Anybody ever used a laptop with an eGPU for gaming? I'm thinking about building that instead of putting money into my desktop box right now. I'm curious if anyone has anything particularly bad to say about the method.
What I'm planning on using is an expresscard-based external GPU slot like this:
https://www.banggood.com/Expresscard-Ver...09976.html
I'll either buy a Dell DA-2 220W power supply for $10 online, since I know that works with the eGPU adapter, or use one of my handful of ATX power supplies I have sitting around.
For the GPU, right now I'm planning on buying an EVGA GeForce GTX 1050 Ti (specific version to be determined) but I'm open to buying something else. I don't much like the 128 bit memory bus width the 1050 Ti has even though it's supposedly a very solid card for the price.
Then I'll hack together some kind of enclosure for it. Maybe out of sheet steel and rivets since I have some lying around from a recent project. I want this to be quite portable and easy to set up, which is why I'll probably go with the Dell power supply. It's more like a laptop power supply than a big ass ATX brick with cables flopping all over the place.
I'm leaning toward the eGPU instead of just upgrading my desktop for a few reasons:
1. I can have this set up for < $200, whereas I'll need to put around $350 into the desktop to get the same amount of RAM my laptop already has and a CPU fast enough that it won't bottleneck the GPU. My laptop CPU is only a dual core with hyperthreading (i5-3380m) but I think it will be fine for 1600x900 resolution. That's the best monitor I have anyway.
I've heard
TW3 utilizes hyperthreading well, so hopefully that's true.
The current CPU in the desktop is an ancient Phenom II. Totally worthless for modern gaming.
2. I'm interested in general purpose computing on GPUs, including potential applications in cluster computing, and this will serve as a hardware proof of concept for one of my ideas. I'm not made of money here, and I'm thinking about making a small cluster of refurbished T430 laptops since they're pretty fast, cheap (~$160 to $210 for a basic machine, I bought another one recently and it was brand new, never been turned on for $205), durable, and come with gigabit NICs. It will be a lot cheaper, if probably less powerful, to just add some expresscard eGPUs to the Thinkpad cluster than try to put together a decent cluster of identical desktop nodes.
3. I want this thing to be very portable so I can share it between two laptops or take it on the road, or let someone I trust borrow it.
4. If this thing fails and is totally unsatisfactory, I'm only out the $65 or so for the power supply and eGPU adapter. I can still use whatever card I buy in my desktop machine. So it's pretty low risk and might get me playing
TW3 a lot sooner than waiting to build the desktop up since that's pretty low priority.
5. I want to use the desktop as a Linux server and NAS anyway, and it would be annoying to take the server/NAS offline to boot into Windows every time I want to play a game.
So, thoughts?