Best OBS Settings for the NVIDIA GTX 1660 Super

Best OBS settings for the NVIDIA GTX 1660 Super
NVIDIA NVENC H.264
Encoder: NVIDIA NVENC H.264. Twitch 6,000 kbps CBR at 1080p60, keyframes 2 s, audio 160 kbps.

Test your upload speed with the GTX 1660 Super preset →

Settings for Twitch, YouTube and Kick

PlatformEncoder (Settings → Output)ResolutionBitrate (CBR)
TwitchNVIDIA NVENC H.2641080p60 (900p60 for fast shooters)6,000 kbps
YouTubeNVIDIA NVENC HEVC1080p60about 8,500 kbps
KickNVIDIA NVENC H.2641080p608,000 kbps
  • Twitch: Turn on Enhanced Broadcasting (Settings → Stream) if Twitch offers it to you; it then picks the codec and bitrate itself.
  • YouTube: HEVC needs about 30% less bitrate than H.264's 12,000 kbps.
  • Kick: Kick takes H.264 only, with CBR.

Use rate control CBR, keyframe interval 2 s and 160 kbps audio on every platform. These bitrates assume a steady upload of at least 10 Mbps (about 22 Mbps for 1440p on YouTube); the finder sizes them to your real connection.

Encoder preset

SettingValue
PresetP5: Slow (Good Quality)
TuningHigh Quality
MultipassTwo Passes (Quarter Resolution)
Profilehigh

NVENC barely affects game performance. If a demanding game stutters while streaming, step the preset down to P4 before lowering the bitrate.

Why these settings for the GTX 1660 Super

Encoder hardware: Turing NVENC (same generation as RTX 30). Codecs: H.264, HEVC.

Turing cards (RTX 20 and GTX 16 Super) have the same quality class of H.264 and HEVC encoder as RTX 30, with no AV1.

The GTX 1660 Super (and 1660 Ti) use the Turing encoder, so they stream far better than their gaming speed suggests.

Codecs by platform: Kick takes H.264 only. Twitch's standard ingest is H.264; Enhanced Broadcasting can send HEVC or AV1 where Twitch allows it. YouTube accepts H.264, HEVC and AV1 (OBS 29.1 or newer).

What about the CPU encoder (x264)?

Even on a fast gaming CPU such as the Ryzen 7 9800X3D, the GPU encoder is the better default: it barely touches game performance, while x264 takes CPU time from the game. Use x264 only if your card has no encoder, or on a second streaming PC; start at preset veryfast and move to faster only if OBS shows no encoding lag.

Sources: NVIDIA: Video Encode and Decode GPU Support Matrix; Twitch: Introducing the Enhanced Broadcasting beta; YouTube Help: Live encoder settings, bitrates and resolutions; Kick Help: H.264 only, CBR required. Checked November 13, 2026.