Lenovo ThinkCentre M920q Tiny vs Lenovo ThinkCentre M920x Tiny

Measured idle power, ECC, NIC chipset, RAM ceiling and IOMMU/passthrough — side by side, every claim cited to a dated third-party source or left blank.

12–15 W idle vs ~29–34 W idleMeasured idle, not TDP. On the cited lower-bound figures the Lenovo ThinkCentre M920q Tiny draws less at idle.
FieldLenovo ThinkCentre M920q TinyLenovo ThinkCentre M920x Tiny
CPUIntel Core i5-8500T / i7-8700T (8th gen, six-core)Intel Core i5-8500T (STH config with AMD Radeon RX 560 dGPU)
Cores6C / 6T (i5) – 6C/12T (i7)6C / 6T
Form factor1L Tiny1 L Tiny (taller M920x chassis with dGPU)
Measured idle power12–15 W idle (120 V, quad/six-core); ships with a 90 W adapter wall-measured · Wall meter (ServeTheHome 120 V) · source · 2021~29–34 W idle (six-core i5-8500T + RX 560 dGPU config, 120 V wall — high because of the discrete GPU) wall-measured · Wall meter (120 V) · source · 2020-12-06
ECC memoryNo (Q370 chipset, non-ECC) source · 2021No (consumer DDR4 SODIMM, non-ECC) source · 2020-12-06
NIC chipset1× 1GbE Intel I219 source · 2021Intel i219 1GbE (vPro) source · 2020-12-06
RAM ceiling64 GB (2× DDR4 SODIMM) source · 202132 GB official / 64 GB unofficial (2× DDR4 SODIMM) source · 2020-12-06
IOMMU / passthroughHas an optional PCIe/M.2 riser slot; widely used for an added NIC. iGPU (UHD 630) transcode works well under Proxmox LXC. source · 2021No sourced passthrough report yet.
AMD reset bug
Price band$120–200 used$200–350 (used, dGPU config)
Proxmox fit (editorial)excellent6-core, 64 GB ceiling, riser slot, UHD 630 for transcode — the most capable used 1L Intel box. Slightly higher idle.cautionvPro Intel i219 NIC and a 64 GB unofficial RAM ceiling are attractive, but the M920x's discrete RX 560 GPU pushes idle to a high 29–34 W — a power-hungry choice versus a plain M920q for a 24/7 host.
Where to buyAmazon Newegg eBay Amazon Newegg eBay

Frequently asked questions

Does the Lenovo ThinkCentre M920q Tiny or the Lenovo ThinkCentre M920x Tiny use less idle power?
The Lenovo ThinkCentre M920q Tiny idles at 12–15 W idle (120 V, quad/six-core); ships with a 90 W adapter (wall-measured); the Lenovo ThinkCentre M920x Tiny idles at ~29–34 W idle (six-core i5-8500T + RX 560 dGPU config, 120 V wall — high because of the discrete GPU) (wall-measured). On the cited lower-bound figures, the Lenovo ThinkCentre M920q Tiny draws less. Idle varies with OS, 120 V vs 240 V mains and power tuning, so treat these as the third-party measured numbers, not a guarantee for your exact unit.
Lenovo ThinkCentre M920q Tiny vs Lenovo ThinkCentre M920x Tiny: which has the better NIC for Proxmox?
Lenovo ThinkCentre M920q Tiny NIC: 1× 1GbE Intel I219 (rated solid). Lenovo ThinkCentre M920x Tiny NIC: Intel i219 1GbE (vPro) (rated solid). Intel i226 is the chipset to want; i225 has a documented dropout history and Realtek RTL8125 works on Linux/Proxmox but not VMware ESXi. Confirm the silicon on the unit you receive with lspci -nn.
Which is the better homelab / Proxmox box, the Lenovo ThinkCentre M920q Tiny or the Lenovo ThinkCentre M920x Tiny?
Lenovo ThinkCentre M920q Tiny: 6-core, 64 GB ceiling, riser slot, UHD 630 for transcode — the most capable used 1L Intel box. Slightly higher idle. Lenovo ThinkCentre M920x Tiny: vPro Intel i219 NIC and a 64 GB unofficial RAM ceiling are attractive, but the M920x's discrete RX 560 GPU pushes idle to a high 29–34 W — a power-hungry choice versus a plain M920q for a 24/7 host. These are our editorial verdicts derived from the cited fields above — not a spec.
Cited public information, not purchasing advice. Idle draw depends on OS, mains voltage (120 V vs 240 V) and power tuning (powertop); onboard NIC silicon can differ between production batches of the same model — confirm with lspci -nn before relying on a NIC or passthrough claim. Full per-model detail and every source on the model pages.

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