HP Spectre x360 15 Review: A Versatile, Attractive, Premium Ultraportable

Spectre x360 15: SiSoft SANDRA, ATTO Disk And SunSpider Testing

We'll start our benchmarking with SiSoftware SANDRA, or the System Analyzer, Diagnostic and Reporting Assistant. Our testing consists of four of SANDRA's built in subsystem benchmarks: Processor Arithmetic, Processor Multimedia, Physical Disks, and Memory Bandwidth. Then we'll run ATTO, a low level disk throughput benchmark, followed by SunSpider to evaluate JavaScript performance.
HP Spectre x360 15 SANDRA Processor Arithmetic HP Spectre x360 15 SANDRA Processr Multimedia
Sandra CPU Arithmetic And Multimedia

HP Spectre x360 15 SANDRA Memory HP Spectre x360 15 SANDRA Disk
 Sandra Memory and Storage Bandwidth

HP Spectre x360 x15 ATTO
ATTO Disk Benchmark Read/Write Results

Looking at the SANDRA scores, the Spectre x360 15 does not yield any surprises from its Core i7-7500U CPU, which offers two physical cores and four threads of processing power, along with 4MB of cache. Same goes for the memory—at around 22GB/s of memory bandwidth, the two 8GB modules of DDR4-2133 RAM are an asset to the system's overall performance.

The real standout here is the storage. SANDRA pegs read performance at around 2,300MB/s, while ATTO's peak read and write ratings check in at about 1,800MB/s and 1,056MB/s, respectively. Those speeds are attainable because HP equipped this laptop with a 512GB NVMe M.2 SSD that shuttles data through the PCI-Express bus.

JavaScript Benchmark
Next, we have some light-duty Javascript processing tasks, which is typical of web browsing usage models. The Webkit Open Source Project suggest the following about the following SunSpider Javascript benchmark...

Unlike many widely available JavaScript benchmarks, this test is real-world with actual developer applications, balanced with different areas of the language and different code types and statistically sound, running each test multiple times to determine and average with error range and 95% confidence interval.

HP Spectre x360 15 SunSpider

Here we can see how systems have improved over time. Whereas scores above 100ms were the norm not all that long ago, we typically see new laptops score under 100ms, and in many cases in the 90s or below. The Spectre x360 15 posted 82.7ms, placing it among several other similarly configured laptops. Though it appears several pegs down on the graph, that's because we have a lot of systems to compare it against—only a few milliseconds separate the Spectre x360 15 from the top of the pack.

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