3 ms·
And year introduced, so we cant look at trend. Personay it's been crushing to me that Cortex A53 (2012) and A7 (2011, a slightly updated A5, 2009) have been ar
by rektide 4y ago
And year introduced, so we cant look at trend.
Personay it's been crushing to me that Cortex A53 (2012) and A7 (2011, a slightly updated A5, 2009) have been around for so so so so long & still dont have a worthwhile replacement. A55 is out but debateably a 10% win at best, and the almost 2 year old A510 doesnt actually exist/isnt for sale. A7 has some A35s that maybe sort of compete.
I want to see what is changing over time, if anything. I never thought I'd be anywhere as thamkful as I am that RPi has seemingly singlehandedly forced some value delivery, some progress. I dont know that we'd be seeing things like A72's (2015) for under $100 otherwise. The low end market has been rough.
- CameronNemo 4y agoI think the problem with the in order designs is that there is not much to improve on. Most of the gains for OoO cored designs are coming from the branch predictor. You mentioned A55 and A35. There are good boards shipping those cores, now. rk356x and various Amlogic SoCs come to mind.
- rektide 4y agoThe A55's have been around for a bit, yeah. They just dont seem to be noticably better as cores (but there's been ongoing gains in uncore). You may be right that there's just not much headroom perhaps. But supposedly the A510 and announced A515 offer some real gains. I havent tried the A35. I see them as more targetted towards MID devices than the A7 was butb hats product-market segmemtation maybe.