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Saturday, 25 March 2017

Main components to keep an eye on when buying laptop

Here are the main components to keep an eye on.
  • CPU: The "brains" of your computer, the processor has a huge influence on performance, but depending on what you want to do, even the least-expensive model may be good enough. Here's a rundown. 
    • Intel Core i5: If you're looking for a mainstream laptop with the best combination of price and performance, get one with an Intel Core i5 CPU. Models that end in U (ex: Core i5-7200U) are the most common.  Those with the a Y in the name are low power and have worse performance while models with an HQ offer four cores. Intel's latest-generation, "Kaby Lake" CPUs have model numbers that begin with 7 (ex: Core i5-7300U) so look for those to get the best performance.
    • Intel Core i7: High-end performance for gaming rigs and workstations. Models with numbers that end in HQ or K use higher wattage and have four cores, allowing for even faster gaming and productivity. There are also Core i7 Y series chips that have lower power and performance. Keep an eye out for CPUs that have a 7 in the model number (ex: Core i7-7820HQ) because they are part of Intel's latest, 7th Generation Core Series, and offer better performance.
    • Intel Core i3: Performance is just a step below Core i5 and so is the price. If you can possibly step up to a Core i5, we recommend it.
    • AMD A, FX or E Series: Found on low-cost laptops, AMD's processors -- the company calls them APUs rather than CPUs --  provide decent performance for the money that's good enough for web surfing, media viewing and productivity.
    • Intel Atom: Found on very low-cost laptops -- think $250 and under  -- Atom offers basic performance but more battery life than Celeron/Pentium.
    • Intel Pentium / Celeron: Common in sub $400 laptops, these chips are a little faster than Atom, but offer worse battery life. If you can pay more to get a Core i3 or i5, you'd be better off.
    • Intel Core m / Core i5 / i7 "Y Series" -- Low-power and low heat allow systems with these processors to go fanless. Performance is better than Celeron, but a notch below regular Core i5 U series.
    • Intel Xeon: Extremely powerful and expensive processors for large mobile workstations. If you do professional-grade engineering, 3D modeling or video editing, you might want a Xeon, but you won't get good battery life or a light laptop.

      MORE: Which Laptop CPU is Right for You?
  • RAM: Some sub-$250 laptops come with only 2GB of RAM, but ideally you want at least 4GB on even a budget system and 8GB if you can spend just a little more. For most users, 16GB or more is overkill.
  • Storage Drive (aka Hard Drive): Even more important than the speed of your CPU is the performance of your storage drive. If you can afford it and don't need a ton of internal storage, get a laptop with a solid state drive (SSD) rather than a hard drive, because you'll see at least three times the speed and a much faster laptop overall.
    Among SSDs, the newer PCIe x4 (aka NVME) units offer triple the speed of traditional SATA drives. Sub-$250 laptops use eMMC memory, which is technically solid-state but not faster than a mechanical hard drive.
  • Display: The more pixels you have, the more content you can fit on-screen, and the sharper it will look. Most budget and mainstream laptops have 1366 x 768 displays, but if you can afford it, we recommend paying extra for a panel that runs at 1920 x 1080, also known as full HD or 1080p. Some higher-end laptops have screens that are 2560 x 1600, 3200 x 1800 or even 3840 x 2160, which all look sharp but consume more power, lowering your battery life.
  • Touch Screen: If you're buying a regular clamshell laptop, rather than a 2-in-1, you won't get much benefit from a touch screen and you will get 1 to 3 hours less battery life. On 2-in-1s, touch screens come standard.
  • Graphics Chip: If you're not playing PC games, creating 3D objects or doing high-res video editing, an integrated graphics chip (one that shares system memory) will be fine. If you have any of the above needs, though, a discrete graphics processor from AMD or Nvidia is essential. As with CPUs, there are both high- and low-end graphics chips. Nvidia maintains a list of its graphics chips from low to high end, as does AMD.
  • DVD/Blu-ray Drives. Few laptops come with optical drives, because all software and movies are downloadable. However, if you really need to read / write discs and your laptop of choice doesn't come with a built-in DVD drive, you can always buy an external one that connects via USB for under $20.

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