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Asus k50ie Battery all-laptopbattery.com

The Samsung Notebook 7 Spin’s near-eight hours of life is good, especially considering its 43Wh battery. The two laptops with basically the same size of battery, the Dell Inspiron 13 5000 and Asus VivoBook 5, fare much worse.
We test laptop batteries by looping a 4K video with the display brightness set to about 250 nits and the volume on halfway. The Spin’s 43WHr battery lasted (on average) 468 minutes, or about 7.8 hours, a figure that outstrips the peppier Inspiron 13 5000’s time by more than two hours. Sound like we’ve got a case of the tortoise and the hare (although calling the Notebook 7 Spin a tortoise isn’t exactly fair).Incidentally, the two laptops in our comparison that beat the Spin’s battery life score benefit from their roomier shells and battery capacity.

Like we said before, speed isn’t everything, and indeed, a wicked-fast ultrabook with a dead battery won’t do you any good at all. So while the Samsung Notebook 7 Spin isn’t the fastest 2-in-1 convertible on the block, it boasts an enticing combination of solid quad-core performance and impressive battery life, all in a reasonably small and affordable package.So you want the fastest laptop your money can buy? That’s a challenging goal: It depends on how you define "fast," and to some extent on how you define "laptop," too. Still, we’ll try to help you hit the moving target here.The short version? There are different kinds of speed when you’re talking about laptop performance, some of them intertwined and some not. And it pays to know what kind you need, so that you don’t overspend for one at the expense of the other.

The idea of speed can be sliced a bunch of ways, but in practical terms, you can look at it in terms of (1) CPU processing power and (2) graphical prowess for tasks such as PC gaming or graphics-accelerated content creation. The two are very different things, and we benchmark-test all of the systems that we review with both kinds of speed in mind.Some laptops are strong in one area and not the other. For example, it’s possible to have a notebook with a top-end processor packing lots of cores and threads, but paired with a minimal graphics solution (perhaps just the processor’s integrated graphics silicon, historically modest compared to a discrete graphics adapter). A laptop like this would net you great performance on programs and workloads that take advantage of lots of CPU resources, but little in the way of power for gaming, or applications that take advantage of graphics acceleration.

Likewise, having a dedicated graphics processor, the beefier the better, is the key for speed in games. Most of the time, CPU speed will contribute to the gaming equation insofar as it isn’t a limiter or bottleneck for the graphics chip.Now, the prescription for either need—speed for raw processing, or speed for graphics—is to pack in as potent a main processor or graphics processing unit (GPU) as you can. But when you do that, it illustrates the interplay of three key factors in laptop design: cost, power consumption, and thermals.Higher-powered CPUs or GPUs on a given platform tend to (1) cost more, (2) require more electricity when fully engaged, and (3) run hotter when taxed to the max. That’s why buffed-up gaming laptops tend to be thick, heavy, expensive beasts. Their high-end chips cost more, and the silicon requires more space and weighty thermal hardware to keep cool. The best of all possible worlds—maximum graphics and CPU power, maximum battery life, and thin, light design—is a goal ever out of reach. Rather, laptop design is always a trade-off of these factors, where it’s not possible to twist all of the knobs to 10.

The fastest laptops from a raw-CPU perspective tend to fall into three classes. The first is made up of business machines with top-end processors but integrated graphics. You’ll find them under top vendors‘ business brands such as Latitude for Dell, ThinkPad for Lenovo, and EliteBook for HP.The second consists of high-end gaming laptops that pair a powerful mobile GPU, chosen to blaze through the latest games at a level appropriate for the laptop’s screen, with a CPU at least sufficient not to hamper the graphics chip.And last are mobile workstations, productivity-minded laptops designed for professional content creators and often optimized for the specific advanced applications they use. (This is often referred to in workstation marketing lingo as independent software vendor or ISV certification; these laptops cost their premium, in part, because of it.) You can identify these machines either by brand, such as HP’s ZBook and Dell’s Precision, or by the Nvidia Quadro or AMD Radeon Pro or FirePro GPUs they carry.

At this writing in April 2018, those top chips to seek out are Intel’s seventh- and eighth-generation Core i5, Core i7, and Core i9 processors. (Seventh-gen chips, with model numbers in the 7,000s, are sometimes referred to by the codename "Kaby Lake"; eighth-gen, with model numbers in the 8,000s, by "Kaby Lake R" and "Coffee Lake.")Intel CPU names almost always end in a capital letter or two, which also tells you a bunch. Any Core chip ending with an H (such as the four-core Core i7-7700HQ or six-core Core i9-8950HK) is a maximum-power mobile chip with eight or 12 processing threads that your software can tap via a feature known as Hyper-Threading. Not all CPUs support Hyper-Threading, but if the programs you run are fully multi-threaded (that is, able to take advantage of all available computing threads when performing demanding tasks), this will be a big plus.

You’ll tend to see the H-series chips only in weighty business machines meant for heavy calculation work or data analysis. You’ll also see the H-series in the better grade of gaming laptops, and in some mobile workstations. Some high-end workstation laptops make use of Intel’s Xeon processors, which are at heart server chips specially designed for the demands of accelerating specialized advanced-calculation and content-creation programs. But a Core i7 H-series is more common, and definitely the sign of a legitimately high-end configuration.CPUs ending in U, on the other hand, signify an ultramobile processor. These are lower-power chips designed to work in slimmer, lighter laptops that have limited thermal headroom. Now, depending on what you do with your laptop, these can be perfectly fine CPUs. You’ll be able to do everyday business or office tasks on a U-series Core i5 or Core i7 with no complaints, and on the best of them, demanding content-creation tasks will be possible without painful delays. Just know that the H-series is where the real muscle is.

What about Intel’s rival AMD? The company’s Ryzen mobile processors with Radeon Vega graphics are notable for their above-average integrated graphics, but still tilt more toward office apps and moderate gaming than the full-tilt gaming and workstation prowess of the best separate CPU and GPU combinations.We should also mention a few extreme configurations that actually use high-octane desktop CPUs in laptop chassis, such as the Asus RoG Strix GL702ZC and its eight-core AMD Ryzen 7 1700. These models will be more luggable than portable, laptops more in shape than weight, with vanishingly brief battery life. They’re of interest only to those with deep pockets and a decided need for the maximum available CPU horsepower.

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