Feeds
90%
Sapphire Vapor-X

Sapphire Vapor-X HD 4850 vapour-cooled graphics card

The cooler that turns a Vindaloo into a Korma

  • alert
  • submit to reddit

7 Elements of Radically Simple OS Migration

That ‘explanation’ didn’t make things much clearer so we buckled down to testing the Vapor-X back-to-back with a reference HD 4850 using a Gigabyte MA790FXT-UD5P motherboard with an AMD Phenom II X4 810 running at 3.25GHz and connected to 2GB of DDR 3 memory.

We started by plugging in a passively cooled HD 3450 and saw an idle power draw of 80W at the mains socket and 120W under load.

Power Draw Results

Sapphire Vapor-X - Power Draw

Power draw in Watts (W)
Shorter bars are better

Sapphire Vapor-X - Key

Next we ran the reference HD 4850 at its stock speeds of 625MHz/1986MHz and, later, overclocked to 690MHz/2286MHz. The power draw at idle was 110W, an increase of 30W over the HD 3450, and climbed to 190W at standard speed and 210W overclocked. That’s a power draw of 70W and 90W, respectively, for the graphics card under load, which ran at a steady temperature of 80°C.

Switching to the Sapphire Vapor-X was a revelation as the cooler is practically silent. The graphics card runs at the same 625MHz/1986MHz clock speeds as the reference HD 4850 so the performance didn’t change but the temperature at idle plummeted to 40°C and only rose to 50°C under load. The power draw for the system dropped to 85W at idle and 175W/180W under load. This means that the Vapor-X draws a mere 5W more than an HD 3450 at idle and 25W less than the reference HD 4850.

Under load the Vapor-X draws 15W less than a regular HD 4850 at standard speeds and 30W less when the two cards were overclocked. This suggests that the standard fan has to work incredibly hard to move air through the single-slot reference cooler.

GPU Temperature Results

Sapphire Vapor-X - GPU Temperature

Temperature in Degrees Celcius (°C)
Shorter bars are better

Sapphire Vapor-X - Key

The OverDrive section of the Catalyst drivers wanted to overclock the Vapor-X from 625MHz/1986MHz to 690MHz/2376MHz, which is faster than a reference HD 4850. However the system froze under load until we dropped the memory speed back to 2200MHz. This didn’t have a huge impact but it gave the reference card a slight edge in our benchmark tests. Even so, the difference in the power and temperature figures is quite remarkable.

Build a business case: developing custom apps

More from The Register

next story
Nice computers don’t need to go to the toilet, says Barclays
Bad computers might ask if you are Sarah Connor
4K video on terrestrial TV? Not if the WRC shares frequencies to mobiles
Have your say with Ofcom now, before Freeview becomes Feeview
PEAK LANDFILL: Why tablet gloom is good news for Windows users
Sinofsky's hybrid strategy looks dafter than ever
YES, iPhones ARE getting slower with each new release of iOS
Old hardware doesn't get any faster with new software
You didn't get the MeMO? Asus Pad 7 Android tab is ... not bad
Really, er, stands out among cheapie 7-inchers
Apple winks at parents: C'mon, get your kid a tweaked Macbook Pro
Cheapest models given new processors, more RAM
VMware builds product executables on 50 Mac Minis
And goes to the Genius Bar for support
Leaked Windows Phone 8.1 Update specs tease details of Nokia's next mobes
New screen sizes, dual SIMs, voice over LTE, and more
Microsoft stands on shore as tablet-laden boat sails away
Brit buyers still not falling for Windows' charms
prev story

Whitepapers

7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned devices?