3.1 GHz Kaby Lake Processor Upgrade Worth it?


vipergts2207

macrumors 68020
Apr 7, 2009
2,068
2,436
Columbus, OH
I generally don't think they are worth the cost and opted not to get the upgrade last year. An extra $200 on a ~$3k laptop isn't too crazy, but for me it was and still would be a no. GPU's typically depreciate faster than the CPU's.
 

maerz001

macrumors 65816
Nov 2, 2010
1,315
972
Usually u gain 5-10% processing power. So depending on ur use case this will help for rendering or video decoding.
But not for surfing or office ;)
 

JPizzers

macrumors newbie
Sep 11, 2017
4
2
Do you mean the 2.9 GHz one Vs the 3.1 or just in general?

If the former and its 2.9 vs 3.1 you mean then no...probably not.
 

Patcell

macrumors 6502
Aug 8, 2016
427
176
Bergen County, NJ
guys, how about 2.8 vs 2.9?
I am not super educated on this, but there may be a bigger difference going from 2.8 to 2.9 because there is a jump from 6MB L3 cache to an 8MB L3 cache with that upgrade. 2.8 (7700HQ) to 2.9 (7820HQ) is not simply a clock-speed upgrade. Going to the 3.1 (7920HQ) is a clock-speed only boost I believe, so probably not as valuable.
 

unlogic

macrumors newbie
Apr 4, 2013
24
7
Japan
I am not super educated on this, but there may be a bigger difference going from 2.8 to 2.9 because there is a jump from 6MB L3 cache to an 8MB L3 cache with that upgrade. 2.8 (7700HQ) to 2.9 (7820HQ) is not simply a clock-speed upgrade. Going to the 3.1 (7920HQ) is a clock-speed only boost I believe, so probably not as valuable.
I am also thinking about the bigger cache benefit. I wonder if 2.9 (7820HQ) will sap more energy and release more heat than 2.8 (7700HQ)?