Review: NUC vs Raspberry Pi

I like small, cheap, quiet computers… perhaps a little too much. For a long time I have used a Raspberry Pi V2 (QuadCore@900MHz and 1GB RAM) as a workstation. To be honest, I have not used it for web browsing, that is just too painful. But I have used it for programming and running multiple Node.js services, and a few other things.

Despite there are so many single board computers it is hard to find really good alternatives to the Raspberry Pi. And when I look into it, I find that Intel NUCs are very good options. So, I just decided to replace my RPi2 workstation with the cheapest NUC that money can currently buy: the NUC6CAY with a Celeron J3455 CPU. It sounds cheap, particularly for something server like. The interesting thing with the J3455 CPU is that it is actually Quad Core, with no hyper threading. To me it sounds amazing!

I also have an older NUC, a 54250WYKH with an i5 CPU.

Raspberry Pi V2:   ARMv7    4 Cores      900MHz                  1GB RAM
NUC                Celeron  4 Cores      1500MHz (2300 burst)    8GB RAM
NUC                i5       2 Cores (HT) 1300MHz (2600 burst)   16GB RAM

I/O is obviously superior for the NUCs (both using SSD) versus the RPI v2 having a rotating disk connected to USB. But for my purposes I think I/O and (amount of) RAM makes little difference. I think it is more about raw CPU power.

Node.js / JavaScript
When it comes to different Node.js applications, it seems the older i5 is about twice as fast as the newer Celeron (for one Core and one thread). I would say this is slightly disappointing (for the Celeron). On the other hand the Celeron is about 10x faster than the RPi V2 when it comes to Node.js code, and that is a very good reason to use a NUC rather than a Raspberry PI.

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