Guest Post: Deal News Examines the Best Laptop Purchases for Students:

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This is a guest post from DealNews.com:

August marks the start of the back-to-school season, and with it come dozens of sales. But when it comes to laptops — one of the most coveted back-to-school items — what sort of deals can you expect?

To find out, we did a little research. We broke up the potential buying options for laptops into mainstream, high-end, and budget categories. With our help, you'll know what to look for when shopping for the perfect laptop for your student.

The 15" Mainstream Laptop

For a safe, all-around option, a laptop with a 15" display and at least 4GB of RAM, a 500GB hard drive, and a Core i5 processor will serve your student well. Such a system provides ample processing power for everything from basic word processing to HD video streaming (for when your student is done with classes, of course). So when's the best time buy in this category?

Last summer, July proved to be the best month to buy a laptop with the above-mentioned configuration. August was the second best month with the best deal coming in at $550. For the month of September (which is still a factor in plenty of back-to-school sales), the best laptop deal jumped by $50.

So far this summer, deals on 15" laptops have plateaued at $569. While that may be higher than last summer's best deal, it's important to note that it buys you more technical prowess than last year's model. In particular, this year's $569 laptop includes a faster Sandy Bridge–based Core i5 CPU, a noticeable improvement over last year's first-generation Core i5.

If you don't care to have the latest Intel Sandy Bridge processor, the best deals on 15" laptops with last year's Core i5 CPU (not shown in graph) have come in at $509 and $450 for the months of June and July, respectively. So for the greatest savings, you'll want to look at systems with the first-generation Core i5. (Check the processor model; if it has three digits after i5, like Core i5-520UM, then it's a first generation.)


The High-End Desktop Replacement

Now that we've looked at mainstream laptops, it's time to focus on their counterparts — high-end 17" systems. Spec-wise, we narrowed our 2010 search down to a 17" desktop replacement with at least 4GB of RAM, a 500GB hard drive, and a Core i7 processor. The Core i7 is Intel's top-of-the-line flagship CPU. More powerful than the mainstream Core i5, it can be found inside many of today's desktop replacements.

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