Apple MacBook Air 13-inch (M4) vs ASUS CZ1204CM4A
Official ENERGY STAR certified computers from Apple and ASUS, ranked in this category.
Affiliate disclosure: We earn a commission if you buy through links on this page, at no extra cost to you. It never affects our rankings, which come from the published scoring formula. As an Amazon Associate I earn from qualifying purchases. Learn more.
Best for: Official TEC 8.1 kWh, official 32 GB memory
Check price at AmazonBest for: Official TEC 8.1 kWh, official 8 GB memory
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Apple MacBook Air 13-inch (M4) | ASUS CZ1204CM4A | 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. | 8.1 kWh | 8.1 kWh | 35% |
| 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. | 0.3 W | 0.3 W | 25% |
| 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. | 3.4 W | 2.9 W | 20% |
| Official system memoryThe official system memory (RAM) published for the certified configuration on the ENERGY STAR record, in GB. A different official configuration of the same model can list a different official memory figure. Official values above the reference best are clamped at that best for scoring only; the official figure is still shown. | 32 GB | 8 GB | 20% |
| Official ENERGY STAR unique ID | 4,512,698 | 4,518,263 | info |
| Official model name | MacBook Air 13-inch (M4) | CZ1204CM4A | info |
| Official model number | A3240 | CZ1204CM4A | info |
| Official product type | Notebook | Notebook | info |
| Official TEC | 8.1 kWh | 8.1 kWh | info |
| Official sleep mode power | 0.3 W | 0.3 W | info |
| Official short-idle power | 3.4 W | 2.9 W | info |
| Official long-idle power | 0.7 W | 1.1 W | info |
| Official off-mode power | 0.1 W | 0.3 W | info |
| Official system memory | 32 GB | 8 GB | info |
| Official CPU cores | 10 | 8 | info |
| Official processor brand | Apple | Other | info |
| Official processor name | Apple | MT8189 | info |
| Official CPU base clock | 3.9 GHz | 2 GHz | info |
| Official storage technology | SSD, M.2 | eMMC | info |
| Official ENERGY STAR date certified | 2025-10-24T00:00:00.000 | 2025-12-16T00:00:00.000 | info |
| Official battery capacity | Not listed | 50 Wh | info |
| Source-data note (official battery capacity) | The ENERGY STAR record lists a total battery capacity of 0 watt-hours. That official published figure is outside the range typical for this field, so it is shown here as a source-data note and is not treated as a scored official battery capacity. | Not listed | info |
| Official integrated display size | 13.6 in | 12.2 in | info |
| Official integrated display resolution | 4.26 MP | 2.3 MP | info |
| Official touch screen | No | Yes | info |
| Official 'marketed as a workstation' | No | No | info |
| Other official certified configurations | The ENERGY STAR record lists 2 official certified configurations under this official model. This page uses the official configuration with the lowest official TEC (8.1 kWh). Other official TEC values listed for this model include 8.4. | Not listed | info |
| Official external power supply rating | Not listed | 45 W | info |
| BytePick score | 8.5/10 | 7.8/10 | 100% |
Where each one comes out ahead
Apple MacBook Air 13-inch (M4)
Better published figure on: Official system memory.
What we like
- Official ENERGY STAR record lists a TEC of 8.1 kWh.
- Official ENERGY STAR record lists sleep-mode power of 0.3 W.
- Official ENERGY STAR record lists 32 GB of system memory for this certified configuration.
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.
- Official battery capacity is Not listed (or the published official figure was inconsistent with a typical watt-hour value).
ASUS CZ1204CM4A
Better published figure on: Official short-idle power.
What we like
- Official ENERGY STAR record lists a TEC of 8.1 kWh.
- Official ENERGY STAR record lists sleep-mode power of 0.3 W.
Watch out for
- Official TEC is a certified laboratory annual-energy figure for this configuration, not a utility bill we measured.
Verdict
Both official ENERGY STAR records list 8.1 kWh TEC; compare official sleep power, official short-idle power and official system memory.
- Apple MacBook Air 13-inch (M4): ENERGY STAR Certified Computers V9.0 (pd_id 4512698)
- Apple MacBook Air 13-inch (M4): ENERGY STAR Product Finder (computers)
- ASUS CZ1204CM4A: ENERGY STAR Certified Computers V9.0 (pd_id 4518263)
- ASUS CZ1204CM4A: ENERGY STAR Product Finder (computers)
Related comparisons
LaptopsHP Fortis G2m 14 inch Chromebook vs Apple MacBook Air 13-inch (M2)LaptopsHP Fortis G2m 14 inch Chromebook vs Apple MacBook Air 13-inch (M3)LaptopsApple MacBook Air 13-inch (M4) vs HP Chromebook Plus 14 inchLaptopsApple MacBook Air 13-inch (M4) vs Lenovo Chrome 500e 2in1 G5 M89LaptopsDell P205G vs HP Chromebook G1m 11LaptopsAcer N26P1 vs Dell P205G Full rankingBest laptops, ranked on official ENERGY STAR specs TopicAll laptops