hardware rec - What minimal laptop requirements, so I can play Sims 3 and/or Minecraft?
2014-04
user68708
I have no experience with gaming on PC, but want to buy my daughter laptop. She wants to play Minecraft and Sims 3. I found some page, but it says I need "2.4 GHz" CPU. Which is usually not an option. It also says that it should be P4, so I guess it's older CPU, so I can use something slower (in terms of GHz), but more modern.
But what exactly?
How do I compare performance of "P4 GHz" with newer processors?
Anyway - I'm looking for information on minimal hardware requirements for pleasurable gaming on laptop, for Sim3 and Minecraft. What processor(s) should be OK, what graphics, how much RAM? Should I stick with Windows 7, or is Windows 8 OK? And what about 8.1?
zeel
Both games will run well on new mid-level computers, as they both have rather lax system requirements. Minecraft is the more demanding of the two, so I will focus on its requirements.
Minecraft is however an oddball as far as graphics options, it can be tuned down to run on almost any newer computer, or turned up high enough to require a PC designed for gaming. One unfortunate fact is that one of the biggest performance adjustment is render distance - and this can have a huge effect on game play. Tiny render will run on almost any machine, but playing on Tiny is a vastly different game than Far.
So as a minimum? An i5 (maybe an i3), integrated graphics, and 2GB of RAM will run the game well enough to play, but with some minimal frustration. However if you wish to avoid that frustration I would recommend at least an i5 and at least 4GB of RAM and discrete graphics. The exact graphics card isn't very important, any discrete card should be able to run Minecraft fine.
The game can actually run on much less, however lag spikes, low frame rates, and various other issues arise as a result. Many things in the game can cause sudden reductions in frame rate - if you can pull 100 FPS then dropping to 50 isn't a big deal, but if you barely can manage 20 a drop to 10 will make the game nearly unplayable.
As for operating systems as long as she isn't dead set against Windows 8 for some reason there is no need to avoid it. (8.1 is a free upgrade, so even if the system comes with 8 it's best to install the update).
Dan
Basically, I'm looking for some do's and don'ts. Is it bad to keep my laptop plugged in when I'm not using it (majority of the time)? Is it bad to plug it in once I've finished using it (with it having something like 30% or 70% life left)?
JRobert
Depends on your battery's chemistry, but assuming LiIon, most recommendations I've read have included:
- not running it all the way down (unlike NiCad chemistries that got "lazy" if they weren't run from full-charge to discharge).
- leaving it at ~ 40% charge if it will be out of use for long periods
- keeping it cool (e.g. remove i if you tend to mostly use the machine plugged-in).
random
I recommend doing the following to optimize battery life:
- Keep my battery as cool as possible.
- Don't worry about whether it's plugged in or not. When it doubt, keep it plugged in so it uses AC power instead of battery, unless of course it's getting hot.
It turns out that the two methods I originally posited are largely moot. The only thing that really matters is temperature.
"Temperature was the most significant factor contributing to the cell degradation, with state-of-charge (SOC) and discharge pulse length of secondary importance." (Liaw et al.)
Furthermore, it turns out that the decay can be accurately mathematically modeled:
Q = A exp(−Ea/RT) * t^z (See Ramadass et al. for explanation of terms)
However, the dominant model is that of the Arrhenius forumla, which generically predicts time-to-failure as a function of temperature.
The figure below shows the capacity at various cycle counts. Just look at the capacity on the x-axis. The top graph is at 25 C, the bottom at 50 C.
After 600 cycles, the cooler battery had ~2x the capacity
P. Ramadass et al. / Journal of Power Sources 123 (2003) 230-240
Fig. 7. Simulated discharge curves based on semi-empircal model for temperatures (a) 25 C and (b) 50 C. The dotted curves represent the experimental data obtained for Sony 18650 cells for the respective cycle numbers.
! [Effects of cycling and temperature on Lithium Ion battery degradation] [1]
While I could still find no evidence on the behavior of Mac power circuitry, there was helpful information on the official Dell website. Two items specifically stood out.
Q. When docked or AC adapter is plugged into a wall outlet, am I using my battery charge?
A. No.
Q. Should I totally discharge, then recharge my Dell laptop battery occasionally to make it last longer?
A. No, discharging and charging does not increase the life of a Lithium Ion technology battery.
However, it is important to note that Apple and Dell charging circuits may be different. Although, given that Dell does this, I assume Apple does as well. On this assumption, unless someone can provide sources to claim otherwise, I will assume that the Apple charging circuitry is smart enough to know this.
I encourage anyone to continue exploring this question and challenge my assumptions. Please see the sources below if you're curious for a more detailed explanation.
Sources
Ramadass, P., Bala Haran, Ralph White, and Branko Popov. "Mathematical Modeling of the Capacity Fade of Li-ion Cells." Journal of Power Sources 123.2 (2003): 230-40. PDF
Liaw, B., R. Jungst, G. Nagasubramanian, H. Case, and D. Doughty. "Modeling Capacity Fade in Lithium-ion Cells." Journal of Power Sources 140.1 (2005): 157-61. PDF
Ning, G. "Capacity Fade Study of Lithium-ion Batteries Cycled at High Discharge Rates." Journal of Power Sources 117.1-2 (2003): 160-69. PDF
Ramadass, P., Bala Haran, Parthasarathy M. Gomadam, Ralph White, and Branko N. Popov. "Development of First Principles Capacity Fade Model for Li-Ion Cells." Journal of The Electrochemical Society 151.2 (2004): A196. PDF
Zhang, D., B. S. Haran, A. Durairajan, R. W. White, Y. Podrazhansky, and B. N. Popov. "Studies on Capacity Fade of Lithium-ion Batteries." Journal of Power Sources 91 (2000): 122-29. PDF
Note: This comes from my recent answer on Ask Different. I thought it would be very relevant on Super User as well.
studiohack
Laptop batteries' ideal life (from my experience) is around 2 to 2 1/2 years...I have a modern laptop around 2.5 years old, and the battery is already in questionable condition, even though it has been plugged in 90% of the time...Yes, it is true not to drain the battery completely, because it takes a charge cycle out of the life of the battery...
Honestly, if you are at your desk, and the battery is charged, I would recommend taking out the battery entirely. This way, you do not need to worry as much about it's life, at least in the long run.
Hope that helps!
Related: http://superuser.com/questions/77457/what-is-it-that-kills-laptop-batteries
omnibrain
Modern lithium-ion batteries nearly don't suffer the memory effect. But you should not drain it completely till your laptop powers of because there is no energy any more. Hard to happen under Windows, but perhaps if your computer is stuck booting, or your OS is crashed. The main problem is heat. High temperatures increase the aging of batteries significantly.
Oliver Salzburg
If you are on Windows, you can use this small free app to check your battery health in units for Designed Capacity, Full Capacity and Charged Capacity: HWMonitor.
Merstzik
Advice for NiCad batteries
One thing you should do to help is about once every month, drain the battery completely and then recharge it completely.
AndreKR
Try to reduce the cycle count e.g. by not leaving the laptop in standby mode while running on battery.
eug
Try to connect to the wall when doing CPU-intensive tasks like installing updates, watching video, etc. This will reduce the wear on your battery, i.e. less charge-discharge cycles.