ASUS G51J Application Performance

Futuremark PCMark Vantage

Futuremark PCMark05

3D Rendering - CINEBENCH R10

3D Rendering - CINEBENCH R10

Video Encoding - DivX

Video Encoding - x264

Video Encoding - x264

Application performance is basically what you would expect of the Core i7-720QM, with the exception of the DivX encoding result. We're not quite sure why the G51J scored so poorly in that test (possibly a software issue due to the switch to Win7), but the x264 and CINEBENCH results show that the gap shouldn't be that large.

PCMark05/Vantage also show a large advantage to the other high-end notebooks, but the Clevo and AVADirect systems have SSDs and that accounts for a large part of the difference. We've shown in other articles that Win7 tends to improve scores in PCMark Vantage by a noticeable amount, and it's a difference you can feel when using a PC. This results in the G51J actually beating the M980NU by a decent amount, though here the i7-720QM is already on par with the QX9300.

Finally, we have a few results from the ASUS G51Vx-A1 (Q9000 system) in PCMark. The older 2005 version has the G51 laptops essentially tied, while PCMark Vantage gives the G51J a large 28% lead. However, the G51Vx also shipped with Vista, so much of that difference is due to the change in OS.

Overclocking of the G51J shows the expected 5% increase in performance in the multi-threaded tests. As noted elsewhere, we actually saw lower performance in PCMark (and games) with the Turbo mode enabled, so most users will be best to leave that setting off.

If you need a fast mobile computer, the G51J will get the job done, but we can say the same of virtually any high-end laptop with a quad-core CPU. If you're doing tasks that really stress the CPU and can benefit from a ~25% reduction in the amount of time required to render images or process videos, something with an i7-920XM might be a better idea. Then again, upgrading to the D900F with its desktop CPU would be the best bet for maximum performance: it's nearly twice as fast as the G51J in x264 and CINEBENCH.

ASUS UL80Vt Battery Life ASUS G51J Gaming Performance
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  • fokka - Wednesday, December 16, 2009 - link

    you say you adjust the critical battery percentage to 1%. while on a battery test thats perfectly ok, i heard (tomshardware) and painfully experienced that discharging a battery to zero is very bad for the cells.

    one time vista didnt shut down in time and the battery lost about 20% of its capacity.

    however, it would be great, if you guys made a battery guide/test and scientifically research the dos and donts of batteries. these little chemical friends are the cornerstone of our digital and mobile lifestyle, it scares me, how little proven knowledge exists on this topic.
  • Ditiris - Tuesday, December 15, 2009 - link

    This is AT. The first thing you should do is a clean install since your readers aren't going to keep all the OEM crapware on the machine.

    I'd also say to make sure you're using the Advanced settings in both Vista and WIndows 7, and with Windows 7 you need to disable any sleep/wake timers.
  • JarredWalton - Tuesday, December 15, 2009 - link

    All the OEM software (other than useful utilities) gets removed/disabled, but doing a clean install every time has its own set of pitfalls. I try to review laptops as the users will get them, and a clean install every time is a bit much. Regardless, this has happened on clean builds as well, so the bloatware you refer to may aggravate the situation somewhat but it's not the root cause.

    As for the Advanced settings, obviously I've gone in there when I discuss things such as prompt for password being reset (to "Yes"). The odd thing is that it's only a subset of settings that get reset. The min/max CPU percentages stick, WiFi power settings stick, and so do most of the settings in the "middle" of the advanced power options. It's the first few settings and the last couple that seem to revert on a regular basis. The UL80Vt for example reverts once or twice a day -- one of the worst offenders in my experience.
  • Diosjenin - Tuesday, December 15, 2009 - link

    I've had it happen fairly often on both Vista and 7, after perfectly clean installs, with no third-party power software. Do not require password on wake creeps back up every so often, as does do not enter sleep mode on lid close if on AC power, even though I've repeatedly disabled them both.
  • danwat1234 - Thursday, August 14, 2014 - link

    The Asus G50VT-X6, the predecessor to the G51J is very sexy. Very speedy with a cheap X9100 CPU you can buy on Ebay. Put in an SSD, buy a few extra genuine 9 cell batteries on Ebay and stick them in the fridge so you'll have a good batteries for the next 7+ years and your good.

    It does run hot but that's ok. It is a part of it's personality. I am waiting until Per core x86 performance of the latest mobile chips are over twice the speed (work done) of my existing laptop. I think I'll wait until 11nm skymont.

    In regards to longevity, I've been crunching on the 9800gs video card and the CPU for years and years with Seti@Home nearly 24/7 with no failures. This thing is reliable. I have burnt out quite a few AC adapters though. DC jack is solid. Running at 85-90C on the GPU most of the time and it really doesn't care.
  • angelinaroses144 - Tuesday, January 30, 2018 - link

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