GPU artifacting - what it means and what to do

Flickering blocks of colour. Pixels that shouldn't be there. Geometric shapes scattered across the screen, or textures that look like they've been put through a blender. If you're seeing any of this, your GPU is artifacting - and it's worth taking seriously.

What actually causes artifacts

Artifacts happen when your GPU produces incorrect visual output. The underlying causes fall into a few categories:

Overheating is the most common. When a GPU gets too hot, it throttles performance and starts producing errors in its output. Dried-out thermal paste, a blocked heatsink, or a fan that's failing to spin up are the usual culprits.

VRAM failure produces some of the most dramatic artifacts - random coloured pixels, corrupted textures, or parts of the screen filling with a solid colour. VRAM chips degrade over time, and running a card hard at high temperatures accelerates that process significantly.

Failing solder joints are common on older cards, particularly GPUs from the GTX 900 and RX 400/500 era. The constant heating and cooling cycles over years of use can cause microscopic cracks in the solder underneath the GPU die, leading to intermittent contact issues that show up as artifacts.

Driver problems can also produce artifact-like behaviour, though these tend to look slightly different - usually flickering or incorrect colours rather than persistent geometric corruption. Worth ruling out before assuming hardware failure.

Overclocking pushed too far will cause artifacts almost immediately. If you've recently adjusted clock speeds or power limits, dial them back.

How to tell if it's serious

Not all artifacts mean the card is dying. Use these as a rough guide:

• Only happens at high load or high temperature - likely a thermal issue, often fixable
• Appears at desktop or in lightweight tasks - more serious, suggests VRAM or core damage
• Gets worse over time within a session - classic sign of thermal throttling
• Consistent pattern or location on screen - points to a specific VRAM chip failure
• Happened suddenly after a normal session - could be solder joint failure, worth investigating quickly
• Only started after a driver update - try a clean driver reinstall with DDU before assuming hardware

What to do first

Check temperatures. Download HWiNFO64 or MSI Afterburner and monitor your GPU temperature under load. A GPU hitting above 90-95°C regularly is too hot. If temperatures are fine, thermal paste and airflow probably aren't the issue.

Run a stress test. Fire up FurMark or 3DMark and watch for how quickly artifacts appear and at what temperature. If the card artifacts within minutes at moderate load, the fault is more significant than if it only shows up after 30+ minutes at full load.

Do a clean driver reinstall. Boot into safe mode, run DDU (Display Driver Uninstaller) to strip out all GPU driver files, then reinstall the latest driver fresh from Nvidia or AMD's site. This rules out software causes entirely.

Test in another machine if you can. If the artifacts follow the GPU to a different system, the card is at fault. If they disappear, the issue may be with your motherboard's PCIe slot or power delivery.

What can be repaired

Artifacts caused by overheating are often fully recoverable once the thermal issue is fixed - replacing dried thermal paste and cleaning blocked heatsink fins can bring a throttling card back to full stability.

Solder joint failures are repairable at component level through reballing - a process that removes the GPU die, cleans the old solder, and applies fresh balls to the contacts. It's not a job for a soldering iron at home, but it's a well-established repair that can recover a card that would otherwise be binned.

VRAM chip failures are more variable. A single failed chip on an otherwise healthy board can sometimes be replaced. Widespread VRAM degradation across multiple chips usually isn't economical to fix.

When to stop and send it in

If you've ruled out drivers and temperatures and the artifacts are still there - or getting worse - the card needs proper diagnosis. Running an artifacting GPU hard risks accelerating whatever failure is already underway.

We can bench-test GPUs under controlled load, identify whether the fault is thermal, VRAM, or solder-related, and give you an honest assessment of whether repair is viable before you spend anything. If the card is under warranty, we can also document the fault to support a claim.