The Intel Core i7-8750H is a 45 watt, 6-core processor that’s proven popular with PC makers in recent months. It shows up in a lot of gaming notebooks and mobile workstations, and it’s the chip that powers the Lenovo ThinkPad P1 laptop I picked up during a pre-Black Friday sale last week (it’s still on sale, by the way).

Intel’s Core i7-8559U processor, meanwhile, is a 28 watt, quad-core chip based on the same “Coffee Lake” architecture. Despite the lower TDP and CPU core count, this processor has higher performance graphics and performs almost as well, if not better, in most benchmarks.

The Core i7-8559U is a much more uncommon chip — the only computers I’m aware of that uses the chip so far are the 2018 Apple MacBook Pro 13 and Intel’s BOXNUC8i7BEH1 “Bean Canyon” NUC mini desktop.

Fortunately I happen to have one of the latter on my desk for review. So I decided to run some tests comparing performance of the two computers.

The first thing I should point out here is that there are a few important differences between the two machines I’m testing other than the CPU.

One is a laptop, the other is a tiny desktop. The Lenovo ThinkPad P1 has a PCIe NVMe SSD, while the Bean Canyon NUC is using a 2.5 inch SATA III SSD. And the ThinkPad P1 features NVIDIA Quadro P1000 graphics, while the Intel NUC has Intel Iris Plus Graphics 655.

That means the mini desktop has more powerful integrated graphics than most Intel-powered computers, but the ThinkPad P1 has discrete graphics which helps it come out way ahead in tests that leverage a GPU.

OK, so let’s take a look at those benchmarks:

Unsurprisingly, the Lenovo laptop came out ahead in all the 3DMark graphics tests.

It also achieved the highest PCMark score of any computer I’ve tested to date… but just barely. The NUC came in a very close second place in this test, which measures overall performance through a series of different tests.

Things get even more interesting when you take a look at the GeekBench and Cinebench scores.

The ThinkPad P1 with its Core i7-8750H came out ahead in the Cinebench multi-core test, but the NUC with its Core i7-8559U processor actually got a slightly higher score in the Cinebench single-core benchmark.

Dig into the specs for these two chips and that makes sense:

  • Core i7-8750H – 6-cores/12-threads, 2.2 GHz base/4.1 GHz turbo, 45W TDP, Intel UHD 630 GPU
  • Core i7-8559U – 4-cores/8-threads, 2.7 GHz base/4.5 GHz turbo, 28W TDP, Intel Iris Plus 655 GPU

So while the Intel Core i7-8750H has more CPU cores and a higher TDP, the Core i5-8559U has higher per-core frequencies.

In fact, when I ran GeekBench, the Intel NUC came out ahead in both single-core and multi-core benchmarks.

When it comes to real-world performance, I suspect most users won’t notice much difference between the two processors for day-to-day tasks. The difference is most likely to kick in when you’re running photo or video editing applications optimized for multi-core architecture. But even then it doesn’t look like the difference is all that large — and in some situations the lower-power processor may be a better option.

It’s too bad there aren’t more laptops that use the chip yet.

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3 replies on “Benchmarks: Intel Core i7-8750H vs Core i7-8559U”

  1. This is a practical example of why Geekbench is awesome for determining instanteous or boost performance and misleading with sustained performance. I imagine if a sustained CPU performance test like software-only (no GPU acceleration) video encoding was run, the H class CPU would come out ahead. I have seen this phenomenon happen with the Apple A-series CPUs in 3DMark Physics and TabletMark where Apple’s so-called phenomenal performance is no longer so phenomenal.

  2. Yes, there is a more comparable device out there which also uses the core i7-8559U!
    The Macbook Pro 13 2018.
    It would be much better to compare a notebook with another notebook instead of with a desktop PC, because a notebook uses a totally different power envelope as a (Mini)desktop PC.

    1. Good point. I forgot about the MacBook Pro because Apple doesn’t make a habit of saying which specific chips they use, and also these are the only two devices I’ve got handy, and I was surprised to see how close the scores were in benchmarks, which prompted this article.

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