Intel Ghost Canyon NUC9i9QNX Review: NUC 9 Extreme Realizes the SFF Dream

Miscellaneous Aspects: Storage Performance

The preceding sections analyzed the performance of two Intel NUC9i9QNX configurations for a variety of workloads, ranging from office usage to professional and industrial workstation applications. We also looked at gaming performance and the suitability of the PC for home-theater use. One of the aspects that we touched on and off across all sections was the evaluation of the storage subsystem. A little bit of additional analysis is in order. In particular, we operated the Intel SSD 905p Optane drive in two modes - directly attached to the CPU's PCIe lanes, and attachment through the PCH.

Directly attaching the Optane drive to the CPU's PCIe lanes yields 40%+ benefit for workstations based on SPECworkstation 3's wpcStorage workload. PCMark 10's storage bench shows a 50%+ increase in storage bandwidth and a 35%+ decrease in average access time for consumer workloads. The storage bandwidth for the secondary drive attached to the PCH also suffers when the primary drive contends with it for access to the CPU through the DMI link, as shown in the PCMark 10 storage bandwidth graph for the secondary drive above.

On the networking side, we are yet to set up our 802.11 ax / Wi-Fi 6 testbed for small form-factor PCs, and hence, there are no bandwidth numbers to report yet. However, it must be noted that the NUC 9 Extreme Kits, like the Frost Canyon NUC we recently reviewed, come with 802.11ax / Wi-Fi 6 support, and its theoretical maximum bandwidth of 2400 Mbps betters the 867 Mbps offered by the Wireless-AC 8265 in the Hades Canyon NUC and the 1733 Mbps offered by the Wireless-AC 9560 in the Bean Canyon NUC. The AX200 WLAN component takes advantage of the MAC built into the CM246 chipset, but uses a dedicated PCIe x1 link to interface (unlike the AX201 / CNVi combination in the Frost Canyon NUC). The AX200 has a 2x2 simultaneous dual-operation in 2.4 GHz and 5 GHz bands and also comes with support for 160 MHz-wide channels.