Quote Originally Posted by kunix View Post
I think you can't easily see which one is faster while looking at map loading because:
1) Firmware caches map data
2) When drawing maps, a considerable bit of time is spent on drawing, so reading speed variations are vanished.
Also reading speeds should be very different on different devices.

So.. I can make patched firmwares which test the reading speeds by reading two long files and measuring the reading time.
I could test it myself but I don't have any devices except nuvi 6xx, which would show completely odd results anyway as it's kinda slow.
If someone is interested tell me your Garmin device model.

would love to try on my Garmin nuvi 2555LMT