I've recently bought a PCI-e x16 to mini PCI-e adapter for my laptop and I was wondering what Graphics card I should buy. I was thinking of a GTX 750 TI, GTX 1050 (when prices drop) or GT 1030. If relevant, here are my laptop's specs: i5-2430M CPU, Geforce 315M GPU, 2*4GB DDR3 1333MHz system RAM, 512MB DDR3 VRAM. You can see the adapter in the image. the cable that connects the x16 slot to the mini PCI-e plug is USB 3.0. I know that no matter what graphics card I buy I will not see the full performance it's capable of. The reason why I do not buy a decent gaming laptop is that I can not afford one.

What GPU to buy for a PCI-e x16 to mini PCI-e adapter?

By Introvert_Monk
July 1, 2017 in Graphics Cards

Go to solution Solved by -rascal-, July 2, 2017

20 hours ago, LucasRem said:

GPU cards need 8x minimal to run, and do not run on a DC power things too!!! only nintendo are happy with DC, PC's need a PSU!

so many things you need to read, so many reasons this will never work, even mining OS people don't need what you bought, they, the mining os runners only need PCIe gen 1 or 2 in 1x!!! you need PCIe 3.0 16 lanes!!!!!!!! or 8 at least, not 1X on DV 12v!!!!!!!

Start reading about what is PCIe on wiki or what ever, 1x, 4x 8x and 16x !!!!!!! and were they are used for, why a GPU needs 16x PCIe 3.0 lanes!!!! even NVM needs 4x at least!!!

WHAT KIND OF CANCER IS THIS??

Do you have anything to back up your claims?!

GPUs can run on PCI-E X1.

You just need to power it externally, and will be bandwidth limited.

Furthermore, look at the external GPU enclosures that were showcased at CES and Computex this year.

Most of them connect to the computer via Thunderbolt / USB Type-C, or USB 3.0 / 3.1, and they need external supply to power the GPU.

nVidia SLI can only functions only if the GPUs are operating at PCI-E X8 electrically at the minimum.

This is a limitation put in place via SOFTWARE.

You can run a graphics card using with PCI-E X16, X8, X4, or X1.

PCI-E X1 will significantly limit you in BOTH bandwidth and power -- hence why his PCI-E X16 to PCI-E X1 adapter has a DC power source connector.

AMD Crossfire works on slot running electrically at PCI-E X4.

It may or may not physically be PCI-E X16.

Spoiler

AsRock H97 performance motherboard.

PCI-E X16 slot on the left operates at PCI-E X4 electrically.

PCI-E X16 slot on the right operates at PCI-E X16 electrically.

ALL consumer electronics run on DC Voltage.

A computer PSU converts the 115V or 230V Alternating Current (AC) source to a Direct Current (DC) voltage source, AND steps is down to 12V, 5V, and 3.3V.

80%+ of a modern computer relies on the +12V line on the PSU.

When you plug your devices to the USB port on your computer; that IS +5v DC.

You know the big "brick" that you plug into the wall socket to charge your smartphone?

That is a AC-to-DC transformer that converts the wall socket's 115V or 230V AC to 5V DC.

Posted July 3, 2017

PSU's are there to give you a stable continues Watt and Voltage, needed for peaks in performance, if you run a PC om a 12v Nintendo grade DC power, it will just never boot, but if you can make a picture, cool!