A Computer for Streaming: What Matters for Broadcasting on Twitch, YouTube and Kick

Streaming is gaming, video production and live broadcasting all at once. The computer has to run the game at a high frame rate, encode video in real time, process microphone audio and display chat, overlays and donation alerts — all without a single hitch, because viewers notice stutter and audio sync problems immediately. Yet the most common problems for new streamers have nothing to do with raw power; they're about settings, the internet connection and sound. Let's look at what really matters.

How the computer encodes video

Your screen has to be compressed in real time before it's sent to the platform. There are two ways to do it: in software on the CPU, or in hardware using a dedicated encoding block on the graphics card. Modern graphics cards have very good hardware encoders that barely affect in-game performance. So for most streamers today, GPU encoding is the best option, leaving the processor free for the game and other programs. Software encoding on the CPU can look slightly better at low bitrates but needs a very powerful multi-core processor.

What matters in the hardware

The graphics card is the key component: it renders the game and encodes the stream at the same time. It needs a modern hardware encoder and enough headroom that the game doesn't max it out — otherwise the stream suffers too. The processor needs spare cores, because the game, streaming software, a browser with chat, Discord and audio filters all run in parallel. Memory should be 32 GB or more to handle all of that comfortably. Storage means a fast SSD for the system and games and a separate drive for recordings, which take up a lot of space.

The internet connection: a common weak spot

Streaming depends on upload speed, not download. A 1080p 60 fps stream needs 6–8 Mbps of stable upload, ideally with 50–100% headroom. Stability matters even more: brief speed drops cause dropped frames and frozen video for viewers. Fibre plans in Tbilisi usually offer enough speed, but the trouble often lies inside the flat: Wi-Fi through two walls, an old router, a damaged cable. A streaming PC should always be connected to the router by cable.

Audio matters more than video

Viewers will forgive a less-than-crisp picture, but bad audio will make them leave within a minute. Room echo, fan hum, keyboard clatter and a voice too quiet against a loud game are typical problems. The fixes: a decent microphone, correctly set levels, noise suppression, a compressor and limiter in the streaming software, and separate volume for game, music and voice. A quiet computer matters here too — if the fans roar, the audience will hear them.

Common streamer problems

• dropped frames from unstable Wi-Fi or insufficient upload speed;
• the game runs smoothly but the stream stutters — the GPU is overloaded and needs an FPS cap;
• audio and video out of sync because of wrong audio device settings;
• the game too loud and the voice too quiet, echo and background noise;
• the computer overheating after a few hours on air;
• a black screen instead of game capture on laptops because of how their two GPUs work;
• recordings filling up the system drive.

Streaming from a laptop

You can stream from a laptop, but it's harder: cooling quickly becomes the bottleneck, and after a few hours at full load a laptop overheats and throttles. Laptops with two graphics chips can also have trouble capturing the screen. If streaming is a serious pursuit, a desktop is the better choice.

What a technician does

1. Specifies a computer configuration for your games, stream quality and budget.
2. Tests the internet connection — upload speed and stability — and runs a cable to your desk.
3. Configures the streaming software: encoder, bitrate, resolution, scenes and sources.
4. Sets up audio: microphone, filters, separate tracks and monitoring.
5. Optimises the system, drivers and cooling for long broadcasts.
6. Runs a test stream and checks the statistics.

A real example

A new streamer in Saburtalo complained that viewers were seeing a "slideshow" even though he had a powerful graphics card. It turned out his PC was connected to the router by Wi-Fi through two concrete walls, encoding was running on the CPU at maximum quality, and the uncapped game was holding the GPU at 99%. We ran a cable, switched encoding to the graphics card, capped the game's frame rate and set up audio with noise suppression. The dropped frames disappeared, and viewers commented on how much better his voice sounded.

Lighting is worth a thought as well if you use a face camera: a simple soft light in front of you does more for image quality than an expensive webcam in a dark room.

Let us get you ready to go live

We come out across Tbilisi around the clock to build and configure streaming PCs and run cables to your desk. Learn more on our PC build, network cable installation and computer setup pages.