Old PC keeps crashing Dolphin... Which of these desktops would be better?

[bernie6127]

So I'm looking for a desktop strictly for emulation, mainly Dolphin & PCSX2.

I have a budget of about $1000, but preferably <$800
Which of these would be the best choice? Or is there one/some options that you guys can recommend?
Thanks!!!

https://www.amazon.com/CYBERPOWERPC-GXiVR8060A2-Desktop-i5-7400-7200RPM/dp/B01MT0781S/ref=sr_1_8?s=pc&ie=UTF8&qid=1503301433&sr=1-8&keywords=gaming+desktop

https://www.amazon.com/CYBERPOWERPC-GXiVR8020A3-Desktop-Graphics-802-11AC/dp/B071NG75BW/ref=sr_1_5?s=pc&ie=UTF8&qid=1503301433&sr=1-5&keywords=gaming%2Bdesktop&th=1&psc=1

http://www.signa.com/product/signa-start-pc-i3-8gb-1tb/

http://www.signa.com/product/signa-gamer-pc-cpu-intel-core-i5-7500-kaby-lake-quad-core-3-8-ghzmemory-8gb-ddr4-hyperx-furystorage-1tbgpu-1050-ti-4gbos-windows-10-64-bit-english/

http://www.dell.com/en-ca/shop/desktops/alienware-alpha/spd/alienware-alpha-r2-desktop/dacorr2_f_b1e

[ExtremeDude2]

Do you have a preference of a pre-built over building one yourself?

Edit: Looks like you already made this post somewhere else so never mind

https://forums.dolphin-emu.org/Thread-which-of-these-desktops-is-best-for-dolphin

[Shonumi]

Please use only one thread for the same question. Since your other thread has more information, please use that: https://forums.dolphin-emu.org/Thread-which-of-these-desktops-is-best-for-dolphin