eGPU with Thinkpad X230 Tablet

Hello.

I am a newbie here. I am reading posts to make eGPU for my Thinkpad X230 Tablet. Recently I decided to buy this graphic card:
Shapphire Randeon HD 7950.
SAPPHIRE 100352-2L Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card - Newegg.com

Is it a good purchase for my eGPU? I bought it, honestly, because it is in a promotion period. How much performance I can get with the card? Will I have any bottleneck, incompatibility with my card?

The card support PCI Express 3.0. I tried to find the PCI express information on my Thinkpad. Could anyone confirm that Thinkpad X230 Tablet comes with PCI Express 3.0 or 2.0?


Additionally, I have some technical questions. (Sorry for my stupid questions because I am a newbie).
1. What is TOLUD, iGPU, dGPU? What do I need to care about them ?
2. I see some people posted about DSDT override? Does my system need to do that?

I will keep posting when I have any question.


Thank you.

 

Sorry, One more question:

Correct me if I am wrong. PE4L is x1 PCI while PE4H is x16. I read some articles saying that PCI Express X16 has larger bandwidth than PCIE x1. So, Does it means that PE4H is better than PE4L?

Do both of the cards suppot PCI Express 3.0?

Thank you.

 

Hello, Can anyone help me?

 

I've got an X230 that I just recently did a eGPU install on. It doesn't matter if the PE4L of PE4H suppors x16, the expresscard slot on the thinkpad is bandwidth limited to x1. Go for whatevers cheaper since you won't see a performance boost. However, I do recommend you get a NVIDIA graphics card as it supports pci compression of data which means you'll get a performance boost that somewhat remedies the limited bandwidth of expresscard slot.

 

I got a GTX 660 and the PE4L express card adapter with a corsair psu. Everything was just plug and play and I didn't have to mess with any settings. Just get your drivers in order before doing anything.