Intel reference motherboard that featured the 945G chipset.

Being the slowest CPU in the Pentium D range, the results we obtained in PC WorldBench 5 do indeed indicate that the Pentium D 2.8GHz CPU is not for the performance user. Despite having two cores, it scored 86 in this benchmark, which is about five points better than a typical Pentium 4 520 machine with a 915P chipset. This performance difference was a result of the multitasking test finishing a little quicker. (Dual core processors excel at multitasking, because different tasks can be assigned to different cores, and each core is, in effect, a fully functioning CPU).

That means the Pentium D will give you a performance boost over a single-core CPU if you are a heavy multitasker, but will not gain you any extra performance in single-threaded applications.

It's important to note that unlike the Pentium 5xx series and Pentium 6xx series of CPUs, the Pentium D series does not have Hyper-Threading. If you want both Hyper-Threading and dual-core, you need to look to the Pentium Extreme Edition 8xx processors.

Join the PC World newsletter!

Error: Please check your email address.
Show Comments

Essentials

Lexar® JumpDrive® S57 USB 3.0 flash drive

Learn more >

Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop

Learn more >

Mobile

Lexar® JumpDrive® S45 USB 3.0 flash drive 

Learn more >

Exec

HD Pan/Tilt Wi-Fi Camera with Night Vision NC450

Learn more >

Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards 

Learn more >

Audio-Technica ATH-ANC70 Noise Cancelling Headphones

Learn more >

Lexar® JumpDrive® C20c USB Type-C flash drive 

Learn more >

Budget

Back To Business Guide

Click for more ›

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?