HP 21.45 inch All-in-One Desktop PC 22-dg vs Lenovo ThinkCentre neo 55a 24 Gen 6
Two of the all-in-one pcs in our most energy-efficient all-in-one pcs, ranked on official energy star power figures comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: Official TEC 34.9 kWh, official sleep 1.4 W
Check price at AmazonBest for: Official TEC 38.8 kWh, official sleep 0.9 W
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | HP 21.45 inch All-in-One Desktop PC 22-dg | Lenovo ThinkCentre neo 55a 24 Gen 6 | Weight |
|---|---|---|---|
| Official TECThe official Typical Energy Consumption (TEC) of the certified configuration, in kWh, published on the ENERGY STAR Computers V9.0 record. Lower official TEC is a lower certified annual-energy figure. It is a laboratory result for the configuration shown, not a utility bill we measured. Official values outside the reference range are clamped at the range ends for scoring only; the official figure is still shown. | 34.9 kWh | 38.8 kWh | 45% |
| Official sleep powerThe official Sleep Mode power published on the ENERGY STAR record, in watts. Lower official sleep power means less certified power while the computer is in sleep. If the field is blank it is shown as Not listed. Official values outside the reference range are clamped for scoring only; the official figure is still shown. | 1.4 W | 0.9 W | 30% |
| Official short-idle powerThe official Short Idle power published on the ENERGY STAR record, in watts. Lower official short-idle power means less certified power in that idle test state. Official values outside the reference range are clamped for scoring only; the official figure is still shown. | 10.7 W | 13 W | 25% |
| Official ENERGY STAR unique ID | 4,439,542 | 4,020,861 | info |
| Official model name | HP 21.45 inch All-in-One Desktop PC 22-dg ENERGY STAR | ThinkCentre neo 55a 24 Gen 6 | info |
| Official model number | 22-dg | 13FA | info |
| Official product type | Integrated Desktop | Integrated Desktop | info |
| Official TEC | 34.9 kWh | 38.8 kWh | info |
| Official sleep mode power | 1.4 W | 0.9 W | info |
| Official short-idle power | 10.7 W | 13 W | info |
| Official long-idle power | 1.4 W | 0.9 W | info |
| Official off-mode power | 0.1 W | 0.4 W | info |
| Official system memory | 16 GB | 32 GB | info |
| Official CPU cores | 8 | 4 | info |
| Official processor brand | Intel | AMD | info |
| Official processor name | Core i3 | Ryzen 3 | info |
| Official CPU base clock | 0.8 GHz | 3 GHz | info |
| Official storage technology | SSD | SSD | info |
| Official ENERGY STAR date certified | 2025-06-27T00:00:00.000 | 2025-05-08T00:00:00.000 | info |
| Official integrated display size | 21.4 in | 23.8 in | info |
| Official integrated display resolution | 2.07 MP | 2.07 MP | info |
| Official touch screen | No | Yes | info |
| Official external power supply rating | 65 W | 90 W | info |
| Other official certified configurations | Not listed | The ENERGY STAR record lists 2 official certified configurations under this official model. This page uses the official configuration with the lowest official TEC (38.8 kWh). Other official TEC values listed for this model include 47.3. | info |
| BytePick score | 7.6/10 | 7.4/10 | 100% |
Where each one comes out ahead
HP 21.45 inch All-in-One Desktop PC 22-dg
Better published figure on: Official TEC, Official short-idle power.
What we like
- Official ENERGY STAR record lists a TEC of 34.9 kWh.
Watch out for
- Official TEC is a certified laboratory annual-energy figure for this configuration, not a utility bill we measured.
Lenovo ThinkCentre neo 55a 24 Gen 6
Better published figure on: Official sleep power.
What we like
- Official ENERGY STAR record lists a TEC of 38.8 kWh.
- Official ENERGY STAR record lists sleep-mode power of 0.9 W.
Watch out for
- Official ratings are for the certified configuration shown; other official configurations of this model can list different TEC, memory or processor figures.
Verdict
On published specs, the HP 21.45 inch All-in-One Desktop PC 22-dg scores higher (7.6 vs 7.4). Specs don't capture sound character or feel, so weigh the pros and cons above too.
- Choose the HP 21.45 inch All-in-One Desktop PC 22-dg if this sounds like you: official TEC 34.9 kWh, official sleep 1.4 W.
- Choose the Lenovo ThinkCentre neo 55a 24 Gen 6 if this sounds like you: official TEC 38.8 kWh, official sleep 0.9 W.
- HP 21.45 inch All-in-One Desktop PC 22-dg: ENERGY STAR Certified Computers V9.0 (pd_id 4439542)
- HP 21.45 inch All-in-One Desktop PC 22-dg: ENERGY STAR Product Finder (computers)
- Lenovo ThinkCentre neo 55a 24 Gen 6: ENERGY STAR Certified Computers V9.0 (pd_id 4020861)
- Lenovo ThinkCentre neo 55a 24 Gen 6: ENERGY STAR Product Finder (computers)
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