You can find dual core i7 chips too. Depending on how old it is, a newer i5 can be better than an older i7, but it also depends on what it's going to be used for. The newer Core i5 chips are so efficient, they rival the i7's in many cases, and compared to i7's of the same generation, the i5 CPU's offer much more bang for your buck. You don't pay nearly as much, and you only lose a little bit of power.This quote is hidden because you are ignoring this member. Show Quote
For instance, my surveillance cameras record to Blue Iris, a Windows-based recording software. The software is quite CPU-intensive, especially if you have a lot of HD cameras. My older desktop, an i7-2600K, was sitting around 40~45% CPU usage. I replaced it with the Lenovo I mentioned in my last post, which has an i5-4570, if I'm not mistaken. Newer architecture, and better Intel graphics acceleration...CPU usage on that guy is like, 25%, with the same software and cameras.
If you want to compare CPU's, cpubenchmark.net is a great resource. In the case of the T470p quote I posted, the Core i5 chip wasn't as powerful, but it wasn't THAT far off. For most everyday tasks, you won't notice the difference. For CAD/SketchUp, maybe, but the graphics and RAM probably matter more than the CPU for that.
Both are easy, especially in a ThinkPad. The 'Hardware Maintenance Manual', as Lenovo calls it, details every single step for you, with diagrams/pictures.This quote is hidden because you are ignoring this member. Show Quote
As I write this, I was looking at the maintenance manual and the user guide for the T470p.
As Seth1968 just said, it definitely is a little tougher than it used to be, but it's not that bad.
The hardest part is removing the cover, but thankfully, it doesn't look like there are any ribbon cables, lol...I had that problem with my Asus!!
Once you get all the screws and pull the cover off, you just slide the drive cage out of the connector, pull it up, remove the bracket from the drive, attach it to the new one, and put it back together. From the diagrams, it looks like there are no screws on the drive, it's just a flexible bracket, which I've seen in other Lenovos. They are super easy to remove and install.
The memory is pretty easy...you have to open the cover (maybe do the RAM and SSD at the same time!!), slide the metal tabs aside, and pull the chip out.
If you want 8GB of RAM off the hop and don't want to do it yourself, you can pay Lenovo to do it...they charge $95, and I'm pretty sure getting a second 4GB DIMM from Mem Ex would be like, $50, so it's not a huge difference. You'll see more savings in doing the SSD yourself, or if you want more than 8GB of RAM. 4GB is "enough", but I'd recommend getting at least 8GB, especially if you're doing CAD, and want to keep the laptop for a long time.
I have heard good things about the XPS 13/15 and Latitude series from Dell (Inspirons are crap though). But, while admitting full bias, when I think of the words 'laptop' and 'reliability', I think 'Thinkpad'.This quote is hidden because you are ignoring this member. Show Quote
I wonder if I could ask Lenovo for a commission...