There are quite a few quad-core, single-board, fanless ARM computers: utilite, wandboard, odroid, udoo, radxa.
I have two odroid U2 that I use for testing distributed and multithreaded code. One odroid core (exynos 4412 @1.7GHz ) is more than 8x as fast as the pi, for some numerical simulation code (ODEs). Storage is eMMC, so should be faster than the class 10 SD card in a Pi. It was very easy to get Linaro set up on them (for headless use, as compute servers). Recommend highly.
I use my two RPi for file serving, backups via rsync and btsync, limited web (one is at a remote location).
There's a utilite pro on order as well, but they are a bit backlogged, as I understand it. I'm looking forward to the 2x Gb eth (odroid is 100Mb) and faster bus and disk speeds.
I have two odroid U2 that I use for testing distributed and multithreaded code. One odroid core (exynos 4412 @1.7GHz ) is more than 8x as fast as the pi, for some numerical simulation code (ODEs). Storage is eMMC, so should be faster than the class 10 SD card in a Pi. It was very easy to get Linaro set up on them (for headless use, as compute servers). Recommend highly.
I use my two RPi for file serving, backups via rsync and btsync, limited web (one is at a remote location).
There's a utilite pro on order as well, but they are a bit backlogged, as I understand it. I'm looking forward to the 2x Gb eth (odroid is 100Mb) and faster bus and disk speeds.