Work More Efficiently While Using Less Energy: µOp-Fusion & Co
- 1. Centrino Or Simply Pentium M: The Customer Has The Choice
- 2. High Quality And Very Photogenic: The Thinkpad T40 From The Outside
- 3. Inside: Complex Cooling System And High-Grade RAM
- 4. Invisible Equipment Features: The "Thinkvantage"
- 5. Test Configuration: The Who's Who Of Mobile Equipment
- 6. Pentium M: The CPU Optimized For Working On The Move
- 7. The Old And The New Enhanced Speedstep Technology
- 8. Work More Efficiently While Using Less Energy: µOp-Fusion & Co
- 9. Synthetic Benchmarks
8. Work More Efficiently While Using Less Energy: µOp-Fusion & Co
Besides the features already discussed, the Banias architecture offers a few other "extras" that speed up command execution and make it more efficient, slashing energy consumption per operation for each speed setting.
Among these technologies is Mikro-Op-Fusion, a dedicated hardware stack manager with greatly improved branch prediction. The details of exactly how the individual technologies are implemented will be explained in an upcoming review of the Centrino notebook. Our purpose here is merely to point out the technologies.
Benchmarks Under Windows XP
As usual, we used a mix of synthetic and real benchmarks for the test.
| Drivers and Software | |
|---|---|
| Graphics Driver | ATI 6.13.10.6278 (English) |
| DirectX | Version: 8.1 (4.08.01.0810) |
| OS | Windows XP Pro, Build 2600 SP1 (English) |
| Benchmarks and Settings | |
| SiSoftware Sandra 2003 | CPU MultiMedia / CPU Arithmetic / Memory Bandwidth Benchmark |
| PCMark 2002 Pro Pack - Build 100 | CPU and Memory Tests |
| POV-Ray for Windows | Version 3.5/ Chess2 640x480 AA:0.3 |
| Lame - Version 3.92 | 32 bit DOS-Prompt, 178 MB Wave File, 44100 Hz |
| 3D Mark 2001SE | Version 1.1 - Build 340 - Patch Build 330/ Default Benchmark |
| Quake III Arena, Patch V1.16 | 640x480 - 16 bit / 1024 x 768 - 32 bit / 1280 x 1024 - 32 bit Timedemo, demo001 command line = +set cd_nocd 1 +set s_initsound 0 Graphics detail = Normal |
| Sysmark 2002 | Version 1.0 |
| MobileMark2002 | Mobilemark 2002 Version 1.0 |
We conduct the battery-life measurements under three different sets of conditions in order to accurately reflect typical user behavior. In the first scenario, we let a presentation run in a repeating loop. This roughly corresponds to the usage behavior of a traveling salesperson who makes frequent customer presentations. Anyone who's on the road a lot might occasionally seek some entertainment in the form of watching a DVD in a hotel or airport lounge. In that case, it's good to have a mobile PC with decent battery life on hand. The last task is for all the gamers out there. Here, a demo version of a game provides our test scenario. The demo is repeated until all the juice is gone.
We also went the extra mile and used the synthetic battery benchmark MobileMark2002.
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