Update: the original edition of this article mistook Comet Lake 14nm for Ice Lake 10nm. Both chips are slated to power the XPS 13 7390.

One of Intel’s fastest upcoming Comet Lake U-series CPU looks should be the i7-10510U, and it’s slated to power the soon-to-be-released Dell XPS 13 7390 2-in-1 alongside the option for a 10nm Ice Lake CPU (which has few leaks so far).

Benchmarks for this Comet-Lake 15W CPU have just shown up on consumer-tool Geekbench’s website, but any wild expectations for the performance of this chip should be tempered based on the scores put up: The multi-core scores only show a 6.94% increase over one of the fastest 15W 8th generation Whisky Lake CPUs, the i7-8565U, while the single-core performance is actually worse.

The best scores recorded by Notebookcheck for the i7-8565U are 5547 points for 64-bit single-core and 16490 for 64-bit multi-core. On the other hand, the Core i7-10510U found in the listing for Dell’s upcoming XPS 13 7390 scores 5248 on single-core and 17676 in multi-core. That’s a 6.94% performance increase in multi-core performance but roughly a 5.5% decrease in single-core performance for the new 10th gen U-series CPU. You can see the full details on the Geekbench website here.

For comparison, remember that this i7-10510U has a base frequency of an odd 2.29 GHz and maximum turbo frequency of 4.89 GHz while the i7-8565U has a 1.8 GHz base clock and 4.6 GHz maximum. With thermal constraints being equal, you would expect the upcoming Comet-Lake U-series CPU to be faster than an 8th gen CPU of the same series yet with lower clocks. It could be that because this is likely a pre-release XPS 13 7390 being tested, it’s yet to be optimized and better scores may be posted with time. It will be especially interesting to see how the 10nm Ice Lake CPU option for the XPS 13 7390 compares to 14nm Comet Lake.

The XPS 13 7390 2-in-1 is a nice-looking laptop sporting some of the first 10nm U-series CPUs. Unfortunately, it will have a soldered SSD, and I therefore cannot recommend purchasing it.

It’s also important to point out that Geekbench is a benchmarking tool that essentially shows the best-case performance of a chip, and is often not indicative of real-world sustained performance. For sustained performance of a CPU, running Cinebench multi-core in a loop of at least 10 times is recommended.

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