Handbrake performance

Handbrake performance
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That CPU superiority in Cinebench also shows in our Handbrake test, where we use the free program to transcode a 30GB MKV file into an Android tablet–friendly MP4. The performance in Handbrake should give a good idea of the XPS 15’s video editing performance in general. Anyone doing video editing or 3D rendering with a laptop will probably be rolling larger laptops like these quad-cores.
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As you can see from our PCMark 8 Work Conventional test, which simulates everyday office tasks, this Dell is ahead of the pack—but not in any exciting way. For the most part, you’ll never feel the difference between a quad-core Core i7 and a low-power Core m in office tasks. If you really only do just office work, it makes more sense to buy a different laptop.
Besides the quad-core CPU, the other performance highlight of the XPS 15 is its GeForce GTX 960M chip. On paper, it’s very similar to the Samsung Book 9 Pro’s GeForce GTX 950M. Both have the same 128-bit memory bus, 80GBps of memory bandwidth, 640 shader cores, and a memory speed of 1,253MHz. The key difference between the two is clock speed: The Samsung’s GPU clock is set to 915MHz with a boost speed of 928MHz. The Dell’s GPU clock is rated at 1,033 with a boost speed of 1,098MHz.
That’s the reported specifications, though. Laptop makers can tune the clock speeds to match the cooling capability, or they can choose to minimize fan noise by sacrificing speed. Running a Furmark stress test on both laptops reveals that Dell likes to push performance to the wall for as long as it can. The XPS 15 actually starts a little above its top boost speed of 1,098MHz, while the Book 9 Pro starts underclocke d at 750MHz.
After five minutes of this torture test, the XPS 15 held strong with clock speeds at 1,085MHz range. After 15 minutes, it dropped down to a still very respectable 1,019MHz. As for the Samsung—I’ll get into its performance when I write that review, but for now, let’s just say its GPU clocks plummet off a cliff as time goes on. The Book 9 Pro’s fans are definitely quieter, though.
Translated into gaming performance, I’d say the XPS 15 will play a lot of games set to Reasonable. No, that’s not an official game setting, but it should be for people who don’t have high-end graphics cards. The short of it is, the XPS 15’s 960M is a decent entry-level gaming GPU.