Broadwell-U Core i7-5500U test gives us performance clues.

Posted on 02 January 2015 by

Core i7-5500U

Haswell-U series processors were the ultimate generation for Ultrabooks. The goal was to have an SoC with usable integrated graphics in a 15W TDP and it delivered. It delivered great battery life through the new power control architecture, fast video conversion and optimisation hardware and ‘always-on’ through the Microsoft InstantGo feature on Windows 8. The next generation of that CPU, based on much the same architecture as the Haswell-U generation, is just about to reach the market and in just a few days we’re expecting the first real hands-on with products and prototypes based on Broadwell-U. But just how much better is it going to be? A recent test of a new HP envy 15 with the Core i7-5500U processor gives us some clues.

A process change from 22 to 14nm decreases die size and reduces power leakage which means you get more efficiency. When we transitioned from Sandy Bridge to Ivy Bridge we saw 10-20% CPU performance improvements for similar processors based on better Turbo capability – the ‘overclocking’ capability of the processor. If the heat stays low, the CPU can Turbo Boost for longer. We also saw a slight change in the graphics architechture in that Sandy Bridge to Ivy Bridge update and that’s something we’ll also see in the move from Haswell-U to Broadwell-U. In addition to that you’re going to see hardware audio decoding and processing which will reduce power usage further in some scenarios, like watching a film for example.

In a test by The Dave Experience on YouTube (shown below) we see a 4th-gen (Haswell) Core i7 4510U (nominal 2 Ghz) going up against a new 5th generation (Broadwell-U) Core i7 5500U with a nominal 2.0 Ghz clock. The new Broadwell-U CPU was found on an HP Envy 15 in retail shop stock and it’s the same processor that will appear in the high-end models of the new ASUS Zenbook UX303. The GPU clock frequencies are slightly different so a direct comparison of graphics performance is not easy. At best though we’re seeing 20-40% improvements on graphics performance and that’s totally dependant on Turbo Boost. Comparing the two processors on two different mainboard and chassis designs doesn’t give us any conclusive figures but with 3D Mark Vantage clocking in with the new HD 5500 GPU at 5,124 points we’ve at least got a new bar for this performance test using an Ultrabook-class processor. The HD 4400 GPU compared only reached 3,800 points. The graphics score improvement seen here is nice but it’s not going to allow these low-power processors to break through into true PC gaming. 

The ASUS UX303 will come with the new Core i7 5500U (Broadwell-U) processor.

The ASUS UX303 will come with the new Core i7 5500U (Broadwell-U) processor as tested by Dave Bennet on YouTube.

In just a few days we’re going to get more information if the CES build-up teasers are anything to go by. A principle engineer at Intel and closely connected with performance testing on this platform teases us..

His tweets are personal but I know there’s going to be some private testing going on for invited journalists and bloggers in Las Vegas. Expect official intel figures to reach the public on the 6th Jan and for sneaky hands-on testing on the showfloor with pre-release models after that.

 

We’re watching CES closely for Ultrabook references. We’re not expecting much direct Ultrabook news as that marketing gig has finished for now but references might be made and of course, you’re going to see a number of products coming into the sector even if they’re not being called Ultrabooks. In terms of Core M coverage, that will be a UMPCPortal, our sister site focusing on ultra-mobile PCs.

Hat-tip: Sweclockers.

  • Wow!!
    Thank you for review.

  • mike

    asus zenbook ux303 will be update on Broadwell?
    if yes know you +- release day -> febru..march..etc.?

    i want buy one ux303 with geforce 840m but if soon asus update line with broadwell cpu so i wait small time

  • thank for review i’m impress very much

  • forsbobet

    thank you for knoeledge

    ??????? ???

  • Thank you for your article

  • Pingback: freedom mentor()

Mobile PC Database

The mobile PC database contains all you need to find your perfect PC. Mobile PC Database  Core M PCs Broadwell PCs 10-inch Dockables Tablets with Digitizer Lightweight Chromebooks

Trending UMPCs

Acer Aspire E11 ES1
11.6" Intel Celeron N2840
Asus E202
11.6" Intel Pentium N3700
HP Pavilion X2 10
10.1" Intel Atom Z3745
Acer Aspire Switch 10
10.1" Intel Atom Z3745
Lenovo Ideapad Flex 10
10.1" Intel Celeron N2806
Lenovo ThinkPad P40
14.0" Intel Core i7 5500U
Lenovo IdeaPad A10
10.1" ARM Cortex A9 (Dual-Core)
HP Spectre x2
12.0" Intel Core m3 6Y30
Asus Transformer Book Flip TP200
11.6" Intel Pentium N3700
Acer Aspire Switch 10 E
10.1" Intel Atom Z3735F

Follow UMPCPortal on Twitter

Recommended Reading