Eurocom P5 Pro / Clevo P750ZM Review: True DTR
by Jarred Walton on March 10, 2015 10:00 AM ESTClevo P750ZM Battery Life and Power
Battery life is one area where the P750ZM really falls short, but we knew that going before even testing. MSI’s GT72 at least has the option to switch to Intel’s HD 4600 Graphics and can hit 5+ hours; with a desktop CPU and no integrated GPU option, P750ZM has no chance of doing much more than an hour and a half of mobility. It’s a case of going after performance at the cost of battery life.
As expected, the P750ZM ends up offering the worst battery life of any notebook we’ve tested in the past couple of years. Even the Alienware 18 wins by a large margin, as it can be manually switched to integrated graphics. We ended up just shy of two hours in our Light workload, and nearly 1.75 hours in our Heavy testing. If you were to get a 1080p display instead of the 4K IGZO, you could probably break two hours on the P750ZM but not by much.
We also did a test of gaming battery life; interestingly, it appears that Battery Boost works, and not only that but it was forced on when we tested. Disabling Battery Boost had no impact, and the FPS target was stuck at 30. Newer drivers may have addressed this issue, but the only thing that would happen is that battery life would go down. With a 30FPS target running Tomb Raider at 1080p Ultimate settings, we measured battery life of one hour. Battery recharge time was 140 minutes, which is pretty good for an 82Wh battery.
Switching over to power draw, even at idle the P750ZM shows close to 40W power draw at the outlet, which basically reinforces the above results. Things change a bit on battery power, but in the Light test the P750ZM uses ~42W (give or take) and ~47W in the Heavy workload. Plugged in and running games, however, the power draw can easily crest 200W sustained.
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Denithor - Tuesday, March 10, 2015 - link
Okay, duh moment, was reading specs from bottom up looking for HDD/SSD, saw the HDD and didn't go on.Reading fail!
LOL
Buk Lau - Tuesday, March 10, 2015 - link
Jarred, can you post the icc files for the calibrated display? Also, if you check with the service manual provided by Clevo, you'll notice that two of the USB ports are actually USB 3.1 with ASM 1142 used as the bridging controller. I was hoping that you could do some testing with those USB ports but it's a pity that you didn't discover this :(the manual is linked here http://repo.palkeo.com/clevo-mirror/P75xZM/
on page 18 and 22 of the document you'll see the Clevo listed two of ports on the left as USB 3.1 and on page 81 which is the schematic diagram of the USB port shows the ASM1142 controller
JarredWalton - Tuesday, March 10, 2015 - link
I'd have to try and get a USB 3.1 peripheral or it won't do me much good I suppose. I believe Eurocom is also doing monitor calibration standard now (?), though my unit didn't have that.Buk Lau - Tuesday, March 10, 2015 - link
Doesn't AT have a bunch of those lol? I'd assume since you guys did USB 3.1 testing articles beforeJarredWalton - Wednesday, March 11, 2015 - link
Different people in different places -- none of us live all that close to each other, and unless you count Purch (or Anand's house), there is no official headquarters. :)noeldillabough - Tuesday, March 10, 2015 - link
I'm extremely interested in the chip in the new Macbook Pro 13" (Core i7-5557U) and wondering how fast it is, how much power it uses, and how fast the HD 6100 graphics with 48 EUs are...Are any other laptops coming out with this particular chip? Seems like the best portable device chip around, low power but still 28W TDP.
noeldillabough - Tuesday, March 10, 2015 - link
Interestingly the new Aorus X5 has the 5557U in a 15" format with SLI videocards...seems like overkill since there's no optimus support but will be nice to see the benches.will54 - Wednesday, March 11, 2015 - link
Wow I bet that chip is going to bottleneck the X5. seems like a waste to have sli and use a low voltage cpu.Zak - Tuesday, March 10, 2015 - link
Did someone throw up on that keyboard?Khenglish - Tuesday, March 10, 2015 - link
Any idea on why clevo did not include optimus? Does it not work properly with desktop CPUs? The battery life is attrocious. This laptop is much thinner and lighter than older EM and SM series and thus it's a shame that with the improved portability the battery life goes to crap.