GPU Tester - Test Your Graphics Card Performance Online
Detect your GPU name and vendor, measure real time FPS, and stress test your graphics card for thermal throttling.
The TechTester GPU tester lets you check your graphics card performance directly in your browser using WebGL the same graphics API that powers 3D web applications and browser games. Open this page in Chrome or Edge and the tool automatically detects your GPU name, vendor, and WebGL version. Click Run Benchmark to start a progressive performance test that measures your GPU frame rate across increasing complexity levels and produces a benchmark score on a scale of 0 to 10,000. Switch to Stress Test mode to push your GPU at sustained load to reveal thermal throttling and stability issues. All testing happens in your browser. No download of FurMark, 3DMark, or any other software is required.
Online GPU Tester
Detect your graphics card and benchmark its performance — runs entirely in your browser.
Test Settings
GPU Information—
- Vendor—
- Renderer—
- WebGL Version—
- WebGL2 Support—
- WebGPU Support—
- Max Texture Size—
- Max Cube Map—
- Max Viewport—
- Max Vertex Attribs—
- Max Texture Units—
- Max Render Buffer—
- Shading Language—
- Anti-aliasing—
- Float Textures—
- Anisotropic Filter—
- Compressed Textures—
- Device Pixel Ratio—
- Screen—
- Color Depth—
- Logical CPU Cores—
- Device Memory (GB)—
- Platform—
Benchmark Results
Idle. Pick settings, then click "Run Full Test".
Live Render Preview
Test Log
Ready.
Powered by HRMware — runs locally in your browser.
What the TechTester GPU tester shows you
The TechTester GPU tester uses WebGL and the WEBGL, debug, renderer, info extension to detect your graphics card and measure its performance. Here is what each display element shows:
GPU name and vendor
Your graphics card model and manufacturer detected automatically. Shows NVIDIA, AMD, Intel, Apple Silicon, or mobile GPU on page load.
WebGL version
Whether your browser supports WebGL 1.0 or 2.0. WebGL 2.0 is required for the full benchmark. Most modern browsers and GPUs support it.
Real time FPS
Frames per second your GPU renders during the benchmark or stress test. Updated every second. Watch for FPS drops indicating thermal throttling.
Benchmark score
A 0 to 10,000 score based on average FPS across all benchmark stages. Higher is better. Compare before and after driver updates or overclock changes.
Frame time graph
Real time graph of how long each frame takes in milliseconds. Flat line equals stable. Spikes indicate stutters. Rising graph means thermal throttling.
Stress test mode
Sustained maximum-load test to push your GPU and reveal thermal throttling. Essential after overclocking or diagnosing performance drops over time.
How to test your GPU online
Step 1 – Open in Chrome or Edge
The WebGL GPU benchmark works best in Chrome or Edge on Windows, Mac, and Linux. Firefox also fully supports WebGL 2.0. Open this page and your GPU name and vendor will be detected automatically within a few seconds.
Step 2 – Click Run Benchmark
Click Run Benchmark. The test runs through multiple stages of increasing complexity simple 2D rendering, particle systems, 3D geometry with lighting, then complex shader calculations. Each stage measures FPS. The benchmark takes 30 to 60 seconds. Keep the browser tab in focus throughout background tabs receive fewer GPU resources and produce lower scores.
Step 3 – Read your benchmark score
Your score appears on a 0 to 10,000 scale. Use the GPU performance tier table in Section E to understand what your score means. The score reflects WebGL performance. A mid-range dedicated GPU will score significantly higher than integrated graphics even at a similar price point.
Step 4 – Run the stress test (optional)
Switch to Stress Test mode and click Start. Watch the FPS counter and frame time graph over 5 to 10 minutes. If FPS drops significantly after 2 to 3 minutes of sustained load your GPU is thermal throttling slowing down due to heat. This is expected on thin laptops but may indicate a cooling issue on desktop PCs.
What does your GPU benchmark score mean?
Use this table to understand where your GPU sits relative to common performance tiers:
8,000+ | Enthusiast GPU | High end dedicated GPU (RTX 4080, RTX 4090, RX 7900 XTX). Excellent for 4K gaming, 3D rendering, video production. |
6,000-7,999 | High-end GPU | Upper mid range (RTX 4070, RX 7800 XT, RTX 3080). Great for 1440p and 4K gaming at high settings. |
4,000-5,999 | Mid-range GPU | Mid range dedicated GPU (RTX 4060, RX 7600, GTX 1080 Ti). Good for 1080p and 1440p at medium to high settings. |
2,000-3,999 | Entry or high integrated | Entry GPU (GTX 1650) or high end integrated (Apple M2/M3, Intel Arc). 1080p gaming at low to medium settings. |
500-1,999 | Integrated graphics | Standard integrated GPU (Intel UHD, AMD Radeon Vega). Light tasks, video playback, older games at low settings. |
Below 500 | Limited capability | Very old GPU, software rendering, or WebGL without hardware acceleration. Check browser hardware acceleration settings. |
Why your score might be lower than expected
Common causes: browser tab running in background (keep in focus during test), laptop on battery in power saving mode (plug in, set High Performance), outdated GPU drivers (update via GeForce Experience or AMD Adrenalin), hardware acceleration disabled in browser (check chrome://gpu), or another GPU intensive app consuming resources during the test.
GPU test not working or score lower than expected?
Fix 1 – Enable hardware acceleration in your browser
If WebGL is in software mode your score will be dramatically lower than your GPU actual capability. Chrome: Settings then System then enable Use graphics acceleration when available then relaunch Chrome. Edge: Settings then System and performance then enable Use hardware acceleration. Firefox: Settings then General then Performance then enable Use hardware acceleration.
Fix 2 – Update your GPU drivers
NVIDIA: download GeForce Experience and check Drivers then Update. AMD: download AMD Adrenalin and check for updates. Intel: use Intel Driver and Support Assistant from intel.com. Restart your computer after updating and retry the GPU test.
Fix 3 – Set power mode to High Performance on laptops
Laptops on battery in power saving mode significantly reduce GPU performance. Plug in and set Windows power mode to Best Performance via the battery icon. Apple Silicon Macs perform similarly on battery or plugged in. Intel Mac laptops may show better scores when plugged in.
Fix 4 – Close other GPU-intensive applications
Games, video editing software, 3D applications, or cryptocurrency mining running in the background consume GPU resources and lower your benchmark score. Close all other applications before running the GPU test for an accurate result.
Fix 5 – Try a different browser or check WebGL status
Chrome and Edge often deliver higher WebGL scores than other browsers. In Chrome type chrome://gpu in the address bar. The Graphics Feature Status section should show WebGL as Hardware accelerated. If it shows Software only follow Fix 1 above.
TechTester GPU tester vs other browser GPU benchmarks
Other GPU testers – limitations
timbrica.com good benchmark but no score interpretation table
webgpustress.com technical, complex for average users
volumeshader.dev excellent but developer oriented language
hardwaretester.com minimal content around the GPU tool
All sites show a score but never explain what it means
No site explains why score might be lower than expected
No site covers hardware acceleration or driver fix steps
All single tool sites no mic or keyboard testing nearby
TechTester – your advantagePlain English 6 tier table: what your score actually means Tier labels from Enthusiast GPU down to Limited capability Why score might be low: battery, driver, tab focus, background apps 5 fixes: hardware acceleration, drivers, power mode, close apps, browser Written for gamers and general users not developers GPU name and vendor detected automatically and shown clearly Part of TechTester hub GPU, mic, keyboard, gamepad all here Privacy first all processing in browser, no data transmitted |
FAQ:
Yes. The TechTester GPU tester runs a complete WebGL benchmark in your browser. It detects your GPU name, measures FPS across multiple rendering stages, produces a 0 to 10,000 benchmark score, and offers a stress test mode. Completely free, no signup, no download required.
Browser GPU benchmarks are excellent for relative comparisons and quick checks but cannot match the precision of dedicated native tools. Results vary by browser version, driver, and system load. TechTester is ideal for checking whether your GPU is performing as expected and for before and after comparisons after driver updates.
Most common causes: hardware acceleration disabled in browser, laptop on battery saving mode, outdated GPU drivers, other GPU intensive apps running, or test running in a background tab. Follow the 5 fixes in Section F to resolve each cause.
Above 6,000 indicates a high end dedicated GPU performing well. 4,000 to 6,000 is mid range. 2,000 to 4,000 is entry dedicated or high end integrated graphics. Below 2,000 suggests integrated graphics or a hardware acceleration issue in the browser.
No. The TechTester GPU stress test runs within the browser sandbox and cannot damage your GPU. Your GPU drivers and operating system thermal management remain in full control and will reduce GPU speed before any damage could occur.
WebGL is not using your GPU directly. Most likely hardware acceleration is disabled in browser settings. Enable it in Chrome Settings then System. Or update your GPU driver. Check chrome://gpu in Chrome for the full GPU status report.
Yes. Switch to Stress Test mode and watch the FPS counter over 5 to 10 minutes. If FPS drops significantly after 2 to 3 minutes of sustained load your GPU is thermal throttling due to heat. Normal on thin laptops but may indicate a cooling issue on desktop PCs.
Yes. Works on macOS via Chrome, Firefox, Safari, or Edge, and on Linux via Chrome or Firefox. Apple Silicon Macs (M1, M2, M3, M4) show strong WebGL performance. On Linux ensure GPU drivers and Mesa are up to date for best WebGL results.