Dell XPS 15 L521X: A Detailed First Look

First Impressions: Skin Deep?

When I first laid hands (and eyes) on the new XPS 15, I was extremely impressed. It’s such a noticeable upgrade compared to previous XPS laptops in terms of build quality that I really can’t understate the fact. Dell’s in a bit of a Catch-22 here, of course, with a design that’s very similar to the MacBook Pro 15. On the one hand, if they do a 15” laptop that’s similar but not built as well (e.g. the XPS 15z from last year), they get complaints from people saying, “Apple can do it, so why can’t Dell?” Now they’ve basically silenced those naysayers and instead they’ll get others accusing them of copying Apple’s design. Does that really matter, though? I’d rather have something that looks and feels like a high quality laptop that borrows good design elements from other successful laptops than to get a unique laptop that looks and feels poor. Dell has also taken a few steps to differentiate their design from Apple’s MBP15, and as someone who has often wondered, “Why don’t other OEMs make machined aluminum laptop chassis?” it’s nice to see a laptop that really nails that element of the design.

As good as the XPS 15 looks, it also has plenty of performance potential. The XPS 15z made some compromises to keep thermals in check, and with Ivy Bridge and Kepler moving the CPU and GPU to smaller process nodes Dell is able to increase performance within the same power envelope. 1080p gaming is still going to be a bit too much with some titles, but if you’re really looking for a gaming laptop Dell already covers that market with their Alienware brand. The XPS is basically a stylish and well built brand that straddles the line between business offerings like the Latitude and Vostro laptops and gaming offerings like the Alienware and Inspiron SE models. (Yes, if you didn’t realize, the new Inspiron SE 15 and SE 17 both sport more powerful GPUs than the XPS 15—along with larger, bulkier chassis that don’t have the cachet of the XPS line.)

The problem is that good looks and performance potential can only take you so far, and when you really try to put the pedal to the metal with the XPS 15, the engine overheats and you end up taking an unscheduled pit stop. How big of a problem this is will depend on what you plan on doing with the laptop. I can certainly see gamers getting very frustrated with the current throttling issues, but I suspect the next official BIOS update will largely address those concerns. For general use—Internet surfing, office tasks, listening to music and watching movies, video encoding, etc.—the throttling problems will most likely never even show up. It’s only when you really push both the CPU and GPU that heat becomes a problem. So if you’re not a super demanding laptop user but you want a stylish and sturdy laptop that should last for half a decade—and you don’t want to deal with business class laptops, or OS X and Apple products—I can still readily recommend the XPS 15 as a good notebook that pleases me on many levels.

As good as the XPS 15 might be for mainstream/fashion conscious users, for power users or enthusiasts that really like to push their hardware to its limits I suspect that the XPS 15 will come up short. Even if Dell can create a BIOS that won’t throttle as badly as the current A04 release, I remain skeptical of their ability to have the XPS 15 run a heavy CPU+GPU load without dropping clock speeds on one or both chips. 1.8GHz was stable with my ThrottleStop testing, but that’s in an air conditioned testing environment, and I wasn’t using the most demanding workloads possible. If you run a pathological workload or “power virus” like OCCT or Furmark or similar, and if you require a laptop that can handle such applications without throttling CPU or GPU clocks, you’ll want to look elsewhere—and probably forget about laptops that are less than an inch thick. And on a related note, I should mention that I’ve seen at least some minor throttling with several other “thin but fast” laptops, so Dell’s not alone here; we’ll be making a concerted effort to check for throttling on all future laptop reviews.

For now, the throttling issues are a big enough concern for me that I’m holding off on a final verdict until we can see what the firmware updates bring. I know from past experience that laptops that seem to run a bit hot and/or loud when they’re new will only get worse as they start to age. If running any game on the XPS 15 today means 100% fan speed and juggling CPU/GPU clocks to keep thermals within an acceptable range, a year or two down the road you might be looking at a laptop that can’t really handle gaming at all. Maybe that matters to you and maybe it doesn’t, but if you don’t plan on doing anything that leverages the discrete GPU, why even have it there in the first place? Depending on what Haswell brings to the table, we might actually see dGPUs disappear outside of dedicated gaming laptops like the Alienware line—and I’m not sure that’s even a bad thing.

If we were judging the XPS 15 by appearances alone, it would easily walk out of here with an award. Depending on what Dell can do with the firmware over the next couple of weeks, we might still have a delayed prize to hand out. Unfortunately, out of the gate the XPS 15 stumbles and Dell will have to work to make up the difference. Until that happens, the XPS 15 is a beautifully crafted laptop with some personality quirks that could be hard to live with long term. Make sure you know what you’re getting into before committing to a relationship, or you could end up feeling burned.