Clevo P170EM Battery Life Revisited

I noted in the first P170EM review that battery life was rather poor, even for a high-end notebook. I felt at the time that the BIOS/firmware was to blame, but without an official download location from Clevo I was hesitant to update either notebook. I still feel Clevo is really making a mistake by not providing official BIOS updates—they would rather you contact your notebook vendor and ask for a BIOS—but I decided to go ahead and snag the latest BIOS for the P170EM from the Notebook Review forums’ Clevo BIOS thread. (That you’re able to get better BIOS support via NBR forums than from Clevo is beyond ludicrous.)

Updating the EC/KBC firmware to version 1.00.09 and the BIOS to version 1.00.10 wasn’t quite as simple and painless as I’d like. Specifically, the EC updates (I tried all of them before taking the next step) are for ROM ID P170EMx whereas the AVADirect notebooks both have ROM IDs of P170EM (no “x” suffix), so I had to use the “ignore ROM ID” option. I don’t if that’s something related to the notebook vendor or just par for the course, but by default I couldn’t just run the flash utilities. The BIOS on the other hand updated without any issues. When all was said and done, I then retested battery life, and sure enough things have improved quite a bit—though oddly, where the GTX 680M and HD 7970M were quite close before, the GTX 680M now does quite a bit better. Both dGPUs should be off during our battery life testing, so I’m not sure what’s going on here; perhaps the BIOS/firmware still isn’t fully optimized for the AMD GPU.

We’re including the before/after results for both the HD 7970M and GTX 680M after applying the BIOS/firmware updates. The original BIOS was 1.00.05 while the updated BIOS is 1.00.10.

Battery Life - Idle

Battery Life - Internet

Battery Life - H.264 Playback

Battery Life Normalized - Idle

Battery Life Normalized - Internet

Battery Life Normalized - H.264

Oh what a difference a BIOS makes. We’re still nowhere near matching the prowess of designs like the Samsung Series 7 or Razer Blade, but we’re dealing with a substantially larger chassis that has the ability to support three spindles plus an mSATA drive—not to mention FireWire and several other seldom-seen features. I still feel like both the Alienware M17x and the P170EM could do better with further optimizations, but at least with the updated BIOS/firmware Clevo is able to surpass the normalized battery life of Alienware in most cases.

While the battery life improves on both laptops with the updated BIOS, it’s perplexing that the HD 7970M version is using substantially more power—idle power draw is ~15.1W for the GTX 680M compared to ~17.3W for the HD 7970M. We’re not using the same physical notebook of course (so there’s a different LCD, motherboard, battery, etc.), but even so that particular result is more than a minor deviation. Power draw during our Internet test is ~16.7W for the 680M vs. ~18.3W for the 7970M, so it’s a bit closer, and for H.264 playback the 7970M draws ~21.7W vs. ~20.6W for the 680M. Basically, the higher the loads on the system as a whole, the closer the two notebooks are in battery life and power use.

But despite the above concerns regarding AMD vs. NVIDIA, the fact is the P170EM is a large gaming notebook and battery life is only a secondary (or tertiary) concern. It’s good to see close that we’re able to hit around 4.5 hours of moderate use on battery power, and that should be enough for most people. Sure, if you fire up a game (or happen to come unplugged), your battery isn’t going to last that long, but if you’re trying to bulk up by carrying around a 10+ pound notebook + accessories at school you could conceivably get through four hour long classes before you need to plug in. I should also note that charging times are quite reasonable for the battery, taking under two hours to reach 100% even when you’re putting a significant load on the system; that’s where having a large enough power adapter is beneficial: under full load, the P170EM still doesn’t come near the 220W rating of the power brick.

GPU Utilization Investigations AVADirect’s Clevo P170EM: GTX 680M FTW
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  • JarredWalton - Wednesday, October 17, 2012 - link

    It's very simple to say, it's 15-20% faster, my overall experience was better, and if I were in the market for a high-end gaming laptop I would be unhappy with the [current] drivers on the AMD platform, plus the inconsistency of performance.

    However, if you love Sniper Elite V2 and hate most other games, I sure hope you won't just read that above sentence and assume it's an absolute fact that GTX 680M is better. That's what the rest of the review is for (all 7000 words of it). You're nitpicking over some remarks in the conclusion and suggesting I presented an "inconsistent" piece of information by discussing FPS and performance, when again the conclusion states:

    "That’s a cost increase of 15% for a typical gaming performance increase of around 20% at high quality settings (e.g. 1080p 4xAA). Add to that the proven track record of NVIDIA's driver updates and for gaming purposes, that extra $200 is money well spent."

    You've got a brain Krumme; use it. If you're in the market for a GPU upgrade to your laptop and you can actually get an MXM 3.0 module with HD 7970M or GTX 680M that will work in your system, obviously you're going to need to look at different pricing that the cost of an entire notebook. My statement comparing total notebook cost with the two GPUs is for 99.9% of people that buy a notebook and don't upgrade it, and I'm not going to try to appease you by dumbing it down. I'm also not going to fall for the marketing gimmick of saying, "NVIDIA is only 20% faster on average but costs 50% more!" That's blatantly false and misleading information for most people shopping for a gaming notebook. Just like I didn't compare a base model Alienware M17x R4 with a GTX 660M, 6GB RAM, 500GB HDD, 1600x900 LCD, etc. to the P170EM reviewed and say, "Wow, Alienware M17x R4 costs $1500 while the P170EM costs $2250!"
  • krumme - Thursday, October 18, 2012 - link

    You are right. I am nitpicking and i am also constantly hysterical critical. Thats why i read Anandtech.

    And i dont expect you to appeace me, thats also why i read Anandtech. I know my words can be very harsh, sorry for that. I will try to improve it in my next life, as it seems i am to old and sour to change.

    And i have the higest regard for the quality of the review, and especially for you beeing involved in the discussion afterwards.

    I think its a strawman when you put up the statement "NVIDIA is only 20% faster on average but costs 50% more". Technically its right, and its methology right by comparing single cost to single benefit, but putting it on words is walking all over the fact that the benefit is one of the most important - ift not the most important - benefit of the rig. Then the review would be skewed. We agree.

    But you argument is still comparing a - single - benefit, to the - total - cost.

    I am not saying you judgement is wrong, probably for most people it is right, but you are not to be the judge. We have plenty of opinion on the net, and thats not why i read Anandtech.

    An example following yours. A gamer looking for a Dell machine. He can choose between the 17r with 650 gfx or the Alienware with 660. A lot of gamer would choose the Alienware, not because of the minor difference in speed, but because of the other qualities. Even if there is a huge difference in total cost. Thats because there is way more to a gaming rig for a gamer than FPS. For what and to what degree is a personal preference. The reviewers job is to broaden the view for the reader and put numbers on the consequences.

    Your conclusion negates that, directly comparing a single benefit to total cost.

    Ofcourse AMD and Nvidia have two different ways they want this presented in the review. Both are wrong.
  • JarredWalton - Friday, October 19, 2012 - link

    So what exactly would you have me say? Just "it's 20% faster than 7970M, which is a decent jump but not earth shattering. Of far more import is the driver situation. Also note that even the fastest mobile GPU right now, the GTX 680M, is basically offering similar performance to a desktop GTX 660. That's a $230 part (albeit with less memory)." That would be true, but I'm not sure it's useful unless you're wondering "should I get a gaming notebook or a gaming desktop?"
  • Notmyusualid - Friday, October 19, 2012 - link

    Well, I own dual 7970Ms, and I think Anandtech has spoken; I would have been better spending on the Nvidia solution, as opposed the AMD offering, and I won't whine about it.

    Not a fan-boi either way, the benchmarks speak for themselves, Nvidia wins.

    Mostly mine work, but on some occasions (Shit 2) they are less than perfect.

    Thanks for the review, and like the first poster said, if at all possible, could you pit Crossfire against SLI for us?
  • krumme - Friday, October 19, 2012 - link

    You should say exactly nothing in the conclusion, and let your review stand as it is.

    For one gamer the 20% could be decisive for if he could play his games on the notebook at all (at native resolusion at good quality), or really make a huge difference. And you have given him the numbers.

    For another gamer, the extra performance doesnt mean extra user benefits, but he can enjoy all the other qualities of the notebook. And you have given him all the details.

    I know its expected in the conclusion there is some sort of judgement, - like its a boxing fight. But instead i would just point out the strong and weak sides for different users on the notebook and the gfx solution.

    Regarding the enduro I would lean on the side regarding it as beta not working, and therefore something that as a start should be disabled in the bios. Its simply not a working feature yet. There is a lot of users buying notebooks, also in this class, that is not nerds. Having the feature enabled as a standard is an error in my view.

    I dont know if its relevant for the readers to know that they can buy say a 660 on desktop side and get same performance.But i think its a good question. Its about putting the notebook in its context. And againg perhaps some readers dont use all their time comparing between desktop and notebook but buy either notebook or desktop from tradition. They use their time gaming instead of nerding - and they probably as a result use less money on their gear. Unlike us others who try to get as many excuses to create a need, and buy some new expensive gear.
  • krumme - Friday, October 19, 2012 - link

    I know in the conclusion its expected that there is some final judgement like its a boxing match.

    But I dont expect you to say something, but let the review stand as it is.

    For one gamer, the extra fps can be crusial. And you have given him the numbers.

    For another, its doesnt give any noticiable difference, but he is more interested in the other qualities. And you have given him the details.

    Regarding enduro, its simply not a working feature for other than nerds. And i think it should have been disabled in the bios as a standard, until the drivers are ready.

    I think its a good question if its relevant to compare to desktop solutions. Perhaps, as many of your readers use their time gaming, or being in the off topic thread in the forum, instead of nerding, and therefore probably dont use so much time comparing, but buy more or less by habit.
  • krumme - Friday, October 19, 2012 - link

    Man !

    Disregard the two above
  • TokamakH3 - Wednesday, October 17, 2012 - link

    Only $170 more for the 7970 over the 7870 for a 20-30% speed increase? In a $1700 machine, that's only 10% more! What a huge bargain! 10% more money for a 20-30% performance increase! Why don't you recommend that?
  • Uritziel - Tuesday, October 16, 2012 - link

    There is certainly no logical flaw in looking at these two laptop configurations and seeing a ~20% gaming performance increase for a ~15% cost increase. Furthermore, the difficulty (and often infeasibility) of upgrading the gpu in many laptops elevates such reasoning from merely correct to obviously sensible. If this article compared two smartphones with the same numbers, would you make your same trollish complaint?

    Either way, it's perfectly fine to consider the performance/price ratio from both perspectives. What is NOT fine is your uncalled-for insulting of the author. His reasoning is far from 'idiotic,' and, if such reasoning IS the worst you've seen in the last ~9.5 months, I must conclude you have been cut off from society for almost that same amount of time.

    I urge to you to rethink both your position and attitude in the future. Next time you might responding more like this: "Hey Jarred. I notice how you consider the performance/price ratio from a system perspective in the article. I was hoping you might include a line or two appraising it from a component perspective, as I think it would be helpful to let people know that the gpu alone follows the more traditional performance/price curve. Thanks!"
  • Uritziel - Tuesday, October 16, 2012 - link

    "Next time you might responding..." should be "Next time you might try responding..."

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