Run results for: Render to image (scaled) vs render to canvas

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Render image

1.6M/s

Render to canvas

4K/s

View exact numbers

Test name	Executions per second
✓ Render image	1,643,729 Ops/sec
Render to canvas	3,812 Ops/sec

HTML Preparation code:

<canvas id='canvas' width='512' height='512'></canvas>
<img id="image" width='64' height='64' />

Script Preparation code:

var ctx = document.getElementById('canvas').getContext('2d');
var imageData = ctx.getImageData(0,0,512,512);

Tests:

Render image
var img = document.getElementById("image"); ctx.drawImage(img, 0, 0, 64, 64);
Render to canvas
ctx.putImageData(imageData,0,0);