you notice the performance gain…. truly…. keep in mind though that it will not be twice or three times as fast…. there’s about a 15%-20% gain…
if you are planning to install the PCIe SSD drive, you might as well upgrade the CPU….. btw…. if you still have a HDD replace that with an SSD too…. no more spinning drives inside
i am not sure about the 3770K. it should work as the TDP is the same… but in an iMac, the unlocked multiplier is not usable… so you might as well buy a cheaper 3770 (as they are nearly half the price of a ‘K’)
No not possible… the GPU is soldered to the PCB…. you can only upgrade by sourcing a new motherboard with a better GPU (and you might as well add a new CPU to that as well….
I just Upgrade the base unit with a i5 3470S, to a i7-3770. it takes approx 2.5 - 3 hours total.
one thing with placing the CPU, is you need to check how the old CPU is “pasted” to the heat sink. on the bottom left of the dye you should be able to read ‘100’.
this is also on the replacement CPU so you know how to place it (along with the 2 indentations)
booting up works a charm and the CPU is recognized…
again be very careful not to damage the screen…. just use the Pizza cutter……
Used this guide to upgrade an A1355 timecapsule from a 1TB to a 4TB drive… worked flawlessly…. Drive is a Seagate Ironwolf 4TB disk.
this step is extremely important NOT to stick in the cards too far….. doing so, you risk a 600 euro replacement as I experienced………
Same thing with me…. Pushed cards to far…. new panel needed…€600…..
i think ifixit needs to place a bigger caveat, as I have missed it the first time