2012 14" Dell Latitude E6430 [3rd,4C,Q] + RX 580 @ 4Gbps-EC2 (EXP GDC 8.4) + Win10 [Sabrefv]
I wanted to build a budget eGPU build. Total $462.91 cheaper than some desktop budget builds.
I thought that expresscard connection would yield very poor performance due to only 4GBps port and Aida64 results are in line with bandwidth published by @nando4 Gamin gperformance on Fortnite very good (still to test Battlefield) Epic 60FPS @ 1080P.
I think you can score ebay bargains on old Intel gen 3,4 and 5 business grade laptops with quad cores that can get at least modest to medium performance with a cheap EXP GDC and medium rank graphics card.
1. Manufacturer Refurb Dell Latitude E6430 HD+ Core i7 Business Laptop 8GB 500GB HDD Win 10 Pro (Intel Core i7 3rd Gen., Core i7-3740QM 2.7GHz – Intel HD4000 iGPU; NVS 5600 dGPU) - $249
2. PCI-E 6-pin to 2x 6+2-pin (6-pin/8-pin) Power Splitter Cable PCIE PCI Express – $3.49 (I couldn’t find Beast 6 pin male to 2 x 6+2 pin male and didn’t want to wait for it from China. Only female to male available on ebay) – this provides power from the Beast to GPU
3. 60cm 18AWG 6Pin Male to 6Pin Male Video Graphics Card PCI-E Power Adapter Cable - $6.33 (works with the previous item to make it male to male like the Beast cable)
4. Used Dell DA-2 USFF Power supply Optiplex 745 755 760 D220P-01 MK394 AC ADAPTER - $10.45
• EXP GDC (8.4) Laptop External PCI-E Graphics Card for Beast Expresscard w/ Cable AC773 - $38.64
• New MSI Gaming Radeon RX 580 256-bit 8GB GDRR5 DirectX 12 VR Ready CFX Graphics Card (1340 MHz; 2304 Cores) - $155
Total - $462.91
Aida64 bandwith (GPGPU)
· Unigine Heaven (external monitor) High
· Unigine Heaven (external monitor) Ultra
· 3DMARK Time Spy
· Plug Dell 220W power supply to Beast 8 pin (don’t power on yet)
· Plug RX 580 into Beast PCI slot
· Move Beast switch PWR to permanent on
· Plug in GPU power cables from Beast 6 pin to GPU (this model had just 1 x 8 pin power connection)
· Power on Dell laptop and enter windows
· Plug Dell 220W PSU into power
· Hot plug Expresscard from Beast to EC port on Dell Latitude e6430 – immediate blue screen. System then shuts down
· Immediately reboot laptop which then recognized eGPU (Microsoft default driver shown in Device manager)
· Disabled dGPU (Nvidia NVS 5200) in Device Manager
· Took about 1 hour and then downloaded and ran benchmarks
I could not duplicate displays (only extend displays – still investigating fix) so ran benchmarks on external monitor only
For a budget eGPU build there can only be a RX580. Since long ago this is the best value for money. The 4GB port may be a problem for particular games/application, but on external monitor, it's mostly not. It would be interesting if you try to run your dGPU without disabling it by trying this boot camp guide.
Thank you @OliverB. With your instructions are you saying that the dgpu and egpu can both be active?
Yes, reliably. With nVidia eGPU this was always possible, but it's possible now with AMD eGPU, too. I am doing this all the time. But I do have an AMD dGPU, so your case may be interesting.
@oliverb once I have all 3 enabled (iGPU, dGPU, eGPU) how to I force my games to use the eGPU? I dont seem to be able to find that in Radeon settings
iGPU - Intel HD 4000
dGPU-NVIDIA NVS 5200
eGPU -AMD RX 580
is it through Windows Settings->Display->graphics settings?
I am not sure. This scenario (iGPU, dGPU and eGPU enabled) is not possible on a MacBookPro in Bootcamp.