Na HDMI 2.0 e ka etsa 4K 120Hz? 'Nete e ka Morao ho Lipalo tsa Bandwidth
1. Meeli e Thata ea HDMI 2.0: Hobaneng 4K/120Hz e Hlōleha
HDMI 2.0's Sekoahelo sa bandwidth sa 18Gbps ke serethe sa yona sa Achilles. A re aroleng dipalo:
-
4K/60Hz = 12.54Gbps (E hatelitsoe ka chroma ea 4:2:0)
-
4K/120Hz = 25.08Gbps (Esita le ka khatello ea 4:2:0)
Qeto:
✅ HDMI 2.0 kan mohele 4K/60Hz kapa 1440p/120Hz
❌ 4K/120Hz e feta bandwidth ea eona ka 39% – ho baka di-screen tse ntšo kapa ho etsa dintho tse entsweng ka maiketsetso.
Teko ea 'nete: Ho hokela RTX 4080 ho LG C2 OLED ka Cable ea HDMI 2.0:
-
Sephetho se behiloe ho 4K/120Hz → "Letšoao le Tsoa Sebakeng se Sele" phoso
-
E theotsoe ho 4K/60Hz → pontsho e tsitsitseng.
2. Bolotsana ba "Fake 120Hz": Kamoo Barekisi ba Kgelosang Kateng
Hlokomela likhoele tse rekisoang ka tsela e latelang:
"HDMI 2.0 e tšehetsa 4K 120Hz!"
Kamoo ba qhekellang kateng:
-
Ho sebelisa sampole e nyenyane ea chroma (4:2:0) ho ka khopolo-taba kenya 4K/120Hz ho 18Gbps
-
NneteLi-monitor/TV tse ngata u se ke ua amohela 4:2:0 ho 120Hz – ho qobella ho kgutlela morao ho 60Hz.
Lintlha tsa laboratori:
| Setulo | Botsitso ba HDMI 2.0 |
|---|---|
| 4K/120Hz 4:4:4 | ❌ Ho hloleha |
| 4K/120Hz 4:2:0 | ⚠️ 27% ea lisebelisoa lia sebetsa |
| 4K/60Hz 4:4:4 | ✅ E tsitsitseng |
3. Tharollo: E netefalitsoe Hdmi 2.1 bakeng sa 4K ea 'Nete/120Hz
Ho notlolla 4K/120Hz ea 'nete, o hloka:
-
Bophara ba HDMI 2.1 ba 48Gbps
-
Setifikeiti sa HDMI sa Lebelo le Phahameng la Ultra (Khoutu ea QR e ka netefatsoa)
-
Khatello ea Phallo ea Pontšo (DSC) 1.2 tšehetso (khatello e se nang tahlehelo)
Hobaneng likhoele tsa rona li netefatsa ts'ebetso:
-
Li-core tsa koporo tse se nang oksijene tse 24AWG → tahlehelo e nyane ea lets'oao
-
Thibelo ea EMI ea mekhahlelo e meraro → ha ho na tšitiso ho tsoa ho li-router/lifono
-
E lekiloe ka bongata ho 48Gbps (ka li-CTA tsa Foramo ea HDMI)
👉 Keletso ea Setsebi: Hlahloba mofuta oa koung ea HDMI ea sesebelisoa sa hau!
-
PS5/Xbox Series X: E hloka HDMI 2.1 likou + likhoele bakeng sa 4K/120Hz
-
Li-GPU tsa NVIDIA RTX 30/40: Sebelisa DisplayPort 1.4a haeba HDMI 2.1 e sa fumanehe.
Lintlha tsa bohlokoa bakeng sa basebelisi
-
HDMI 2.0 ≠ 4K/120Hz: Likhapo tsa Bandwidth ho 18Gbps (4K/60Hz max).
-
Maqheka a papatso a teng: Mabitso a “4K 120Hz” ho dikheibole tsa HDMI 2.0 a sebedisa dikgeo tsa botekgeniki.
-
Setifikeiti se bohlokoa: Feela HDMI ea Lebelo le Phahameng ka ho Fetisisa Likhoele li netefatsa hore phallo ea 48Gbps e fihla.
-
Bohlale ba ho paka bokamoso: Cable ea HDMI 2.1Mosebetsi o tsamaisana le disebediswa tsa kgale ka morao.
-