Are these two the same TV?

Yes. Both are the LG OLED evo C6 in 65 inches, model OLED65C6AUA. The listings differ in how much detail they show, not in the hardware.

Which is better for gaming?

Both. Each has 120Hz native refresh, VRR up to 165Hz, G-Sync and FreeSync Premium, plus sub-millisecond response. The C6's four HDMI 2.1 ports let you connect a console and a PC without a switcher.

Which is better in a bright room?

Neither has an edge; they share the same panel. OLED evo with Brightness Booster is brighter than older OLEDs but still dimmer than top mini-LED LCDs. Curtains or bias lighting help.

Is the C6 worth stepping up to over a mid-range LCD?

If you watch in a dim room and care about contrast, yes. Perfect blacks, wide viewing angles and strong gaming features are the payoff. In a very bright room, a bright LCD may suit you better.

Does it support Dolby Vision and Atmos?

Yes. Both listings confirm Dolby Vision and Dolby Atmos. The A listing adds 40W 2.2 speakers and AI Sound Pro up-mixing.

How long will it last?

LG rates the panel for a long life, and OLED care features reduce burn-in risk. Avoid leaving static logos or news tickers on for hours at high brightness.

LG C6 65" OLED evo TV vs LG evo C6 OLED65C6AUA 65" OLED TV

These are the same TV: the LG OLED evo C6 in 65 inches, listed under two names. The C6 uses a self-lit OLED panel with pixel-level dimming, the Alpha 11 Gen3 processor, four HDMI 2.1 ports and 120Hz native refresh (VRR up to 165Hz). Owners and reviewers praise its perfect blacks, wide viewing angles and low input lag; the known trade-offs are lower peak brightness than high-end LCDs in bright rooms and the risk of static-image burn-in. Buy whichever listing matches the exact model number you want.

Choose the LG 65" OLED EVO 4K AI Smart TV if you want the C6 with the full spec sheet spelled out and a 65-inch panel.
Choose the LG evo C6 OLED65C6AUA if you want the same C6 panel and only need the core specs confirmed.

Prices

LG C6 65" OLED evo TV: $1,186.00 at Greentoe (last seen Nov 12)